学术
摘 要:
介绍了低温环境下采用自然工质R290和CO2的复叠式制冷循环，用熵产最小法对R290／CO2复叠式低温制冷循环进行了分析，利用熵产最小法确定R290/CO2复叠式低温制冷循环的最佳中间温度。为提高R290／CO2复叠式低温制冷循环的效率，应减少蒸发器、冷凝器和冷凝蒸发器的传热温差，可以看出R290／CO2的复叠式制冷循环在低温制冷条件下有很好的发展前景。[著者文摘]
文章出处:
《制冷与空调（四川）》-2007年21卷1期 -85-88页
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相关文章:
The Analysis of R290/CO2 Cascaded Refrigeration Cycle Using an Entropy Generation Minimization Method
Ning Jinghong, Zha Shitong, Li Huiyu ,Peng Miao （Refrigeration department of TianJin commercial college, Tianjin 300134）
Abstract:
This paper introduces a cascaded refi＇igeration cycle that uses natural refiigerants of R290 and CO2 at low temperature. The optimal intermediate temperature of R290 / CO2 cascaded refiigeration cycle is determined by using the entropy generation minimization method. For enhancing the efficiency of R290 / CO2 cascaded refiigeration cycle, it is necessary to reduce the heat transfer temperature difference of evaporator, condenser and condenser-evaporator. It can be concluded that R290 / CO2 natural refi＇igerants cascaded refi＇igeration cycle has a good future.[著者文摘]
Key words:
R290 / CO2; Cascaded refiigeration cycle; entropy generation; optimal intermediate temperature
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