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Chemical gas sensors for car exhaust and cabin air monitoring
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .
Löfvendahl, A., Volvo Car Corporation, Department 98351 PV 1B.
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2002 (English)In: Indoor + Built Environment, ISSN 1420-326X, E-ISSN 1423-0070, Vol. 11, no 2, 105-110 p.Article in journal (Refereed) Published
Abstract [en]

A combination of charcoal and particle filters has previously been shown to reduce effectively the smell of diesel exhaust. In this paper it is shown that the smell of diesel exhaust can successfully be predicted by the concentration of total volatile organic compounds and the concentration of certain carbonyl compounds. Projection to latent structures was utilised for model building. An electronic nose consisting of MOSFET and MOS sensors could less successfully predict the smell, but identified the same filter combination as being most efficient. The car cabin air during urban driving was also monitored, both by the means of MOSFET sensors and by chemiluminescence. The pollution level inside the car is shown to be elevated by about 30% compared to outside the car. A combination filter together with an air inlet sensor switch is shown to reduce the NOx levels inside the car by 30% compared to outside, with the ability to significantly decrease the peak levels. Copyright © 2002 S. Karger AG, Basel.

Place, publisher, year, edition, pages
2002. Vol. 11, no 2, 105-110 p.
Keyword [en]
Air inlet filter, Cabin air, Diesel exhaust, Electronic nose
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46943DOI: 10.1159/000064246OAI: oai:DiVA.org:liu-46943DiVA: diva2:267839
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Winquist, Fredrik

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