郑州地区典型气象条件下的模拟太阳能喷射制冷实验  

EXPERIMENTAL RESEARCH ON SOLAR EJECTOR REFRIGERANT BASED ON THE CLIMATE CONDITION IN THE ZHENGZHOU REGION

作　　者：郑慧凡[1] 范晓伟[1] 李安桂[2] 

机构地区：[1]中原工学院能源与环境学院,郑州450007 [2]西安建筑科技大学环境与市政工程学院,西安710055

出　　处：《太阳能学报》2011年第8期1169-1173,共5页Acta Energiae Solaris Sinica

基　　金：建设部2007科学技术开发研究项目(2007-K1-29);河南省杰出青年基金项目(084100510008);河南省重点科技攻关计划(082102280010)

摘　　要：设计并搭建了太阳能喷射制冷实验研究平台,选取HFC134a作为制冷剂,基于郑州地区典型日的气象参数,研究了喷射制冷系统的COP、EER、喷射系数、制冷量、压缩比等参数随太阳辐射的逐时变化。实验表明:太阳能喷射制冷系统工作时,系统COP和EER等参数随时间呈波动趋势,其变化受室外温度、太阳辐射、系统发生温度及冷凝温度等参数的综合影响,典型日8月18日的平均日COP为0.19,平均日EER可达4.0,最大的COP和EER分别为0.21和4.57,考虑太阳能集热效率后的系统最大COP_0为0.134,系统压缩比随时刻在1.8～2.2之间波动。Based on the climate condition of the Zhengzhou region, an experimental ejector refrigerant system was designed and constructed to research the performance of HFC134a which was as working fluid in this paper. The hourly performance of the entrainment ratio, cooling capacity, COP, EER and ε on the system were studied. The experimental results demonstrate that the entrainment ratio, cooling capacity, coefficient of performance and EER of the system fluctuate with changing of the solar radiation and the ambient temperature ; In addition, the average COP and EER of the typical meteorological day, August 18th can reach 0.19 and 4.0, and the biggest COP,COPo and EER is 0.21, 0. 134 and 4.57 respectively, and the ε changed from 1.8 to 2.2 when the hour varied between 9： 00 and 16： 00.

关 键 词：太阳能喷射制冷 HFC134A 逐时性能 典型日 

分 类 号：TK52[动力工程及工程热物理—热能工程]