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  • 651.
    Wasserbaur, Raphael
    et al.
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Sakao, Tomohiko
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Extending environmental impact assessments of consumer products with System Dynamics2018Conference paper (Other academic)
    Abstract [en]

    The environmental impact of a product depends on a variety of factors. In this paper, existing assessments are extended through the system dynamics methodology. A conceptual model was developed that contains several factors influencing on the use of washing machine and related CO2e-emissions. A stock and flow diagram allows for a streamlined environmental impact assessment of washing machines in households. The results show that both, wash frequency of households and the development of the energy consumption of washing machines are crucial factors for lowering future CO2e-emissions in the washing machines industry, whereas the sharing of washing machines did not show significant impact.

  • 652.
    Wasserbaur, Raphael
    et al.
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Sakao, Tomohiko
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Lindahl, Mattias
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    System analysis including aspects of governmental policies, business models and product/service design2019In: Procedia CIRP, Elsevier B.V. , 2019, Vol. 83, p. 32-37Conference paper (Refereed)
    Abstract [en]

    For todays transformation towards a circular and resource-efficient economy, an understanding is needed of how changes in socio-technical systems affect resource efficiency (RE). This paper suggests an approach to analyse the RE of socio-technical systems and the related Product-Service Systems (PSSs). A conceptual framework consisting of elements of business models, governmental policies and product and service design is developed. Laundry practices in Sweden serve as the context for a case study. The results indicate that asset sharing is most resource-efficient to facilitate domestic laundry practices, followed by PSSs and individual ownership coming last. This type of analysis helps to understand the role of PSS for RE. Future research focuses on dynamic modelling of socio-technical systems and their impact on RE. © 2019 The Authors. Published by Elsevier B.V.

  • 653.
    Whalen, Joann
    et al.
    McGill University, Canada.
    (Chunbao) Xu, Charles
    Western University, Canada.
    Shen, Fei
    Sichuan Agriculture University, Peoples R China.
    Kumar, Amit
    University of Alberta, Canada.
    Eklund, Mats
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Yan, Jinyue
    KTH Royal Institute Technology, Sweden; Mälardalen University, Sweden.
    Editorial Material: Sustainable biofuel production from forestry, agricultural and waste biomass feedstocks in APPLIED ENERGY, vol 198, issue , pp 281-2832017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 198, p. 281-283Article in journal (Other academic)
    Abstract [en]

    n/a

  • 654.
    Wibeck, Victoria
    et al.
    Linköping University, Department of Thematic Studies, Centre for Climate Science and Policy Research. Linköping University, Department of Thematic Studies, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
    Abrandt Dahlgren, Madeleine
    Linköping University, Faculty of Educational Sciences. Linköping University, Department of Behavioural Sciences and Learning, Studies in Adult, Popular and Higher Education.
    Öberg, Gunilla
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Learning in focus groups: An analytical dimension for enhancing focus group research2007In: Qualitative Research, ISSN 1468-7941, E-ISSN 1741-3109, Vol. 7, no 2, p. 249-267Article in journal (Refereed)
    Abstract [en]

    The focus group is a research methodology in which a small group of participants gathers to discuss a specified issue under the guidance of a moderator. The discussions are tape-recorded, transcribed and analysed. Notably, the interaction between focus group participants has seldom been evaluated, analysed or discussed in empirical research. We argue that considering the focus group in light of current research into interaction in problem-based learning (PBL) tutorial groups would facilitate the deliberate exploitation of group processes in designing focus groups, staging data collection and analysing and interpreting data. When the analytical focus shifts from mere content analysis to an analysis of what the participants themselves are trying to learn, one can explore not only what the participants are talking about, but also how they are trying to understand and conceptualise the issue under discussion. © 2007 Sage Publications.

  • 655.
    Widgren, Maria
    et al.
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Sakao, Tomohiko
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    UNANSWERED QUESTIONS IN CONCEPTUAL DESIGN TOWARDS CIRCULAR ECONOMY2016In: DS 84: PROCEEDINGS OF THE DESIGN 2016 14TH INTERNATIONAL DESIGN CONFERENCE, VOLS 1-4, DESIGN SOC , 2016, p. 571-578Conference paper (Refereed)
    Abstract [en]

    n/a

  • 656.
    Wiesner, Stefan
    et al.
    University of Bremen, BIBA – Bremer Institut für Produktion und Logistik GmbH, Germany.
    Nilsson, Sara
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Thoben, Klaus-Dieter
    University of Bremen, Faculty of Production Engineering, Germany.
    Integrating Requirements Engineering for Different Domains in System Development: Lessons Learnt from Industrial SME Cases2017In: Procedia CIRP: 9th CIRP IPSS Conference: Circular Perspectives on PSS / [ed] Tim C. McAloone, Daniela C.A. Pigosso, Niels Henrik Mortensen and Yoshiki Shimomura, Elsevier, 2017, Vol. 64, p. 351-356Conference paper (Refereed)
    Abstract [en]

    There is a trending transition for companies from offering products to solutions in order to fulfill better customer needs and to reduce environmental impact by e.g. dematerialization. This solution-based development has an associated integration of intelligent devices that contributes to increasing system complexity. The ability of systems engineering processes, methods and tools to cope with these developments is a critical factor for manufacturing companies today. Still, in many cases it is hard to find adequately trained people and sufficiently integrated development tools for complex solutions, especially in the case of small and medium sized enterprises. Often, the tangible (hardware) part of the solution is primarily developed and the intangible parts (software and services) are added on top. However, key for a successful development is to adapt and integrate all parts according to the requirements set for the solution. Thus, it is essential how requirements are worked with during systems engineering and how they influence the development of the tangible and intangible parts of the solution. The objective of this paper is to study the approach of different industrial use cases for requirements engineering in system development. The aim is to identify how practices from domains like mechanical engineering, software or service engineering can be adapted for an integrated requirements engineering for complex systems, like product-service systems.

  • 657.
    Wiktor, Mårten
    et al.
    Linköping University, Department of Management and Engineering, Environmental Technology and Management.
    Johansson, Izabelle
    Linköping University, Department of Management and Engineering, Environmental Technology and Management.
    Using LCA and LCC in Planning Industrial Symbiosis: A study of the handling of sewage sludge in Malmö, Sweden2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Sewage sludge is currently being disposed by spreading it out on fields, an action that recycles important nutrients such as phosphorus, but also leads to heavy metal contamination. With impeding regulation changes, possibly making it harder or impossible to keep current practice, waste water treatment plants are reviewing their options. One solution could be mono-incineration with phosphorus recovery. However, to make the sludge have a heating value high enough to avoid support fuel it needs to be thermally dried, which requires large amounts of heat. Moreover, large investments would have to be made, creating a more complex system than the current one. Industrial symbiosis could be the solution for making it both more economically and environmentally sustainable and possible, as it is possible to utilise waste heat for the drying, and collaborating with a waste incineration company to incinerate the sludge. Setting up an industrial symbiosis exchange is not always simple; knowing who benefits from what, and who should pay for what investment can be complicated. Moreover, it is often assumed that industrial symbiosis exchanges are environmentally sustainable, but it is not always the case.

    To better understand how costs should be allocated, and how exchanges should look to be both economically and environmentally sustainable, the methods life cycle analysis (LCA) and life cycle cost analysis (LCC) are suitable to use, as they allow a full view of the system, which can be broken down into different processes. The aim of this study is to see how LCA and LCC can be used on a planned symbiosis project to assess environmental and economical impacts. The results that were found was that using waste heat instead of primary produced heat was not necessarily better, both economically and environmentally in the categories acidification, eutrophication, and global warming potential. If the drying could take place solely during warmer months, through use of storage, then the heat could be produced through waste incineration, creating electricity to sell and replace marginal electricity. There was no clear cut answer to which scenario was better of the thirteen looked at in this study, as different scenarios were better in different categories, which proved the necessity of doing an LCA and a LCC, or similar methods. Moreover, the larger investments were not always the most profitable, even in the best economical scenario, showing the risk of unequal cost distribution. Similarly, the best scenario to avoid global warming potential involved using storage of dried sludge, increasing emissions for the one responsible for the storage, whilst decreasing emissions for incineration substantially.

    In summary, performing a LCA and a LCC on a planned symbiosis exchange can both show how different choices affect different categories, and help mitigate risks of uneven distribution of both costs and emissions.

  • 658.
    Wilewska-Bien, Magda
    et al.
    Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Göteborg, Sweden.
    Anderberg, Stefan
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Reception of sewage in the Baltic Sea: The port's role in the sustainable management of ship wastes2018In: Marine Policy, ISSN 0308-597X, E-ISSN 1872-9460, Vol. 93, p. 207-213Article in journal (Refereed)
    Abstract [en]

    In 2019, the special area requirements under MARPOL 73/78 Annex IV will come into effect in the Baltic Sea.This puts pressure on ports to develop reception facilities for sewage from passenger ships. This paper is built ona review of published information about the ports´ work to update sewage reception facilities and the results ofan e-mail questionnaire that was sent to a number of ports in the region, and interviews with environmentalmanagers from two major ports in the region. During the last 15 years, major investments have been made inport reception facilities in many passenger ports. However, there are still diverging views on the question if theport waste reception capacity in the region is sufficient. A few ports have for a long time been dominant asregards the reception of sewage in the Baltic Sea region, but recent increases in the ports´ waste receptioncapacity have predominantly occurred in smaller ports. This has been brought about by a replacement of mobilemeans for sewage collection with fixed connection systems or an increase of capacity of existing fixed connectionsystems. Following HELCOM recommendation, the majority of the ports have introduced a no-special-fee systembut there are differences in how this is applied.

    The full text will be freely available from 2020-05-09 14:13
  • 659.
    Willman, Andreas
    Linköping University, Department of Management and Engineering, Environmental Technology and Management.
    Möjligheterna för teknikkonsultföretag att bidra till positiv indirekt miljöpåverkan: En studie hur teknikkonsultföretag kan genomföra fler miljörelaterade uppdrag2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    As the environmental requirements on businesses increase from various stakeholders, the incentives for businesses to work more with environmental issues also increase. Historically, the requirements were focusing on companies with direct emissions from operations. Lately, the environmental impacts that occur indirectly as results of corporate activities have become more topical. Companies and organizations that mainly offer services often have a greater indirect than direct environmental impact. This is because they are affecting third parties, which in turn have a direct environmental impact. Technology consultancy companies are affecting the environment indirectly through their assignments and services that affect the customers' businesses or products which in turn cause environmental impact. Thus, it is interesting to study how technology consultancy companies can increase the positive indirect environmental impact. 

    The purpose of this work is to study how technology consultancy companies can increase their indirect positive impact on the environment and at the same time generate more revenue by offering environmental services. 

    Combitech is a technology consultancy company operating within many areas. Some years ago, Combitech adopted a strategy aimed at strengthening the environmental profile of the company. This has resulted in that Combitech have also launched an environmental education for all employees. Furthermore, the company has established a target implying that 10 % of all assignments towards customers will lead to environmental improvements. The objective requires that the company is accomplishing more environmental contracts with customers. However, this is not so easy for a company that traditionally has not offered environmental consulting services to any greater extent. Therefore, it is interesting for Combitech to identify the right strategy in order to sell more environmental services. This work is based on a case study that is focusing on Combitech. 

    The methods implemented to answer the purpose in this work are of qualitative kind. Literature studies were first conducted for studying previous research in the area. This was followed by document studies, interviews, and observations internally at Combitech in order to investigate the company's current situation. The major part of this work was the interview process with Combitech’s customers to examine their approach to environmental management and environmental services. Based on a benchmarking of competing companies’ environmental profiles, Combitech’s current environmental work and responses from client interviews, an analysis was made to identify what activities and actions Combitech could implement in order to sell more environmental services. Then, the results were discussed in a broader perspective in order to distinguish how much that is generalizable to other technology consultancy companies. 

    There are varying interests among customers regarding environment related issues. There is currently a great gap of knowledge and experience at Combitech regarding environment. By training the personnel within environmental related issues the competence gap will be reduced. Sellers and business developers who hold environmental expertise can help educate customers about environmental services that suit the specific client's business. Combitech should initially focus on selling environmental services to existing customers where framework agreements exists and also to the customers of smaller sizes where Combitech acting as the single or one of the few consulting firms. This is because Combitech in these situations has an advantage over competing consulting firms which may not quote without a framework agreement or that do not have existing cooperation with a customer who is Combitech’s existing customer. The key for selling more environmental related services is to offer customers tailor made services that suits the unique demand of different customers.

  • 660.
    Wolf, Anna
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Energy Systems.
    Eklund, Mats
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Söderström, Mats
    Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
    Developing integration in a local industrial ecosystem: An explorative approach2007In: Business Strategy and the Environment, ISSN 0964-4733, Vol. 16, no 6, p. 442-455Article in journal (Refereed)
    Abstract [en]

    The objective of this study is to develop and evaluate an approach for initiating development of a local industrial symbiosis network. By maintaining the broad perspective of industrial symbiosis, which includes both material and energy flow analysis, and also taking into account the internal energy use and possibilities for energy savings, we aim to achieve a better system view that avoids both sub-optimizations and unhealthy dependencies. The approach is applied to a case based on the cooperation between the forest industry, municipality and energy service company in a small town in southern Sweden. Several possibilities for improving material and energy use by increasing integration were identified. It was concluded that it is important to have a genuine knowledge of the system studied and close contact with the actors involved, since a simple analysis of energy and material flows is not sufficient to decide which solutions might be more advantageous. It is also important to have a flexible system boundary looking at the system from different perspectives and at different levels to find the best uses for existing energy and material streams.

  • 661.
    Wolf, Anna
    et al.
    Linköping University, Department of Mechanical Engineering, Energy Systems. Linköping University, The Institute of Technology.
    Eklund, Mats
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Söderström, Mats
    Linköping University, Department of Mechanical Engineering, Energy Systems. Linköping University, The Institute of Technology.
    Developing integration in a local industrial ecosystem: Human dimensionsManuscript (preprint) (Other academic)
    Abstract [en]

    The objective of this study is to evaluate the human dimensions of improving energy and material-use efficiency of a system through increased integration and exchange between local actors. The results are based on a case study of a Swedish municipality with developed forest industry. The actors' views are discussed together with the most important factors to enable increased integration and exchange to take place. The greatest barriers found were lack of knowledge and resources, attitudes, time frames, development consent, and lack of continuity and local power for some companies. One conclusion is that the municipal authority could have a role as coordinator of local integration projects. However, tius role can be impeded by the weak integration of different divisions in the municipality's organisation and it is suggested that companies with integration as their business concept can be key actors when developing more integrated networks. It was also clear that intra-organisational issues may impede inter-organisational integration.

  • 662.
    Wolf, Anna
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Energy Systems.
    Eklund, Mats
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Söderström, Mats
    Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
    Towards cooperation in industrial symbiosis: considering the importance of the human dimension2005In: Progress in Industrial Ecology – An International Journal, ISSN 1476-8917, Vol. 2, no 2, p. 185-199Article in journal (Refereed)
    Abstract [en]

    The objective of this study is to evaluate the human dimensions of improving energy and material-use efficiency of a system through increased integration and exchange between local actors. The results are based on a case study of a Swedish municipality with a developed forest industry. The actors' views are discussed together with the most important factors to enable increased integration and for exchange to take place. The greatest barriers found were the lack of knowledge and resources, attitudes, time frames, development consent, and lack of continuity and local power for some companies. One conclusion is that the municipal authority could have a role as coordinator of local integration projects. However, this role can be impeded by the weak integration of different divisions in the municipality's organisation and it is suggested that companies with integration as their business concept can be key actors when developing more integrated networks. It was also clear that intraorganisational issues may impede interorganisational integration.

  • 663.
    Zhang, Abraham
    et al.
    Auckland Univ Technol, New Zealand; Excelsia Coll, Australia; Indiana Wesleyan Univ, Australia.
    Venkatesh, V. G.
    Ecole Management Normandie, France.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Jinan Univ, Peoples R China; Univ Vaasa, Finland.
    Wan, Ming
    Jinan Univ, Peoples R China.
    Qu, Ting
    Jinan Univ, Peoples R China.
    Huisingh, Donald
    Univ Tennessee, TN USA.
    Barriers to smart waste management for a circular economy in China2019In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 240, article id UNSP 118198Article in journal (Refereed)
    Abstract [en]

    Waste management requires a new vision and drastic improvements for a transition to a zero-waste circular economy. In reality, however, many economies are producing more and more waste, which poses a serious challenge to environmental sustainability. The problem is enormously complex as it involves a variety of stakeholders, demands behavioral changes, and requires a complete rethinking of the current waste management systems and the dominant linear economic model. Smart enabling technologies can aid in a transformation of waste management toward a circular economy, but many barriers persist. This study first shortlists twelve important barriers to smart waste management in China based on interviews with experienced practitioners. It then prioritizes these barriers through a scientific prioritization technique, fuzzy Decision-Making Trial and Evaluation Laboratory (DEMATEL), based on the survey data from three representative stakeholders. It identified three key causal barriers: the lack of regulatory pressures, the lack of environmental education and culture of environmental protection, and the lack of market pressures and demands. Practical and theoretical implications were discussed based on the research results and findings. (C) 2019 Elsevier Ltd. All rights reserved.

  • 664.
    Zhang, Fanshun
    et al.
    Jinan Univ, Peoples R China.
    Cao, Cejun
    Chongqing Technol and Business Univ, Peoples R China; Tianjin Univ, Peoples R China.
    Li, Congdong
    Jinan Univ, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Jinan Univ, Peoples R China; Univ Vaasa, Finland.
    Huisingh, Donald
    Univ Tennessee, TN USA.
    A systematic review of recent developments in disaster waste management2019In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 235, p. 822-840Article, review/survey (Refereed)
    Abstract [en]

    Disaster waste management received increasing attention in recent years, but there was no review updating the evolving development after the study of Brown et al. (2011a). To explore how the topics in disaster waste management evolved in recent years and to analyze whether the gaps identified by Brown et al. (2011a) are covered, 82 papers published from 2011 to 2019 were selected from the Scopus database based on the defined process and criteria. This paper systematically examines the disaster waste management research from nine aspects of planning, waste, waste treatment options, environment, economics, social considerations, organizational aspects, legal frameworks and funding. The results suggested that there were no obvious changes or developments in the field of disaster waste management, although a few research gaps have been addressed, such as waste separation, waste quantities, case studies of incineration and waste to energy, direct economic effects, social considerations as well as application of GIS technology. Except for the comparative studies, future directions were suggested by the gaps that persist since Brown et al. (2011a) and the new gaps that were identified in this review. (C) 2019 Elsevier Ltd. All rights reserved.

  • 665.
    Zhang, Kai
    et al.
    Jinan Univ, Peoples R China.
    Qu, Ting
    Jinan Univ, Peoples R China.
    Zhou, Dajian
    Guangdong Univ Technol, Peoples R China.
    Thurer, Matthias
    Jinan Univ, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Jinan Univ, Peoples R China.
    Nie, Duxian
    South China Agr Univ, Peoples R China.
    Li, Congdong
    Jinan Univ, Peoples R China.
    Huang, George Q.
    Jinan Univ, Peoples R China; Univ Hong Kong, Peoples R China.
    IoT-enabled dynamic lean control mechanism for typical production systems2019In: Journal of Ambient Intelligence and Humanized Computing, ISSN 1868-5137, E-ISSN 1868-5145, Vol. 10, no 3, p. 1009-1023Article in journal (Refereed)
    Abstract [en]

    The emergence and subsequent popularization of lean has been one of the most significant developments in the history of operations management. However, there is a lack of systematic theory on the control framework underlying lean production. It is therefore difficult to conduct more in-depth research on Lean theory, specifically in the context of emerging technologies as smart manufacturing or Industry 4.0. In this study, process control theory is used to re-define several major lean methods and tools. Then a Lean-Oriented Optimum-State Control Theory (L-OSCT) is proposed that integrates these lean methods and tools into optimum-state control theory. On the level of method and mechanism, we adopt a recently emerged synchronization approach to obtain global-wide leanness of a large-scale system. L-OSCT provides dynamic process control in industrial networking systems. At last, a case study in a large-size paint making company in China is used to validate the effectiveness of the approach.

  • 666.
    Zhang, Yingfeng
    et al.
    Northwestern Polytech Univ, Peoples R China.
    Liu, Sichao
    Northwestern Polytech Univ, Peoples R China; KTH Royal Inst Technol, Sweden.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Univ Vaasa, Finland.
    Yang, Haidong
    Guangdong Univ Technol, Peoples R China.
    Li, Miao
    Northwestern Polytech Univ, Peoples R China.
    Huisingh, Donald
    Univ Tennessee, TN USA.
    Wang, Lihui
    KTH Royal Inst Technol, Sweden.
    The Internet of Things enabled real-time scheduling for remanufacturing of automobile engines2018In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 185, p. 562-575Article in journal (Refereed)
    Abstract [en]

    Typical challenges that managers of remanufacturing face are composed of the lack of timely, accurate, and consistent information of remanufacturing resources. Therefore, it is difficult to implement real-time production scheduling for the shop floor. To address this problem, the authors applied the concept of the Internet of Things to the remanufacturing of automobile engines to form an Internet of Manufacturing Things environment. Under the Internet of Manufacturing Things, an identification technology for disassembled engine parts was designed, and the real-time status of the remanufacturable resources can be monitored. Based on the captured remanufacturing information, a real-time production scheduling method was developed, and a mathematical model was developed to achieve cost reduction, dynamic management of remanufacturable resources, and energy consumption decrease. To obtain an optimal solution, a Pareto-based optimization method was used. Finally, a case study was performed to analyze the effectivity of the proposed method. The results showed that the remanufacturing cost and energy consumption were reduced by 34% and 34% respectively, and the worker load rate was more balanced. These improvements can contribute to more sustainable development and greener production within the remanufacturing industry, especially for remanufacturing of automobile engines. (C) 2018 Elsevier Ltd. All rights reserved.

  • 667.
    Zhang, Yingfeng
    et al.
    Northwestern Polytech Univ, Peoples R China; Northwestern Polytech Univ, Peoples R China.
    Ma, Shuaiyin
    Northwestern Polytech Univ, Peoples R China.
    Yang, Haidong
    Guangdong Univ Technol, Peoples R China.
    Lv, Jingxiang
    Northwestern Polytech Univ, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Univ Vaasa, Finland.
    A big data driven analytical framework for energy-intensive manufacturing industries2018In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 197, p. 57-72Article in journal (Refereed)
    Abstract [en]

    Energy-intensive industries account for almost 51% of energy consumption in China. A continuous improvement in energy efficiency is important for energy-intensive industries. Cleaner production has proven itself as an effective way to improve energy efficiency and reduce energy consumption. However, there is a lack of manufacturing data due to the difficult implementation of sensors in harsh production environment, such as high temperature, high pressure, high acid, high alkali, and smoky environment which hinders the implementation of the cleaner production strategy. Thanks to the rapid development of the Internet of Things, many data can be sensed and collected in the manufacturing processes. In this paper, a big data driven analytical framework is proposed to reduce the energy consumption and emission for energy-intensive manufacturing industries. Then, two key technologies of the proposed framework, namely energy big data acquisition and energy big data mining, are utilized to implement energy big data analytics. Finally, an application scenario of ball mills in a pulp workshop of a partner company is presented to demonstrate the proposed framework. The results show that the energy consumption and energy costs are reduced by 3% and 4% respectively. These improvements can promote the implementation of cleaner production strategy and contribute to the sustainable development of energy intensive manufacturing industries. (C) 2018 Elsevier Ltd. All rights reserved.

  • 668.
    Zhang, Yingfeng
    et al.
    Northwestern Polytech University, Peoples R China.
    Ren, Shan
    Northwestern Polytech University, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering. Linköping University, Faculty of Science & Engineering. University of Vaasa, Finland.
    Sakao, Tomohiko
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Huisingh, Donald
    University of Tennessee, TN USA.
    A framework for Big Data driven product lifecycle management2017In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 159, p. 229-240Article in journal (Refereed)
    Abstract [en]

    Optimization of the process of product lifecycle management is an increasingly important objective for manufacturing enterprises to improve their sustainable competitive advantage. Originally, this approach was developed to integrate the business processes of an organization and more effectively manage and utilize the data generated during lifecycle studies. With emerging technologies, product embedded information devices such as radio frequency identification tags and smart sensors are widely used to improve the efficiency of enterprises routine management on an operational level. Manufacturing enterprises need a more advanced analysis approach to develop a solution on a strategic level from using such lifecycle Big Data. However, the application of Big Data in lifecycle faces several challenges, such as the lack of reliable data and valuable knowledge that can be employed to support the optimized decision-making of product lifecycle management. In this paper, a framework for Big Data driven product lifecycle management was proposed to address these challenges. Within the proposed framework, the availability and accessibility of data and knowledge related to lifecycle can be achieved. A case study was presented to demonstrate the proof-of-concept of the proposed framework. The results showed that the proposed framework was feasible to be adopted in industry, and can provide an overall solution for optimizing the decision-making processes in different phases of the whole lifecycle. The key findings and insights from the case study were summarized as managerial implications, which can guide manufacturers to ensure improvements in energy saving and fault diagnosis related decisions in the whole lifecycle. (C) 2017 Elsevier Ltd. All rights reserved.

  • 669.
    Zhang, Yingfeng
    et al.
    Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Shaanxi, PR China.
    Ren, Shan
    Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Shaanxi, PR China; Department of Mechanical Engineering, Honghe University, Yunnan, PR China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Department of Production, University of Vaasa, Vaasa, Finland.
    Si, Shubin
    Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, Northwestern Polytechnical University, Shaanxi, PR China.
    A big data analytics architecture for cleaner manufacturing and maintenance processes of complex products2017In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 142, no 2, p. 626-641Article in journal (Refereed)
    Abstract [en]

    Cleaner production (CP) is considered as one of the most important means for manufacturing enterprises to achieve sustainable production and improve their sustainable competitive advantage. However, implementation of the CP strategy was facing barriers, such as the lack of complete data and valuable knowledge that can be employed to provide better support on decision-making of coordination and optimization on the product lifecycle management (PLM) and the whole CP process. Fortunately, with the wide use of smart sensing devices in PLM, a large amount of real-time and multi-source lifecycle big data can now be collected. To make better PLM and CP decisions based on these data, in this paper, an overall architecture of big data-based analytics for product lifecycle (BDA-PL) was proposed. It integrated big data analytics and service-driven patterns that helped to overcome the above-mentioned barriers. Under the architecture, the availability and accessibility of data and knowledge related to the product were achieved. Focusing on manufacturing and maintenance process of the product lifecycle, and the key technologies were developed to implement the big data analytics. The presented architecture was demonstrated by an application scenario, and some observations and findings were discussed in details. The results showed that the proposed architecture benefited customers, manufacturers, environment and even all stages of PLM, and effectively promoted the implementation of CP. In addition, the managerial implications of the proposed architecture for four departments were analyzed and discussed. The new CP strategy provided a theoretical and practical basis for the sustainable development of manufacturing enterprises.

  • 670.
    Zhang, Yingfeng
    et al.
    Northwestern Polytech University, Peoples R China; Northwestern Polytech University, Peoples R China.
    Zhang, Geng
    Northwestern Polytech University, Peoples R China.
    Qu, Ting
    Jinan University, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Jinan University, Peoples R China; University of Vaasa, Finland.
    Zhong, Ray Y.
    University of Auckland, New Zealand.
    Analytical target cascading for optimal configuration of cloud manufacturing services2017In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 151, p. 330-343Article in journal (Refereed)
    Abstract [en]

    Combining with advanced technologies (e.g., cloud computing, Internet of Things, and service-oriented technology), cloud manufacturing was proposed and gained wide attention. By managing a huge amount of distributed and idle manufacturing resources to meet various manufacturing requirements, cloud manufacturing provides sustainable means for promoting cleaner production. Manufacturing service configuration plays an important role in implementing cloud manufacturing. Most research adopted central optimization methods to get optimal service configuration results. However, these all-in-one methods with an individual decision model can hardly maintain the autonomous decision rights of different service providers. Consequently, service providers may lose their flexibility to achieve private decision objectives, which is unfavorable for keeping the sustainable competitive advantages of enterprises. In this paper, a decentralized decision mechanism named analytical target cascading is introduced to solve the manufacturing service configuration problem. An analytical target cascading model for the manufacturing service configuration problem is proposed based on the hierarchical structure of cloud manufacturing system. Elements in the proposed model are formulated and solved in a loose coupling and distributed manner. The situation when alternative service providers owned autonomous decision rights to configure their respective upstream manufacturing stages is also considered. A case study is employed to verify the effectiveness of analytical target cascading in solving the manufacturing service configuration problem. It shows that analytical target cascading can not only obtain the same manufacturing service configuration results as central optimization method but also maintain the autonomous decision rights of different service providers. (C) 2017 Elsevier Ltd. All rights reserved.

  • 671.
    Zhang, Yongping
    et al.
    School of Automation Science and Electrical Engineering, Beihang University, 12633 Beijing China.
    Tao, Fei
    School of Automation Science and Electrical Engineering, Beihang University, 12633 Beijing China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Zhang, Pengyuan
    School of Automation Science and Electrical Engineering, Beihang University, Beijing China.
    Cheng, Ying
    School of Automation Science and Electrical Engineering, Beihang University, Beijing China.
    Zuo, Ying
    School of Automation Science and Electrical Engineering, Beihang University, Beijing China.
    Long/short-term utility aware optimal selection of manufacturing service composition towards Industrial Internet platform2019In: IEEE Transactions on Industrial Informatics, ISSN 1551-3203, E-ISSN 1941-0050, Vol. 15, no 6, p. 3712-3722Article in journal (Refereed)
    Abstract [en]

    As numerous Industrial Internet platforms emerge, manufacturing services are shared among multiple stakeholders more frequently than ever. The optimal selection of shared manufacturing service composition (MSC) should both promise the task completion and the stakeholders’ satisfaction. However, as commercial entities, stakeholders concentrate on not only the temporary benefits but also the long-term acquisitions. Most of the existing MSC problems neglect the stakeholders’ prospect on the manufacturing service sharing. This leads to the disappointment and dissatisfaction of the stakeholders with long-term expectations, who will abandon the participation in Industrial Internet platform. Therefore, the long/short-term preferences of various stakeholders should be satisfied and balanced. In this paper, the long/short-term preferences of three sides (provider, consumer, and operator) are discussed. And the models considering short-term utility of a consumer and long-term utility of providers, are established. The potential tasks assigned to providers are taken into account to estimate the long-term utility if the current task is accepted. Then, to solve the bi-objective optimization problem, an improved Non-dominated Sorting Genetic Algorithm-II algorithm, combining Tabu search and improved K-means mechanism, is proposed to find the optimal solution set. Finally, the effectiveness of the method is verified by the experimental results in terms of solution diversity, astringency and stability, in which a finding is further observed that the changes of consumers’ preferences have little impact on the long-term utility of providers.

  • 672.
    Zhang, Yongping
    et al.
    Beihang Univ, Peoples R China.
    Zhang, Pengyuan
    Beihang Univ, Peoples R China.
    Tao, Fei
    Beihang Univ, Peoples R China.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering. Univ Vaasa, Finland.
    Zuo, Ying
    Beihang Univ, Peoples R China.
    Consensus aware manufacturing service collaboration optimization under blockchain based Industrial Internet platform2019In: Computers & industrial engineering, ISSN 0360-8352, E-ISSN 1879-0550, Vol. 135, p. 1025-1035Article in journal (Refereed)
    Abstract [en]

    To realize collaboration among distributed enterprises, manufacturing service collaboration on Industrial Internet platform is an efficient method. However, the low degree of participation resulted by the sense of distrust, dissatisfaction, and insecurity hinders the widely application of Industrial Internet platform. Therefore, a secure, trustworthy, and multi-user satisfied manufacturing service collaboration method is in urgent need. A blockchain based platform could be utilized to support collaboration among distributed participants to complete trustworthy transactions. In addition, in order to satisfy multiple users, there should be a suitable collaboration mechanism that allows interest-independent participants to fulfil their short/long-term expectations and guide them to a consensus. Based on the establishment of the underlying data and network layer of the blockchain, the collaboration optimization of manufacturing services based on consensus is proposed. By utilizing Memetic algorithm, both the long-term utility of providers and the short-term utility of consumers are combined to choose the optimal providers for the tasks. The providers are selected with higher satisfaction degree of consumers.

  • 673.
    Zheng, Pai
    et al.
    Nanyang Technol Univ, Singapore.
    Liu, Yang
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    Tao, Fei
    Beihang Univ, Peoples R China.
    Wang, Zuoxu
    Nanyang Technol Univ, Singapore.
    Chen, Chun-Hsien
    Nanyang Technol Univ, Singapore.
    Smart Product-Service Systems Solution Design via Hybrid Crowd Sensing Approach2019In: IEEE Access, E-ISSN 2169-3536, Vol. 7, p. 128463-128473Article in journal (Refereed)
    Abstract [en]

    The third wave of information technology (IT) competition has enabled one promising value co-creation proposition, Smart PSS (smart product-service systems). Manufacturing companies offer smart, connected products with various e-services as a solution bundle to meet individual customer satisfaction, and in return, collect and analyze usage data for evergreen design purposes in a circular manner. Despite a few works discussing such value co-creation business mechanism, scarcely any has been reported from technical aspect to realizing this data-driven manufacturer/service provider-customer interaction cost-effectively. To fill this gap, a novel hybrid crowd sensing approach is proposed, and adopted in the Smart PSS context. It leverages large-scale mobile devices and their massive user-generated/product-sensed data, and converges with reliable static sensing nodes and other data sources in the smart, connected environment for value generation. Both the proposed hybrid crowd sensing conceptual framework and its systematic information modeling process are introduced. An illustrative example of smart water dispenser maintenance service design is given to validate its feasibility. The result shows that the proposed approach can be a promising manner to enable value co-creation process cost-effectively.

  • 674.
    Ziels, Ryan M.
    et al.
    Department of Civil Engineering, The University of British Columbia, Vancouver, BC, Canada.
    Svensson, Bo H
    Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Linköping University, Biogas Research Center.
    Sundberg, Carina
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Arts and Sciences.
    Larsson, Madeleine
    Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Linköping University, Biogas Research Center.
    Karlsson, Anna
    Scandinavian Biogas Fuels AB, Stockholm, Sweden.
    Shakeri Yekta, Sepehr
    Linköping University, Department of Thematic Studies, Tema Environmental Change. Linköping University, Faculty of Arts and Sciences. Linköping University, Biogas Research Center.
    Microbial rRNA gene expression and co-occurrence profiles associate with biokinetics and elemental composition in full-scale anaerobic digesters2018In: Microbial Biotechnology, ISSN 1751-7907, E-ISSN 1751-7915, Vol. 11, no 4, p. 694-709Article in journal (Refereed)
    Abstract [en]

    This study examined whether the abundance and expression of microbial 16S rRNA genes were associated with elemental concentrations and substrate conversion biokinetics in 20 full-scale anaerobic digesters, including seven municipal sewage sludge (SS) digesters and 13 industrial codigesters. SS digester contents had higher methane production rates from acetate, propionate and phenyl acetate compared to industrial codigesters. SS digesters and industrial codigesters were distinctly clustered based on their elemental concentrations, with higher concentrations of NH3-N, Cl, K and Na observed in codigesters. Amplicon sequencing of 16S rRNA genes and reverse-transcribed 16S rRNA revealed divergent grouping of microbial communities between mesophilic SS digesters, mesophilic codigesters and thermophilic digesters. Higher intradigester distances between Archaea 16S rRNA and rRNA gene profiles were observed in mesophilic codigesters, which also had the lowest acetate utilization biokinetics. Constrained ordination showed that microbial rRNA and rRNA gene profiles were significantly associated with maximum methane production rates from acetate, propionate, oleate and phenyl acetate, as well as concentrations of NH3-N, Fe, S, Mo and Ni. A co-occurrence network of rRNA gene expression confirmed the three main clusters of anaerobic digester communities based on active populations. Syntrophic and methanogenic taxa were highly represented within the subnetworks, indicating that obligate energy-sharing partnerships play critical roles in stabilizing the digester microbiome. Overall, these results provide new evidence showing that different feed substrates associate with different micronutrient compositions in anaerobic digesters, which in turn may influence microbial abundance, activity and function.

  • 675.
    Ödling, Mattias
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, Faculty of Science & Engineering.
    How Provider Value is Perceived in regards to Integrated Product Service Offerings and why: A case study2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    As companies grow larger and become more international, it is likely that it comes to a point where it would be cheaper to produce on site, or at least have distribution centers, rather than having a centralized production that requires long range shipping. As this occurs, there is a wide range of challenges that the company must face, however these challenges are by now well documented and while not to be underestimated and called “easy” it is nothing new as a wide range of companies have done it before. One aspect that however is less known is the influence that external differences has, in other words factors that would produce a differing result even with the exact same internal setup, on the perceived aspects (referred to as Values in this work) from the providers point of view. In particular what is interesting is the perceived positive impacts above expectations that is gained from having external differences. To be able to better understand and quantify this impact the term “Provider Value” has been created and is being researched towards understanding what Values exist and how they are being affected.Provider Value (PV) is a cutting edge concept within eco-design research that this work is based on and in particular ProVa – Provider Value Evaluation for Integrated Product Service Offerings (Matschewsky et al. 2015) is the latest step to date towards creating the tools needed to increase the utilization, and reap the benefits, of PVs. Another interesting and relevant aspect to PV is how Product/Service System (PSS) could be an essential part in paving a new way of avoiding increased environmental impact while having economic growth. This is done by adding services on top of already existing products (Sakao et al. 2009).To find out more about what kind of external factors that might be behind the differences a case study was conducted, interviewing employees at two companies within one concern in Sweden and Japan. The results of this work indicates that if the company want its PVs to remain the same the main obstacle is external economic differences. In this particular study it is also clear that differences in business model and company structure has a big impact. With all the discussion regarding environment it was on a surprisingly low level of interest at both companies and what mattered was that the products cleared the minimum requirements, nothing more, as “any additional return is hard to estimate”. If PV keeps growing and tools are made to assist, this could not only help simplify the transitioning to other countries and help utilizing existing Values from the start, it could also increase the utilization in general, in particularly in regards to the Environment.

  • 676.
    Ölundh Sandström, Gunilla
    et al.
    KTH, Stockholm, Sweden.
    Janhager, Jenny
    KTH, Stockholm, Sweden.
    Öhrwall Rönnbäck, Anna
    Linköping University, Department of Management and Engineering, Industrial Economics. Linköping University, The Institute of Technology.
    Lindahl, Mattias
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Sakao, Tomohiko
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Managing Innovation Processes for a Business-Driven Collaborative Network to Export Total Technical Solutions2008In: ISPIM Innovation Symposium, 2008, Singapore: ISPIM , 2008Conference paper (Other academic)
    Abstract [en]

    There is a large need of environmental solutions at developing countries, where a network of small firms, e.g. in Sweden, have much opportunity for their business. This paper discusses, from both theoretical and from practical aspects, the high degree of complexity that needs to be managed when small firms export environmental-technology innovation to emerging markets. Especially, it deals with how a network of firms should manage its innovation processes. Based on the review of some 50 literature, the paper explains the methodologies adopted in an on-going project to study these issues. Discussions include differences with development of an integration of products/services within a single firm.

  • 677.
    Österberg, Ouliana
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Kartläggning av en fastighets miljöpåverkan: Livscykelanalys av flerfamiljsfastigheten "Teodoliten"2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Today's climate and environmental issues have now been up for discussion for quite long. Various environmental measures have been taken, but it is not always certain that those measures actually are for the better because of the complexity of our environment. Therefore, studies of whole life cycles are very important even if they are time and resource intensive.

    Real estate accounts for 15% of global carbon emissions, but also affects our environment in many other aspects. In Sweden this number is even higher. About 30 % of its carbon dioxide emissions originates from building sector and changes are therefore of great importance. ByggVesta is a real estate company that wants to be at the forefront when it comes to eco-smart construction and wanted to know how well they are doing. It was therefore desired to conduct this LCA that reviewed their (by February 2012) newest completed property "Teodoliten" in Farsta, Stockholm.

    This life cycle assessment was a screening LCA i.e. it was carried out very superficially in order to identify the biggest polluters. All results were related to the functional unit of 1m2 floor area and year. It was found that the maintenance phase was the most pollutant one because of use of electricity and water. Here it can be mentioned that the electricity consumption is of Swedish electricity mix-type, which is much cleaner than many of the European mixes. It is therefore possible that the results may have been different if Teodoliten had been placed at another location.

    Among all the materials in the property, it was found that concrete elements were the worst pollutants. This report has, however, showed that the longer expected life time, the better this concrete frame is in comparison to wooden frame. If the property will be standing for 100 years, it will emit 95 % of the carbon dioxide- eqv. compared to a wooden frame that stands for only 60 years (the amount that is feasible for a wooden framed house). Although the climate aspect is the most focused one, the other environmental aspects show more clearly the benefits of concrete in long time perspective.

    ByggVesta has also been criticized for their shipments of concrete over the Baltic Sea. However, it has been shown that the transport with a cargo ship corresponds to only 23km by truck. Transport itself is therefore not considered to be a major subject for criticism. Latvian concrete production is of greater interest since the manufacturing process there might differ a lot from Swedish production and have other impact on environment. This issue could not be considered within the scope of this work.

    Shortly, this analysis shows that concrete frames and transportation with cargo ship is preferable if a building like Teodoliten is considered, with its geographical location and if its lifetime will last for 100 years as ByggVesta predicts. However, to be fully sure of the accuracy of these results it might be good to conduct a full comparative LCA on construction materials.

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