基于R134a的太阳能多喷射器制冷系统的方案设计  

Scheme Comparison of Solar Energy-driven Multi-ejectors Refrigeration System Using R134a as Refrigerant

作　　者：范晓伟[1] 刘鸿超[1] 郑慧凡[1] 赵成明[1] 

机构地区：[1]中原工学院,郑州450007

出　　处：《中原工学院学报》2015年第1期67-70,共4页Journal of Zhongyuan University of Technology

基　　金：国家自然科学基金项目(51306214);河南省科技厅科技攻关项目(132102210176)

摘　　要：基于发生温度的不同温度区间,提出了太阳能多喷射器制冷系统组合方案。根据气体动力学原理和喷射器性能分析模型,以R134a为制冷剂进行了计算分析,结果表明：设置3个喷射器时系统性能最佳,发生温度在70～85℃的范围内,系统COP维持在0.2以上,最高能够达到0.288。Solar-driven refrigeration system with multi-ejectors which can achieve the improvement of the performance of the system with the parallel operation of ejectors has been analyzed in this paper. Different plans of the number of ejectors has been designed based on generating temperature regionalization. According to the gas dynamics function, a simulation program describing the performance of solar ejector has been estab- lished. The performance of refrigeration system has been analyzed using R134a as refrigerant. The results show that the performance of refrigeration system is best when there are three ejectors in the system. The coefficient of performance of the system can remain above 0.2 when the generating temperature are between 70℃ and 85 ℃, the highest can reach 0. 288.

关 键 词：太阳能 喷射器 工况 方案 制冷剂 

分 类 号：TG142.1[一般工业技术—材料科学与工程]