摘要
文中介绍了Einstein单压吸收式制冷循环的工作原理,对国内3种有代表性的改进型Einstein制冷系统(Ⅰ, Ⅱ, Ⅲ)进行了对比。运用质量和能量守恒定理,建立了3个系统各部件的热力学模型,并对其性能进行了分析。结果表明:相同工况下,系统Ⅱ的COP(制冷性能系数)最高,达到0.255 1,工况的变化并不能有效改善3个系统的COP,而通过合理匹配系统各部件,优化管道阻力,采用热回收系统、高效气泡泵及选择最佳的发生温度,能够有效改善系统制冷性能,对Einstein(制冷循环)系统的性能优化及工业应用具有重要的指导意义。
In the paper,the principle of single pressure absorption-type Einstein refrigeration cycle was introduced. Three improved Einstein refrigeration systems(Ⅰ, Ⅱ, Ⅲ) built in our previous work were compared. The thermodynamic models of the three systems were established using mass and energy conservation law. Then their performances were analyzed. The results show that system Ⅱ has the highest COP( 0. 255 1) under the same working conditions. Changing the working conditions cannot very effectively improve the system COP. But the system refrigeration performance can be effectively improved by reasonably matching system components,optimizing pipeline resistance,using heat recovery system and efficient bubble pump,and then choosing the best generation temperature. This study is expected to provide important guidance for Einstein refrigeration cycle system performance optimization and industrial applications.
出处
《热能动力工程》
CAS
CSCD
北大核心
2016年第10期1-8,122,共8页
Journal of Engineering for Thermal Energy and Power
基金
上海市教育委员会科研创新基金资助项目(13ZZ117)
关键词
Einstein循环
单压吸收制冷
改进
可行性分析
Einstein cycle
single pressure absorption-type refrigeration
improvement
feasibility analysis
