CO2跨临界循环热泵热水器用气冷器的优化设计  

Optimal Design of Gas Cooler Applied in CO_2 Transcritical Cycle Heat Pump Water Heater

作　　者：张仙平[1] 王凤坤[2] 范晓伟[2] 沈恒根[1] 

机构地区：[1]东华大学 [2]中原工学院,河南郑州450007

出　　处：《流体机械》2008年第3期81-85,62,共6页Fluid Machinery

基　　金：河南省高校新世纪优秀人才支持计划项目;河南省科技攻关项目(0524440040)

摘　　要：在设计工况下,建立了用于CO2跨临界循环热泵热水器的套管式气冷器的稳态分布参数模型,对其结构参数进行了敏感性分析,指出了它们的合理变化范围:管内套1根管时,内管外径应至少大于8.00mm,低于10.00mm,外管内径应在11.00mm以上,13.00mm以下;管内套多根管时,3根管性能最优。优化设计结果对CO2气冷器产品的开发具有一定的指导意义。Under the design condition,a steady state distributed-parameter model of coaxial gas cooler applied in CO2transcritical cycle heat pump water heater was established. Based on this model, sensitivity analysis＇of gas cooler performace to its configuration parameters was carried out. According to the simulation results, it is suggested that when one tube in a tube is designed, the outer diameter of inside tube should be at least greater than 8.00mm and lower than 10.00ram, the inner diameter of outside tube is between 11.00mm and 13.00mm. For more tubes in a tube, three tubes in a tube shows the best characteristics. Tile results of optimization design are expected to offer useful guidelines for gas cooler design and its development.

关 键 词：CO2跨临界循环 热泵热水器 气冷器 优化设计 

分 类 号：TB657.5[一般工业技术—制冷工程] TU833[建筑科学—供热、供燃气、通风及空调工程]