基于逆布雷顿循环的空气制冷机的优化与性能分析  

Optimization and Performance Analysis of Air Cooler Based on Inverse Brayton Cycle

作　　者：郑俊 李吉冬 许未晴[1] 蔡茂林[1] ZHENG Jun;LI Jidong;XU Weiqing;CAI Maolin(Pneumatic and Thermodynamic Energy Storage and Supply Beijing Key Laboratory,School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,气动热力储能与供能北京市重点实验室,北京100191

出　　处：《制冷技术》2024年第3期44-51,59,共9页Chinese Journal of Refrigeration Technology

摘　　要：本文提出将传统空气制冷机的绝热压缩过程改进为多管束空气压缩机进行等温压缩,分析了改进后基于逆布雷顿循环的空气制冷机的压缩过程、制冷循环过程以及性能系数。结果表明:相较于传统的空气制冷机,改进的空气制冷机压缩机出口温度可降低144.55K,做功可以减少52.48kJ/kg,性能系数(COP)可以提高0.375。如果考虑回收膨胀功,改进的空气制冷机COP可以达到1.33。The improvement of adiabatic compression process of a conventional air cooler to isothermal compression is proposed in this paper by employing a multi-tube bundle air compressor.The compression process,the refrigeration cycle process and the refrigeration efficiency of the improved air cooler based on an inverse Brayton cycle are analyzed.The results show that compared with the traditional air cooler,the improved air cooler compressor outlet temperature can be reduced by 144.55 K,the work done can be reduced by 52.48 kJ/kg and the coefficient of performance(COP)can be increased by 0.375.If the recovery of expansion work is considered,the improved air cooler COP can reach 1.33.

关 键 词：逆布雷顿循环 空气制冷机 多管束空气压缩机 等温压缩 性能系数 

分 类 号：TB611[一般工业技术—制冷工程] TQ051.5[化学工程]