吸收制冷循环极限制冷温度研究  

STUDY ON LOWEST REFRIGERATION TEMPERATURE FOR ABSORPTION REFRIGERATION CYCLE

作　　者：何一坚[1] 陈光明[1] 

机构地区：[1]浙江大学制冷与低温研究所,浙江杭州310027

出　　处：《工程热物理学报》2004年第6期917-920,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50276054)

摘　　要：提出了吸收制冷循环的极限制冷温度概念,以自行复叠吸收制冷(ACAR)循环为例分析了多种因素对极限制冷温度和COP等性能参数的影响。分析结果表明制冷剂的配比是影响ACAR循环极限制冷温度等性能的关键因索,为此计算得到了理沦最佳制冷剂配比。同时,分析了传统吸收制冷循环的特性,并在相同条件下和ACAR循环进行了比较,结果表明ACAR循环可以获得低得多的制冷温度,具有高得多的COP,用于深度冷冻具有独特的优势。The conception of lowest refrigeration temperature is brought forward on absorption refrigeration cycle, then, effects of different factor is studied on characteristics of an auto-cascade absorption refrigeration (ACAR) cycle. The results of analysis show that the composition of refrigerant mixture has key effects on characteristics of ACAR cycle, and its optimal composition is achieved by theoretical calculations. Finally, the comparisons of characteristics are carried out between ACAR cycle and traditional one. It is concluded that ACAR cycle has great advantages over traditional one in low temperatures, such as rather low refrigeration temperature and greater COP etc. and is suitable for deep freezing by using low grade thermal energy.

关 键 词：吸收制冷 自行复叠 深度冷冻 

分 类 号：TK123[动力工程及工程热物理—工程热物理]