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Design and Testing of a Thermal Storage System for Electric Vehicle Cabin Heating
Technical Paper
2016-01-0248
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Without the waste heat available from the engine of a conventional automobile, electric vehicles (EVs) must provide heat to the cabin for climate control using energy stored in the vehicle. In current EV designs, this energy is typically provided by the traction battery. In very cold climatic conditions, the power required to heat the EV cabin can be of a similar magnitude to that required for propulsion of the vehicle. As a result, the driving range of an EV can be reduced very significantly during winter months, which limits consumer acceptance of EVs and results in increased battery costs to achieve a minimum range while ensuring comfort to the EV driver. To minimize the range penalty associated with EV cabin heating, a novel climate control system that includes thermal energy storage has been designed for use in EVs and plug-in hybrid electric vehicles (PHEVs). The system uses the stored latent heat of an advanced phase change material (PCM) to provide cabin heating. The PCM is melted while the EV is connected to the electric grid for charging of the electric battery, and the stored energy is subsequently transferred to the cabin during driving. To minimize thermal losses when the EV is parked for extended periods, the PCM is encased in a high performance insulation system. The electrical PCM-Assisted Thermal Heating System (ePATHS) was designed to provide enough thermal energy to heat the EV’s cabin for approximately 46 minutes, covering the entire daily commute of a typical driver in the U.S.
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Citation
Wang, M., Wolfe, E., Craig, T., Laclair, T. et al., "Design and Testing of a Thermal Storage System for Electric Vehicle Cabin Heating," SAE Technical Paper 2016-01-0248, 2016, https://doi.org/10.4271/2016-01-0248.Also In
References
- Kowsky , C. , Wolfe , E. , Chowdhury , S. , Ghosh , D. et al. PCM Evaporator with Thermosiphon SAE Technical Paper 2014-01-0634 2014 10.4271/2014-01-0634
- Aikawa , Y. , Yamanaka , Y. , Suzuki , T. and Kume , M. Vehicle Air Conditioner With Cold Storage Unit US Patent No. 6701731 Denso Corporation March 9 2004
- Bo , H. , Gustafsson , M. , Setterwall , F. Paraffin Waxes And Their Binary Mixture As Phase Change Materials (PCMs) For Cool Storage In District Cooling System IEA Annex 10, Phase Change Materials and Chemical Reactions for Thermal Energy Storage First Workshop 16 17 Adana, Turkey April 1998
- Carroll , Joseph Workers' Average Commute Round-Trip Is 46 Minutes in a Typical Day GALLUP News Service August 24 2007
- Bureau of Transportation Statistics, US DOT Highlights of the 2001 National Household Travel Survey, Bureau of Transportation NHTS 2001 Highlights Report, BTS03-05 Washington DC 2003
- Kowsky , C. , Wolfe , E. , Leitzel , L. , and Oddi , F. Unitary HPAC System SAE Int. J. Passeng. Cars - Mech. Syst. 5 2 1016 1025 2012 10.4271/2012-01-1050
- Duthie , Graham S. Average Mobile A/C Customer Usage Model: Development and Recommendations 2002 SAE Alternate Refrigerants Systems Symposium July 11, 2002