Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature
The development of defrosting technology is a crucial technical barrier to the application of the heat pump air conditioning system for the pure electric vehicle. The frosting on the air conditioning system significantly affects systematic performance and reliable operation especially in low tempera...
| Main Authors: | , , , , , , |
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| Format: | Article |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/40909/ |
| _version_ | 1848796160638058496 |
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| author | Zhou, Guanghui Li, Haijun Liu, Enhai Li, Bo Yan, Yuying Chen, Tong Chen, Xiaonan |
| author_facet | Zhou, Guanghui Li, Haijun Liu, Enhai Li, Bo Yan, Yuying Chen, Tong Chen, Xiaonan |
| author_sort | Zhou, Guanghui |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The development of defrosting technology is a crucial technical barrier to the application of the heat pump air conditioning system for the pure electric vehicle. The frosting on the air conditioning system significantly affects systematic performance and reliable operation especially in low temperature and high humidity climate condition. Therefore, in this paper, an experimental study of low-temperature heat pump air conditioning system with the combined defrost technology of increasing enthalpy and temperature is carried out to find proper thermal management solutions. Based on the reverse-cycle methods, the combined defrost technology makes full use of the compressor air-supplying enthalpy-adding, air-cooled heat exchanger inside the vehicle preheating, temperature-raising, enthalpy-adding and the external heat exchanger condensation temperature-increasing technologies. The fast defrosting process can be realized by means of releasing the condensation heat and volume significantly while the outer heat exchanger is conducting a defrosting operation. Meanwhile, the cold cabin sensitivity can be reduced while defrosting process taking place correspondingly. Experimental results show that under the operating condition of −20 °C outside environment temperature and 80% relative humidity, instant defrosting time at fully defrosted air-cooled heat exchanger outside the vehicle can be controlled within 100 s. |
| first_indexed | 2025-11-14T19:43:34Z |
| format | Article |
| id | nottingham-40909 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:43:34Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-409092020-05-04T19:58:16Z https://eprints.nottingham.ac.uk/40909/ Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature Zhou, Guanghui Li, Haijun Liu, Enhai Li, Bo Yan, Yuying Chen, Tong Chen, Xiaonan The development of defrosting technology is a crucial technical barrier to the application of the heat pump air conditioning system for the pure electric vehicle. The frosting on the air conditioning system significantly affects systematic performance and reliable operation especially in low temperature and high humidity climate condition. Therefore, in this paper, an experimental study of low-temperature heat pump air conditioning system with the combined defrost technology of increasing enthalpy and temperature is carried out to find proper thermal management solutions. Based on the reverse-cycle methods, the combined defrost technology makes full use of the compressor air-supplying enthalpy-adding, air-cooled heat exchanger inside the vehicle preheating, temperature-raising, enthalpy-adding and the external heat exchanger condensation temperature-increasing technologies. The fast defrosting process can be realized by means of releasing the condensation heat and volume significantly while the outer heat exchanger is conducting a defrosting operation. Meanwhile, the cold cabin sensitivity can be reduced while defrosting process taking place correspondingly. Experimental results show that under the operating condition of −20 °C outside environment temperature and 80% relative humidity, instant defrosting time at fully defrosted air-cooled heat exchanger outside the vehicle can be controlled within 100 s. Elsevier 2017-04 Article PeerReviewed Zhou, Guanghui, Li, Haijun, Liu, Enhai, Li, Bo, Yan, Yuying, Chen, Tong and Chen, Xiaonan (2017) Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature. Applied Thermal Engineering, 116 . pp. 677-684. ISSN 1873-5606 Heat pump; Pure electric vehicle; Air conditioning; Defrosting; Thermal manage http://www.sciencedirect.com/science/article/pii/S1359431117305434 doi:10.1016/j.applthermaleng.2017.01.088 doi:10.1016/j.applthermaleng.2017.01.088 |
| spellingShingle | Heat pump; Pure electric vehicle; Air conditioning; Defrosting; Thermal manage Zhou, Guanghui Li, Haijun Liu, Enhai Li, Bo Yan, Yuying Chen, Tong Chen, Xiaonan Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title | Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title_full | Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title_fullStr | Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title_full_unstemmed | Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title_short | Experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| title_sort | experimental study on combined defrosting performance of heat pump air conditioning system for pure electric vehicle in low temperature |
| topic | Heat pump; Pure electric vehicle; Air conditioning; Defrosting; Thermal manage |
| url | https://eprints.nottingham.ac.uk/40909/ https://eprints.nottingham.ac.uk/40909/ https://eprints.nottingham.ac.uk/40909/ |