کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7175421 | 1466380 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heating performance characteristics of CO2 heat pump system for electrical vehicle in a cold climate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This study investigated the heating performance characteristics of a CO2 heat pump system for an electrical vehicle in a cold climate. Experimental tests evaluated the effects on system performance of outdoor temperature, outdoor air velocity, indoor temperature, indoor air flow rate, compressor speed, and EXV opening. The results of heating experiments when both the indoor and outdoor temperatures were â20â°C showed a coefficient of performance (COP) of 3.1 and a heating capacity of 3.6âkW. The COP was 1.7 when the outdoor, indoor air inlet, and outlet temperature were â20â°C, 20â°C, and 40â°C, respectively. Therefore, the heat pump using CO2 refrigerant achieved good heating performance in a cold climate. Additionally, a new secondary loop heat pump was also compared with the conventional heat pump, and the test results show that use of the secondary loop heat pump reduced COP by 19%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 85, January 2018, Pages 27-41
Journal: International Journal of Refrigeration - Volume 85, January 2018, Pages 27-41
نویسندگان
Dandong Wang, Bingbing Yu, Jichao Hu, Liang Chen, Junye Shi, Jiangping Chen,