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Cabin-Ambient Air Exchanges and Their Relation to In-Vehicle CO 2 Concentration
Technical Paper
2017-01-1725
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It is common for users of commuting passenger cars in Thailand to use the vehicle’s HVAC (Heating, Ventilating and Air Conditioning) system predominantly in recirculation (REC) mode. This minimizes the compressor work, thereby saving fuel, and reduces dust and odor infiltration into the vehicle cabin. The car windows are rarely opened for ventilation purposes, except for exchanges at service stations such as garage entrances and tollway booths. As such, there are few opportunities for fresh air to enter the cabin with the consequent accumulation of CO2 in vehicle cabins due to occupants’ exhalations being well documented. Field experiments conducted showed that the in-vehicle CO2 concentrations could reach up to 15 times that of the ambient concentration level during typical city commutes. Preliminary experiments were also conducted to quantify the air exchanges between the cabin and the ambient when the doors are opened for occupant egression. The results indicated that the amount of air exchange depends on the prevailing wind speed and direction, the number of doors opened, and the duration of the door opening.
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Tessathan, T., Thammasiri, C., De Silva, P., Hussain, R. et al., "Cabin-Ambient Air Exchanges and Their Relation to In-Vehicle CO2 Concentration," SAE Technical Paper 2017-01-1725, 2017, https://doi.org/10.4271/2017-01-1725.Data Sets - Support Documents
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References
- Briggs , D. J. , de Hoogh , K. , Morris , C. , & Gulliver , J. 2008 Effects of travel mode on exposures to particulate air pollution Environment International 34 1 12 22 http://doi.org/10.1016/j.envint.2007.06.011
- Gladyszewska-Fiedoruk , K. 2011 Concentrations of carbon dioxide in a car Transportation Research Part D: Transport and Environment 16 2 166 171 http://doi.org/10.1016/j.trd.2010.07.003
- Grady , M. L. , Jung , H. , Kim , Y. C. , Park , J. K. , & Lee , B. C. 2013 Vehicle Cabin Air Quality with Fractional Air Recirculation http://doi.org/10.4271/2013-01-1494
- Jung , H. 2013 Modeling CO 2 Concentrations in Vehicle Cabin, 1-6 http://doi.org/10.4271/2013-01-1497
- Knibbs , L. D. , De Dear , R. J. , & Atkinson , S. E. 2009 Field study of air change and flow rate in six automobiles Indoor Air 19 4 303 313 http://doi.org/10.1111/j.1600-0668.2009.00593.x
- Tartakovsky , L. , Baibikov , V. , Czerwinski , J. , Gutman , M. , Kasper , M. , Popescu , D. , Veinblat , M and Zvirin , Y. 2013 In-vehicle particle air pollution and its mitigation Atmospheric Environment 64 320 328 http://doi.org/10.1016/j.atmosenv.2012.10.003
- Zhang , Q. , & Zhu , Y. 2010 Measurements of ultrafine particles and other vehicular pollutants inside school buses in South Texas Atmospheric Environment 44 2 253 261 http://doi.org/10.1016/j.atmosenv.2009.09.044
- Luangprasert , M. , Vasithamrong , C. , Pongratananukul , S. , Chantranuwathana , S. , Pumrin , S. and De Silva , I.P.D. In-vehicle carbon dioxide concentration in commuting cars in Bangkok, Thailand Journal of the Air & Waste Management Association 2017 10.1080/10962247.2016.1268983