Experimental Investigation on Heating Performance of Heat Pump Air-conditioning System for Electric Vehicle in Winter
The heating performance of a three-heat exchanger heat pump air-conditioning system of an electric vehicle in winter is investigated experimentally. The effects of indoor, outdoor ambient temperatures and relative humidity on the outlet temperature of the heating ventilation and air conditioning (HV...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2020-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.04.045 |
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| Summary: | The heating performance of a three-heat exchanger heat pump air-conditioning system of an electric vehicle in winter is investigated experimentally. The effects of indoor, outdoor ambient temperatures and relative humidity on the outlet temperature of the heating ventilation and air conditioning (HVAC) module, coefficient of performance (COP) and other performance parameters are investigated at different compressor speeds. The results show that higher compressor speeds can improve the outlet air temperature and heating capacity of the HVAC module, but the COP of the system decreases. When the compressor speed is maintained constant, for every 5 ℃ increase in the ambient temperature, the heating capacity increases by 9%–22%, the outlet temperature increases by 6–9 ℃, and COP increases by 7%–11%. When the outdoor relative humidity increases from 40% to 80%, the heating capacity increases by 15%–20%, outlet temperature increases by 2–3 ℃, and the COP increases by 6%–9%. |
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| ISSN: | 0253-4339 |