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Karlsson, Magnus
Publications (10 of 85) Show all publications
Gustafsson, M., Cruz, I., Svensson, N. & Karlsson, M. (2020). Scenarios for upgrading and distribution of compressed and liquefied biogas: Energy, environmental, and economic analysis. Journal of Cleaner Production, 256, Article ID 120473.
Open this publication in new window or tab >>Scenarios for upgrading and distribution of compressed and liquefied biogas: Energy, environmental, and economic analysis
2020 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 256, article id 120473Article in journal (Refereed) Published
Abstract [en]

In the transition towards fossil-free transports, there is an increasing interest in upgraded biogas, or biomethane, as a vehicle fuel. Liquefied biogas has more than twice as high energy density as compressed biogas, which opens up the opportunity for use in heavy transports and shipping and for more efficient distribution. There are several ways to produce and distribute compressed and liquefied biogas, but very few studies comparing them and providing an overview. This paper investigates the energy balance, environmental impact and economic aspects of different technologies for upgrading, liquefaction and distribution of biogas for use as a vehicle fuel. Furthermore, liquefaction is studied as a method for efficient long-distance distribution.

The results show that the differences between existing technologies for upgrading and liquefaction are small in a well-to-tank perspective, especially if the gas is transported over a long distance before use. Regarding distribution, liquefaction can pay back economically after 25–250 km compared to steel container trailers with compressed gas, and reduce the climate change impact after 10–30 km. Distribution in gas grid is better in all aspects, given that it is available and no addition of propane is required. Liquefaction can potentially expand the geographical boundaries of the market for biogas as a vehicle fuel, and cost reductions resulting from technology maturity allow cost-effective liquefaction even at small production capacities.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Biogas, Biomethane, Liquefaction, Energy balance, Environmental analysis, Economic analysis
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-163605 (URN)10.1016/j.jclepro.2020.120473 (DOI)2-s2.0-85079198070 (Scopus ID)
Projects
Biogas Research Center
Funder
Swedish Energy Agency, 35624-3
Available from: 2020-02-17 Created: 2020-02-17 Last updated: 2020-03-13Bibliographically approved
Feiz, R., Ammenberg, J., Björn, A., Yufang, G., Karlsson, M., Liu, Y., . . . Zhang, F. (2019). Biogas Potential for Improved Sustainability in Guangzhou, China: A Study Focusing on Food Waste on Xiaoguwei Island. Sustainability, 11(6)
Open this publication in new window or tab >>Biogas Potential for Improved Sustainability in Guangzhou, China: A Study Focusing on Food Waste on Xiaoguwei Island
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2019 (English)In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, no 6Article in journal (Refereed) Published
Abstract [en]

As a result of rapid development in China and the growth of megacities, large amounts of organic wastes are generated within relatively small areas. Part of these wastes can be used to produce biogas, not only to reduce waste-related problems, but also to provide renewable energy, recycle nutrients, and lower greenhouse gases and air polluting emissions. This article is focused on the conditions for biogas solutions in Guangzhou. It is based on a transdisciplinary project that integrates several approaches, for example, literature studies and lab analysis of food waste to estimate the food waste potential, interviews to learn about the socio-technical context and conditions, and life-cycle assessment to investigate the performance of different waste management scenarios involving biogas production. Xiaoguwei Island, with a population of about 250,000 people, was chosen as the area of study. The results show that there are significant food waste potentials on the island, and that all studied scenarios could contribute to a net reduction of greenhouse gas emissions. Several socio-technical barriers were identified, but it is expected that the forthcoming regulatory changes help to overcome some of them.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
biogas, food waste, system study, biomethane potential, socio-technical study, megacities, China, Guangzhou city, Xiaoguwei Island
National Category
Environmental Engineering Energy Systems Environmental Management
Identifiers
urn:nbn:se:liu:diva-155110 (URN)10.3390/su11061556 (DOI)000465613000051 ()
Note

Funding agencies: Linkoping University-Guangzhou University Research Center on Urban Sustainable Development by Guangzhou City; Training Program for Excellent Young Teachers in Guangdong Universities [YQ2015125]

Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-11-27Bibliographically approved
Lawrence, A., Nehler, T., Andersson, E., Karlsson, M. & Thollander, P. (2019). Drivers, barriers and success factors for energy management in the Swedish pulp and paper industry. Journal of Cleaner Production, 223, 67-82
Open this publication in new window or tab >>Drivers, barriers and success factors for energy management in the Swedish pulp and paper industry
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2019 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 223, p. 67-82Article in journal (Refereed) Published
Abstract [en]

Research has revealed the existence of an energy-efficiency gap – the difference between optimal and actual energy end-use, suggesting that energy efficiency can be improved. Energy management (EnM) is a means for improving industrial energy efficiency. However, due to various barriers, the full potential of EnM is not realised. Several studies have addressed drivers and barriers to energy efficiency but few to EnM. This study aims to identify EnM practices, the most important perceived drivers and barriers for EnM, and relations among them in the energy-intensive Swedish pulp and paper industry (PPI), which has the longest experience internationally of practising EnM systems, and has worked according to the standards since 2004. Our results show that, altogether, the PPI works regularly and continuously with EnM, with a clear division of responsibilities. The highest maturity for EnM practices was for energy policy, followed by organization, investments, and performance measurement. The study also shows that communication between middle management and operations personnel has potential for improvement. The most important categories of drivers were economic, whereas for barriers they were organizational. Nevertheless, knowledge-related barriers and drivers were amongst the most important, suggesting that the absorptive capacity for energy issues could be improved.

Keywords
Barriers, Drivers, Success factors, Energy management, Energy efficiency, Pulp and paper industry
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-156271 (URN)10.1016/j.jclepro.2019.03.143 (DOI)000466253100008 ()
Note

Funding agencies: Swedish Energy Agency [2015-002143]; Swedish Environmental Protection Agency, Carbonstruct research project [802-0082-17]

Available from: 2019-04-10 Created: 2019-04-10 Last updated: 2020-04-01
Lawrence, A., Karlsson, M., Nehler, T. & Thollander, P. (2019). Effects of monetary investment, payback time and firm characteristics on electricity saving in energy-intensive industry. Applied Energy, 240, 499-512
Open this publication in new window or tab >>Effects of monetary investment, payback time and firm characteristics on electricity saving in energy-intensive industry
2019 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 240, p. 499-512Article in journal (Refereed) Published
Abstract [en]

Our study looked at the extent to which firm characteristics such as total firm capital affect electricity saving in energy-intensive industry in Sweden from 2007 to 2015. Specifically, the most influential variables for systematic variation in electricity saving in the energy-intensive companies participating in Sweden’s voluntary programme for improving energy efficiency in energy-intensive industry (the PFE) were studied by analysing monetary investment, payback time and firm characteristics. Monetary investment and payback time influenced electricity savings during the PFE more than firm characteristics, with monetary investment being most influential. Nevertheless, the total systematic variation in firm characteristics may account for ∼16% of the systematic variation in electricity saving, where ∼74% (32 of 43) of the studied firm characteristics seemed to merit further investigation and where ∼49% (21 of 43) of firm characteristics appeared most influential. The most influential firm characteristics were total firm capital, stock turnover ratio, machinery, short-term liabilities per turnover ratio and goodwill. The overall results showed that firm characteristics can influence a firm’s energy-saving activities and indicated a tendency for more energy savings in companies that were financially weaker or had done less work to improve energy efficiency prior to the PFE.

Place, publisher, year, edition, pages
Aldring og helse, 2019
Keywords
Energy efficiency, Energy saving, Energy intensive industry, Energy management, Firm characteristics, Voluntary agreement
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-156280 (URN)10.1016/j.apenergy.2019.02.060 (DOI)000468714300036 ()
Note

Funding agencies:  Swedish Energy Agency

Available from: 2019-04-11 Created: 2019-04-11 Last updated: 2020-04-01
Thollander, P., Karlsson, M., Rohdin, P. & Rosenqvist, J. (2019). Energieffektivisering: Energikartläggning, energiledning och styrmedel (1:1ed.). Lund: Studentlitteratur AB
Open this publication in new window or tab >>Energieffektivisering: Energikartläggning, energiledning och styrmedel
2019 (Swedish)Book (Other academic)
Abstract [sv]

Effektiv energianvändning i svensk tillverkningsindustri är en nyckelfaktor för att svenska företag, branscher och industrin som helhet även fortsättningsvis ska vara konkurrenskraftiga på en global marknad med knappare resurser. Denna bok är ett led i den riktningen.



Boken är uppdelad i tre delar: Del I har sin utgångspunkt i energi­effektiviseringsgapet och fokuserar på energikartläggning och energieffektivisering av företag, framför allt ur ett tekniskt perspektiv. Del II har sin utgångspunkt i energiledningsgapet och fokuserar på energiledning samt hinder och incitament för energieffektivisering i svensk tillverkningsindustri. Del III har sin utgångspunkt i styrmedelsgapet och inriktas mot styrmedel för energieffektivisering och hur dessa kan designas, implementeras och utvärderas. 


De två första delarna riktar sig framför allt till studenter vid svenska läro­­säten samt till energi- och miljöansvariga, teknikkonsulter, kommunala tillsynstjänstemän och andra offentliga aktörer vid exempelvis regionala energikontor. Del III riktar sig i första hand till aktörer som administrerar och ansvarar för styrmedel på nationell, regional och lokal nivå. Denna del kan även vara till nytta för koncerner som vill ta ett helhetsgrepp på energifrågan samt till företag som vill minska energianvändningens negativa miljöpåverkan i hela värdekedjan, inklusive underleverantörer.

Place, publisher, year, edition, pages
Lund: Studentlitteratur AB, 2019. p. 248 Edition: 1:1
Keywords
Energikartläggning, energiledning, styrmedel, industri, energianvändning, hinder och drivkrafter, energiprogram, enhetsprocess, energilära
National Category
Energy Engineering
Identifiers
urn:nbn:se:liu:diva-156662 (URN)9789144092478 (ISBN)
Available from: 2019-05-06 Created: 2019-05-06 Last updated: 2019-05-06Bibliographically approved
Johnsson, S., Andersson, E., Thollander, P. & Karlsson, M. (2019). Energy savings and greenhouse gas mitigation potential in the Swedish wood industry. Energy, 187, Article ID 115919.
Open this publication in new window or tab >>Energy savings and greenhouse gas mitigation potential in the Swedish wood industry
2019 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 187, article id 115919Article in journal (Refereed) Published
Abstract [en]

Improving energy efficiency in industry is recognized as one of the most crucial actions for mitigating climate change. The lack of knowledge regarding energy end-use makes it difficult for companies to know in which processes the highest energy efficiency potential is located. Using a case study design, the paper provides a taxonomy for energy end-use and greenhouse gas (GHG) emissions on a process and energy carrier level. It can be seen that drying of wood is the largest energy using and GHG emitting process in the studied companies. The paper also investigates applied and potentially viable energy key performance indicators (KPIs). Suggestions for improving energy KPIs within the wood industry include separating figures for different wood varieties and different end-products and distinguishing between different drying kiln technologies. Finally, the paper presents the major energy saving and carbon mitigating measures by constructing conservation supply curves and marginal abatement cost curves. The energy saving potential found in the studied companies indicates that significant improvements might be achieved throughout the Swedish wood industry. Even though the scope of this paper is the Swedish wood industry, several of the findings are likely to be relevant in other countries with a prominent wood industry.

Place, publisher, year, edition, pages
Elsevier, 2019
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-160259 (URN)10.1016/j.energy.2019.115919 (DOI)000496334500068 ()2-s2.0-85071357226 (Scopus ID)
Note

Funding agencies: Swedish Agency for Marine and Water Management [802-0082-17]; Swedish Environmental Protection Agency

Available from: 2019-09-13 Created: 2019-09-13 Last updated: 2019-12-09Bibliographically approved
Gustafsson, M., Cruz, I., Svensson, N. & Karlsson, M. (2019). Technologies for production of liquefied biogas for heavy transports: Energy, environmental, and economic analysis. In: : . Paper presented at Nordic Biogas Conference.
Open this publication in new window or tab >>Technologies for production of liquefied biogas for heavy transports: Energy, environmental, and economic analysis
2019 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

The heavy transport sector is facing a growth within technology and infrastructure for use of natural gas. This opens an opportunity for the biogas market to grow as well, especially in the form of liquefied biogas (LBG). This study presents an investigation of the energy balance, environmental impact and economic aspects of current technologies for production of LBG: mixed refrigerant cycle, nitrogen cycle, pressure reduction and cryogenic liquefaction. Calculations are based on a review of recent literature and data from the biogas industry. The results show that mixed refrigerant cycle is the most economic and energy efficient technology for liquefaction of upgraded biogas, followed by nitrogen cycle. The lowest electricity use and environmental impact is achieved if the liquefaction process is preceded by amine scrubber upgrading. Pressure reduction liquefaction is inexpensive and can be an alternative in areas connected to a high-pressure gas grid, but as a method for liquefaction it is not very efficient as only about 10% of the incoming gas is liquefied and the rest remains in its gaseous form. Moreover, addition of propane for distribution in the natural gas grid increases the environmental impact compared to other distribution pathways. The cryogenic technology has a higher energy use than other liquefaction technologies but compensates by also including CO₂ separation, which could make it suitable if there is no existing upgrading facility in place. However, there are technical difficulties to overcome and it is not widely implemented.

Keywords
Biogas, Liquefaction, Energy balance, Environmental analysis, Economic analysis
National Category
Energy Engineering
Identifiers
urn:nbn:se:liu:diva-160215 (URN)
Conference
Nordic Biogas Conference
Projects
BRC - Biogas Research Center
Funder
Swedish Energy Agency
Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2019-09-18
Johansson, M., Haraldsson, J. & Karlsson, M. (2018). Energy efficient supply chain of an aluminium product in Sweden – What can be done in-house and between the companies?. In: Therese Laitinen Lindström, Ylva Blume & Nina Hampus (Ed.), eceee 2018 Industrial Summer Study proceedings: . Paper presented at Industrial Efficiency 2018: Leading the low-carbon transition, Berlin June 11-13, 2018 (pp. 369-377). Stockholm, Sweden: European Council for an Energy Efficient Economy (ECEEE)
Open this publication in new window or tab >>Energy efficient supply chain of an aluminium product in Sweden – What can be done in-house and between the companies?
2018 (English)In: eceee 2018 Industrial Summer Study proceedings / [ed] Therese Laitinen Lindström, Ylva Blume & Nina Hampus, Stockholm, Sweden: European Council for an Energy Efficient Economy (ECEEE), 2018, p. 369-377Conference paper, Published paper (Refereed)
Abstract [en]

According to the Energy Efficiency Directive executed by the European Union, each member state is obliged to set a national target on energy efficiency. This requirement constitutes the basis for governments to formulate policy measures directed towards industrial companies. Such policy measures, along with the demand for cost-effective production to remain competitive on the market, motivates industrial companies to improve their energy efficiency. The aluminium industry is energy intensive and consumes substantial amounts of electricity and fossil fuels, resulting in both direct and indirect greenhouse gas emissions. This paper presents a study of the production of an aluminium product in Sweden in terms of implemented energy efficiency measures in the supply chain and potential areas for further improvement. Most previous studies have focused on energy efficiency measures in individual companies (value chains). However, this paper presents and analyses energy efficiency measures not only in each individual company but also in the entire supply chain of the product. The supply chain studied starts with secondary aluminium production followed by the production of a part of an automobile motor and ends with installing the motor detail in a car. Empirical data were gathered through a questionnaire and a focus group. The study shows the great potential for further energy efficiency improvements in the value chains of each individual company and in the whole supply chain. The work shown here is a part of a larger research project performed in close cooperation with the Swedish aluminium industry.

Place, publisher, year, edition, pages
Stockholm, Sweden: European Council for an Energy Efficient Economy (ECEEE), 2018
Series
eceee Industrial Summer Study Proceedings, ISSN 2001-7979, E-ISSN 2001-7987
Keywords
Value chain, Supply chains, Aluminium industry
National Category
Energy Systems Manufacturing, Surface and Joining Technology Environmental Management Metallurgy and Metallic Materials
Identifiers
urn:nbn:se:liu:diva-148803 (URN)978-91-983878-2-7 (ISBN)978-91-983878-3-4 (ISBN)
Conference
Industrial Efficiency 2018: Leading the low-carbon transition, Berlin June 11-13, 2018
Funder
Swedish Energy Agency, 40552-1
Available from: 2018-06-25 Created: 2018-06-25 Last updated: 2018-06-26
Andersson, E., Karlsson, M., Thollander, P. & Paramonova, S. (2018). Energy end-use and efficiency potentials among Swedish industrial small and medium-sized enterprises - A dataset analysis from the national energy audit program. Renewable & sustainable energy reviews, 93, 165-177
Open this publication in new window or tab >>Energy end-use and efficiency potentials among Swedish industrial small and medium-sized enterprises - A dataset analysis from the national energy audit program
2018 (English)In: Renewable & sustainable energy reviews, ISSN 1364-0321, E-ISSN 1879-0690, Vol. 93, p. 165-177Article, review/survey (Refereed) Published
Abstract [en]

Improving energy efficiency in industry is recognized as one of the most vital activities for the mitigation of climate change. Consequently, policy initiatives from governments addressing both energy-intensive and small and medium-sized industry have been enacted. In this paper, the energy end-use and the energy efficiency potential among industrial small and medium-sized companies participating in the Swedish Energy Audit Program are reviewed. The three manufacturing industries of wood and cork, food products and metal products (excluding machinery and equipment) are studied. A unique categorization of their production processes energy end-use is presented, the results of which show that the amount of energy used in various categories of production processes differ between these industries. This applies to support processes as well, highlighting the problem of generalizing results without available bottom-up energy end-use data. In addition, a calculation of conservation supply curves for measures related to production processes is presented, showing that there still remains energy saving potential among companies participating in the Swedish Energy Audit Program. However, relevant data in the database used from the Swedish Energy Audit Program is lacking which limits the conclusions that can be drawn from the conservation supply curves. This study highlights the need to develop energy policy programs delivering high-quality data. This paper contributes to a further understanding of the intricate matters of industrial energy end-use and energy efficiency measures.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD, 2018
Keywords
Energy end-use; Conservation supply curves; Energy efficiency; Industrial energy efficiency; Energy efficiency measures
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-151181 (URN)10.1016/j.rser.2018.05.037 (DOI)000440966900013 ()
Note

Funding Agencies|Swedish Environmental Protection Agency [802-0082-17]; Swedish Energy Agency [40537-1]

Available from: 2018-09-17 Created: 2018-09-17 Last updated: 2019-10-17Bibliographically approved
Waldemarsson, M., Lidestam, H. & Karlsson, M. (2017). How energy price changes can affect production- and supply chain planning – A case study at a pulp company. Applied Energy, 203, 333-347
Open this publication in new window or tab >>How energy price changes can affect production- and supply chain planning – A case study at a pulp company
2017 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 203, p. 15p. 333-347Article in journal (Refereed) Published
Abstract [en]

The process industry in general is very energy-intensive, and therefore models focusing on energy can be very important in order to reach higher profitability. In this study, an optimization model of the supply chain in a pulp company, where energy is included with respect to its revenue generating capabilities, is used. Using real company data, and through an analysis of the model’s results, we show that higher profitability can be achieved when integrating energy into the planning process. Our findings show that when energy-intensive raw materials not only provide fibre to the pulp process but also generate an energy surplus, there is room for different planning approaches in order to maximize the total profit. This paper reveals promising changes that can be made for improving the current planning process. The scenarios considered involve market changes for energy demand and price, and also alternative production opportunities. A cross-analysis compares the scenarios in order to reveal additional relations that are important to consider. Depending on a price change of energy, the model prioritizes in its selection of pulp products to produce. From this we provide guidelines on where and when to increase or decrease pulp production. The model shows that the company can increase its total profit no matter which of the included energy parameters that increase in price. The paper contributes to previous research by enhancing the usefulness of this model for not only the case company as such, but also by illustrating and describing how the approach applied can be useful for other cases within the energy intensive industry.

Place, publisher, year, edition, pages
Elsevier, 2017. p. 15
Keywords
Supply chain planning; Energy revenues; Energy-intensive production systems; Mixed Integer Linear Programming (MILP); model; Process industry
National Category
Energy Systems
Identifiers
urn:nbn:se:liu:diva-138731 (URN)10.1016/j.apenergy.2017.05.146 (DOI)000412379300024 ()
Note

The previous status of this article was Manuscript and the original title was How energy price changes can affect supply chain planningat a pulp company.

Funding agencies: Swedish Foundation for Strategic Research (SSF)

Available from: 2017-06-22 Created: 2017-06-22 Last updated: 2019-09-18Bibliographically approved
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