双分层水箱太阳能喷射制冷循环特性  

Performance of Solar-powered Ejector Refrigeration System with Double-partitioned Water Storage Tanks

作　　者：郝新月 陈光明[1] 宣永梅 谢宝成 Hao Xinyue Chen Guangming Xuan Yongmei Xie Baocheng(Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100, China School of Environmental and Chemical Engineering, Xi＇an Polytechnic University, Xi＇an, 710048, China)

机构地区：[1]浙江大学宁波理工学院,宁波315100 [2]西安工程大学环境与化学工程学院,西安710048

出　　处：《制冷学报》2017年第5期7-13,共7页Journal of Refrigeration

基　　金：国家自然科学基金(51276171)资助项目;宁波市重大产业技术创新专项(2016B10003);浙江省制冷与低温技术重点实验室(201600BA)项目资助~~

摘　　要：本文提出一种采用双分层水箱的太阳能喷射制冷循环,分层水箱热分层显著,颇具可用能储存优势,结合大小水箱各自的优势弥补因太阳日辐射量波动而导致太阳能利用率不高、太阳能驱动的喷射制冷效率较低等问题。采用逐时冷负荷分析法分析了双分层水箱太阳能喷射制冷系统特性,结果表明:该制冷循环高品位能耗约为普通机械压缩制冷循环的1/5,较传统水箱太阳能喷射制冷循环全天工作时间约多4 h,日产冷量提高36.8%,且分层水箱喷射制冷系统的逐时制冷量与办公室逐时冷负荷更吻合。A solar-powered ejector refrigeration system with double-partitioned water storage tanks was proposed and analyzed. The stratified water tank had higher energy storage capacity and better thermal stratification than the conventional design. The advantages of a parti- tioned water storage tank and large and small water tanks were fully utilized in the novel system to compensate for the disadvantages of low solar energy utilization and low solar-powered ejector refrigeration efficiency, which resulted from the solar energy instability. In this stud- y, the performance of the novel system was analyzed using an hourly cooling load analysis method. The high-grade energy consumption of the novel system is approximately 1/5 that of the conventional mechanical compression refrigeration cycle. The whole-day working time increases by 4 hours and the cooling capacity increases by 36.8% compared with the solar-powered ejector refrigeration cycle for the conventional water tank. In addition, the hourly cooling capacity of the novel system and the hourly cooling load of the office are more consistent than those of the conventional system.

关 键 词：太阳能喷射制冷 分层水箱 逐时冷负荷 

分 类 号：TB66[一般工业技术—制冷工程] TK511.3[动力工程及工程热物理—热能工程]