PCHE型混合工质冷凝器热力性能试验研究  

Experimental Study on Thermal Performance of PCHE Type Mixed Refrigerant Condenser

作　　者：于改革 陈永东 闫永超 张明然 倪利刚 Yu Gaige;Chen Yongdong;Yan Yongchao;Zhang Mingran;Ni Ligang(Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,China)

机构地区：[1]合肥通用机械研究院有限公司

出　　处：《流体机械》2019年第9期63-66,共4页Fluid Machinery

基　　金：安徽省重点研究和开发计划项目（1804a09020002）;安徽省自然科学基金青年基金项目（1708085QE122）;国机集团2017年度重大科技专项计划项目（国机科〔2017〕456号）

摘　　要：PCHE(Printed Circuit Heat Exchanger)型混合工质冷凝器是浮式液化天然气装置中冷凝器的首选型式。本文通过构建混合工质冷凝试验系统,完成了PCHE混合工质冷凝器冷凝试验。以混合工质冷凝平衡模型理论为基础,采用Bell-Ghaly方法与Shah冷凝准则方程进行微通道内混合工质冷凝计算。对比分析理论计算与试验结果表明:在高雷诺数情况下,Bell-Ghaly-Shah方法计算的混合工质冷凝传热系数与试验结果偏差为3.11%。本文研究内容对PCHE型混合工质冷凝器热力设计具有重要借鉴意义。Printed Circuit Heat Exchanger(PCHE)is the preferred type of mixed refrigerant condenser in a FLNG plant.A mixed refrigerant test system was constructed,and the condensation test of PCHE was completed.Based on the theory of mixed refrigerant condensation equilibrium model theory,the Bell-Ghaly method and Shah condensation criterion equation were used in the calculation of mixed refrigerant condensation in microchannels.The theoretical calculation and experimental results of comparative analysis show that the deviation of the condensation heat transfer coefficient of the mixed refrigerant calculated by Bell-Ghaly-Shah method was 3.11% at high Reynolds number.The present research contents provide important reference for the thermal design of PCHE type refrigerant condenser.

关 键 词：半圆形截面 冷凝 Bell-Ghaly法 准则方程 

分 类 号：TH12[机械工程—机械设计及理论] TK172[动力工程及工程热物理—热能工程]