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吸收式制冷工质对的研究进展
卞宜峰, 何国庚, 蔡德华, 肖如熙, 张奥妮
0
(华中科技大学能源与动力工程学院)
摘要:
吸收式制冷的发展在当今节能与环保两大主题之下得到了人们极大地重视,其中吸收式制冷工质对的发展作为吸收式制冷的核心技术尤其重要。文中列举了部分在吸收式制冷方向的热门课题,指出理论研究与实际应用问题的差距;根据制冷剂的不同将吸收式制冷工质对分为氨系、水系、醇系、氟系以及其它共五类,回顾这五类工质对的发展历程与现状,针对这五类中传统工质对的缺陷,探讨相应的优化措施和研究新型工质对,并且与传统工质对进行性能比较。重点介绍了NH3-NaSCN和NH3- LiNO3两对工质对的研究现状,比较两者在不同工况下的优缺点;介绍了以各类盐组合的方式替代LiBr来改善LiBr-H2O强烈腐蚀特性。在研究现状基础上指出了改进现有工质对性能和发掘新型工质对的研究方向。
关键词:  吸收式制冷工质对  综述  制冷剂  吸收剂
DOI:
    
基金项目:国家自然科学基金(51176054)项目资助。
Research Progress of Absorption Refrigeration Working Pairs
Bian Yifeng, He Guogeng, Cai Dehua, Xiao Ruxi, Zhang Aoni
(Energy and Power Engineering, Huazhong University of Science and Technology)
Abstract:
The development of absorption refrigeration has attracted people’s attention under the theme of energy conservation and environmental protection. As one of the core techniques, the development of absorption refrigeration working pairs plays an important role. Some hot topics in the field of absorption refrigeration were enumerated and the gap between theoretical research and practical application problems were pointed out. According to the differences of refrigeration, there are five groups of working pairs, such as ammonia, water, alcohol, fluoride, etc. Historical and current situation of the five-group working pairs were reviewed and defects of the traditional ones were analyzed. This paper explored the relevant optimization measures, new working pairs and compared their performance with that of the traditional ones. In addition, the current research situation of NH3-NaSCN and NH3- LiNO3 was emphasized and a comparison between their advantages and disadvantages in different conditions was made. Moreover, different kinds of salt combinations were introduced to replace LiBr and weaken the corrosivity of LiBr-H2O. On the basis of current researches, more works should be done on the improvement of existing working pairs’ performance and exploration of new ones.
Key words:  absorption refrigeration working pairs  review  refrigerant  absorbent

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