Experimental study on the CO2 flow characteristics through electronic expansion valves in heat pump
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- 作者：Changhai Liua ; b ; Yu Houa ; Juanli Maa ; Xiufang Liua ; Liang Chena ; liangchen@mail.xjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Supercritical CO2 ; Electronic expansion valve ; CO2 heat pump ; Mass flow rate
- 刊名：International Journal of Refrigeration
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：69
- 期：Complete
- 页码：106-113
- 全文大小：1728 K
文摘
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Flow characteristics of CO2 EEV was investigated in a large operation range.
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The important role of density was identified in the prediction of CO2 flow.
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Dramatic change of flow characteristics was observed above the critical point.