Exergy Analysis of Direct-Expansion Solar-Assisted Heat Pump Based on Experimental Data

被引：0
|
作者：
Kong X. [1 ]
Cui F. [1 ]
Li J. [1 ]
Zhang M. [1 ]
机构：
[1] College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong
来源：
Kong, Xiangqiang (xqkong@sdust.edu.cn) | 1600年 / Shanghai Jiaotong University卷 / 26期
基金：
中国国家自然科学基金;
关键词：
A; direct expansion; exergy analysis; heat pump; solar energy; TK; 11;
D O I：
10.1007/s12204-020-2228-6
中图分类号：
学科分类号：
摘要：
The purpose of this research is to reveal the exergy variation of each component in a direct-expansion solar-assisted heat pump (DX-SAHP) system. Exergy analysis of the DX-SAHP system with R134a is conducted, and the performance evaluation is done. The proposed system is mainly composed of a bare plate solar collector/evaporator, a hermetic variable-frequency rotary-type compressor, a micro-channel condenser and an electronic expansion valve. The experimental data include the exergy loss rates, irreversibility rates and exergy loss ratios of all components and the influences of ambient temperature on these parameters. The analysis results show that the average irreversibility rate of the compressor is 204.8 W at an ambient temperature of 16 °C, and 149.9 W at an ambient temperature of 27 °C. The highest irreversibility rate occurs in the compression process, followed by the throttling process, the evaporation process and the condensation process. © 2020, Shanghai Jiao Tong University and Springer-Verlag GmbH Germany, part of Springer Nature.
引用
收藏
页码：138 / 145
页数：7
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