空气制冷应用于空调系统的分析研究  

A study on performance of an air refrigerating cycle used for air-conditioning system

作　　者：解国珍[1] 闫树龙[1] 陈昀[1] 吴业正[2] 

机构地区：[1]北京建筑工程学院,北京100044 [2]西安交通大学,西安710049

出　　处：《低温工程》2007年第3期60-64,共5页Cryogenics

基　　金：北京市教育委员会科技发展基金项目资助(050400902);供热;供燃气;通风和空调工程北京市重点实验完资助

摘　　要：从热力学角度分析了空气制冷循环在高压状态和真空状态下的能效特点,结合传统的空气调节系统,研究空气制冷循环在空气调节闭式循环、开式循环和一次回风系统中的节能特性。研究表明,在维持空气制冷循环中空气膨胀后温度相同工况下,真空循环的制冷系数优于高压循环的制冷系数;开式的一次回风真空制冷循环系统可以产生节能效果;开式空气制冷循环与闭式空气制冷循环在工程应用中各具特色,应根据应用状况来决定是否采用开、闭式制冷循环。From the view of thermodynamic, the efficiency of an air refrigerating cycle that is working at atmosphere pressure state and vacuumed state respectively was analyzed. Furthermore, the performance of several styles of air-conditioning system with the air refrigerating cycle, such as the closed refrigerating cycle, the opened refrigerating cycle and the partial cooling air returning to room cycle were studied. The researching results show that the COP of the refrigerating system at atmosphere pressure state is more than that at vacuumed state, and the energy-saving could be obtained when the air-conditioning system with partial cooling air returning to room and the opened refrigerating cycle will run at vacuumed state. It is suggested that option of the opened refrigerating cycle or closed cycle should be carried out according to the requirements of an actual engineering project.

关 键 词：空气制冷循环 一次回风空调系统 闭式或开式循环 

分 类 号：TB614[一般工业技术—制冷工程] TB657.2