采用涡旋压缩机的电动汽车空调准双级压缩热泵性能实验研究

为了解决电动汽车空调系统冬季采暖问题和抑制冬季恶劣工况下压缩机排气温度过高状况,本文采用补气增焓技术,设计了电动汽车准双级压缩热泵空调系统,构建了电动汽车空调准双级涡旋式压缩机性能测试实验台。采用5种不同室外环境温度工况,分别测试了单级和准双级涡旋式压缩机。结果表明：压缩机的排气温度随环境温度的降低而升高。5种工况下,单级涡旋压缩机的排气温度均高于准双级涡旋压缩机的排气温度,尤其在环境温度为-7℃时,准双级涡旋压缩机的排气温度降低了10℃。与单级涡旋压缩机相比,在低温工况下,准双级涡旋压缩机的排气质量流量提高了12.9%~17.4%,系统制热量提高了7.3%~8.3%,制热性能系数COPh提高...

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Bibliographic Details
Published in制冷学报 Vol. 39; no. 1; pp. 34 - 39
Main Author 唐景春;李晨凯;叶斌;晓磊
Format Journal Article
LanguageChinese
Published 合肥工业大学汽车与交通工程学院 合肥230009 2018
Subjects
准双级压缩
性能实验
涡旋压缩机
热泵
电动汽车空调
性能实验
heat pump
热泵
电动汽车空调
quasi two-stage compression
scroll compressor
准双级压缩
涡旋压缩机
electric vehicle air-conditioning
performance experiment
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ISSN0253-4339
DOI10.3969/j.issn.0253-4339.2018.01.034

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Summary:为了解决电动汽车空调系统冬季采暖问题和抑制冬季恶劣工况下压缩机排气温度过高状况,本文采用补气增焓技术,设计了电动汽车准双级压缩热泵空调系统,构建了电动汽车空调准双级涡旋式压缩机性能测试实验台。采用5种不同室外环境温度工况,分别测试了单级和准双级涡旋式压缩机。结果表明：压缩机的排气温度随环境温度的降低而升高。5种工况下,单级涡旋压缩机的排气温度均高于准双级涡旋压缩机的排气温度,尤其在环境温度为-7℃时,准双级涡旋压缩机的排气温度降低了10℃。与单级涡旋压缩机相比,在低温工况下,准双级涡旋压缩机的排气质量流量提高了12.9%~17.4%,系统制热量提高了7.3%~8.3%,制热性能系数COPh提高了7.6%~8.2%。
Bibliography:11-2182/TB
To solve the problem of heating in electric vehicle air-conditioning systems and suppressing the high discharge temperature of the compressor in winter, a quasi-two-stage compression heat pump system for electric vehicles has been designed using flash tank vapor injection. Additionally, an experimental platform for testing the performance of a quasi-two-stage compression scroll compressor has been built. Using this platform, single-stage and quasi-two-stage compression scroll compressors have been tested under five different outdoor temperature conditions. The experimental results show that the discharge temperature of the compressor increases with the decrease of am-bient temperature. Under all five conditions, the discharge temperature of the single-stage compression scroll compressor is higher than that of the quasi-two-stage scroll compressor. In particular, when the ambient temperature reaches - 7℃, the discharge temperature ofthe quasi-two-stage compression scroll compressor is 10 , less than
ISSN:0253-4339
DOI:10.3969/j.issn.0253-4339.2018.01.034