摘要
为研究亚临界CO_(2)冷库制冷系统性能,建立制冷系统压缩机数学模型,分析压缩机吸气温度对输气量、容积效率等性能参数的影响。搭建亚临界CO_(2)冷库制冷系统试验台,分析储液器出口气、液质量比对系统性能的影响。结果表明,当吸气压力恒定时,吸气温度升高,压缩机实际输气量及容积效率均有小幅度提升。随着储液器出口气、液质量比增大,系统制冷量及压缩机功耗均升高,而系统COP呈先增大后减小的趋势。在气、液质量比为0.16时,COP达到最大值为1.95。
In order to study the performance of subcritical CO_(2)cold storage refrigeration system, a mathematical model of compressor in refrigeration system was established to analyze the influence of compressor suction temperature on performance parameters such as gas transmission and volumetric efficiency. A subcritical CO_(2)cold storage refrigeration system test bed was built to analyze the effects of outlet gas and liquid mass ratio of the accumulator on the system performance. The results show that when the suction pressure is constant and the suction temperature increases, the actual gas transmission and volumetric efficiency of the compressor are slightly improved. With the increase of outlet gas and liquid mass ratio of the accumulator, the refrigeration capacity and compressor power consumption of the system increase, while the COP of the system increases first and then decreases. When the gas and liquid mass ratio is 0.16, the COP reaches the maximum value of 1.95.
作者
张犇
胡开永
吴冬夏
郝嘉临
朱婷婷
刘烨
程建路
贾璐
Zhang Ben;Hu Kaiyong;Wu Dongxia;Hao Jialin;Zhu Tingting;Liu Ye;Cheng Jianlu;Jia Lu(Tianjin Key Laboratory of Refrigeration Technology,Tianjin University of Commerce,Tianjin 300134,China;Guomao Engineering Design Institute,Beijing 100037,China)
出处
《低温与超导》
CAS
北大核心
2022年第2期65-70,93,共7页
Cryogenics and Superconductivity
基金
国家自然科学基金青年基金(51906177)资助。
