配置露点蒸发器的新型空气制冷循环的热力分析  

Thermodynamic Analysis of a New Air Refrigeration Cycle Combined with a Dew-point Evaporator

作　　者：王鹏[1] 王闯 邢子文[1] Wang Peng;Wang Chuang;Xing Ziwen(School of Energy and Power Engineering, Xi′an Jiaotong University, Xi′an, 710049, China)

机构地区：[1]西安交通大学能源与动力工程学院,西安710049

出　　处：《制冷学报》2021年第2期77-82,共6页Journal of Refrigeration

基　　金：国家自然科学基金(51976148)资助项目。

摘　　要：本文提出一种与露点间接蒸发冷却器相耦合的冷库用新型空气制冷循环。对该新型循环进行了相应的热力计算,与普通空气制冷循环及NH3蒸气压缩循环进行了对比分析,并对比分析了工况参数变化对耦合露点间接蒸发冷却器前后的空气制冷循环性能及NH3蒸气压缩循环COP的影响。结果表明:配置露点间接蒸发冷却器的新型空气制冷循环的性能得到了提高,设定工况下最大COP可提高37.8%,且相比NH3制冷循环,流程与设备更简单。A new type of air refrigeration cycle combined with a dew-point indirect evaporative cooler(IEC)is proposed.Corresponding thermodynamic calculations on the new cycle were carried out.A comparative analysis was carried out with the ordinary air refrigeration cycle and NH3 vapor compression cycle.The influences of operation conditions on the performances of the air refrigeration cycle before and after combining the dew-point IEC as well as the COP of the NH3 vapor compression cycle were analyzed.The results showed that the performance of the new air refrigeration cycle combined with the dew-point IEC was greatly improved.The maximum COP can be increased by 37.8%under the design conditions.In addition,compared to the NH3 refrigeration cycle,it can operate with simpler processes and equipment.

关 键 词：制冷循环 热力分析 露点间接蒸发冷却器 COP 天然制冷剂 

分 类 号：TB611[一般工业技术—制冷工程] TB657.5