[1]魏新利王中华耿利红.压缩制冷系统节流损失及应对方案研究[J].郑州大学学报(工学版),2015,36(03):68-72.[doi:10.3969/ j. issn.1671 -6833.2015.03.015]
　WEI Xin-li,WANG Zhong-hua,GENG Li-hong,et al.Study on the Throttling Losses in CRS and Solutions[J].Journal of Zhengzhou University (Engineering Science),2015,36(03):68-72.[doi:10.3969/ j. issn.1671 -6833.2015.03.015]
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压缩制冷系统节流损失及应对方案研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36卷
期数:
2015年03期
页码:
68-72
栏目:
出版日期:
2015-06-30

文章信息/Info

Title:
Study on the Throttling Losses in CRS and Solutions
作者:
魏新利1王中华2耿利红3
郑州大学化工与能源学院,河南郑州450001
Author(s):
WEI Xin-li; WANG Zhong-hua; GENG Li-hong; MENG Xiang-rui
School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou 450001,China
关键词:
压缩制冷; 节流损失; 节能; 喷射器
Keywords:
compression refrigeration; throttling loss; energy saving;  ejector
分类号:
TB61 +5
DOI:
10.3969/ j. issn.1671 -6833.2015.03.015
文献标志码:
A
摘要:
对传统单、双温压缩制冷系统(CRS)建立了理论分析的热力学模型,通过Matlab R2010a计算不同工况下的节流损失.模型以R134a为工质,物性参数通过调用REFPROP 9.0准确获取,结果发现:传统压缩系统中,节流损失占压缩机耗功13.0% ~31.9% ;双温系统中,节流损失占压缩机耗功的比例比单温系统的高约50% ﹔工况条件变化时,节流损失也相应变化.结合节流损失的特点,对3种常见的节能方案进行了分析,模拟了不同工况下压缩/喷射制冷系统的性能系数(COP),并同单纯回收节流损失的情况进行比较,结果验证了利用喷射器回收系统节流损失的可行性.
Abstract:
A thermodynamic model is established to make a theoretical analysis on conventional compressionrefrigeration systems ( CRS ),throttling losses under various operating conditions are simulated with MatlabR2010a.R134a is chosen as refrigerant in the model and its thermo-physical properties are obtained fromREFPROP 9.0.The results show that:1. throttling losses in CRS accounts for 13 to 31.9 of compressor pow-er; 2.throttling losses of double temperature CRS are about 50% higher than that of the single temperatureCRS; 3.throtling losses change with operating conditions. According to the characteristics of CRS, three com-monly used ways to recover throttling losses are analyzed. COP of C/ERS is simulated under various operatingconditions and compared with the simply recover throttling losses scheme,the results verify the feasibility of u-sing ejector in CRS.
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