郑州轻工业学院学报（自然科学版）Issue(2)：80-86,7.DOI:10.3969/j.issn.2095-476X.2014.02.020
CO2跨临界制冷系统单元件改进的性能研究
Performance analysis of CO 2 transcritical refrigeration system units’improvement
摘要
Abstract
By adding the internal heat exchanger and bypass valve,the transcritical CO2 refrigeration sys-tem with dual throttle valve was improved.Through the theoretical analysis and calculation of system per-formance parameters,it was concluded that:There was an optimum high-pressure Ph,opt ,the relationship between the optimum high-pressure (Ph,opt ),the gas cooler outlet temperature (T3 )and the evaporation temperature (Te)was:Ph,opt=0.264 3 T3 -0.008 9 Te -70.255 4;there was a larger increase in the region lower than the optimum high-pressure when the internal heat exchanger was used,there was little im-pact on system performance when the bypass valve was used from a theoretical calculation view.关键词
CO2跨临界制冷系统/高压侧压力/系统性能参数Key words
CO2 transcritical refrigeration system/high side pressure/coefficient of system performance分类
能源与动力引用本文复制引用
李亚强,龚毅,彭锦晨..CO2跨临界制冷系统单元件改进的性能研究[J].郑州轻工业学院学报（自然科学版）,2014,(2):80-86,7.基金项目
国家“十一五”科技支撑计划项目 （）
