光伏直驱冰蓄冷空调系统性能分析  

PERFORMANCE ANALYSIS OF PHOTOVOLTAIC DIRECT-DRIVEN ICE COOL STORAGE AIR CONDITIONING SYSTEM

作　　者：王瑞[1] 李明[1] 王云峰[1] 李国良[1] 徐永锋[1] 韩友华 Wang Rui;Li Ming;Wang Yunfeng;Li Guoliang;Xu Yongfeng;Han Youhua(Research Institute of Solar Energy,Yunnan Normal University,Kunming 650500,China;School of Physics and Electronic Information Technology,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学太阳能研究所,昆明650500 [2]云南师范大学物理与电子信息学院,昆明650500

出　　处：《太阳能学报》2020年第4期30-36,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51666018);中国-老挝可再生能源利用联合实验室共建项目(2015DFA60120)。

摘　　要：为克服太阳能空调间隙性制冷,解决长时间稳定供冷问题,搭建一种光伏直驱冰蓄冷空调系统。针对系统在不同工况下运行稳定性以及不同工作模式下蓄冷供冷特性进行实验研究。实验表明,系统采用19 m^2光伏组件,保障系统稳定运行的辐照度下限为148 W/m^2。系统采用制冰蓄冷后融冰供冷模式运行,制冷系统额定输入电功率为2.2 kW,制冰量为165 kg,COP为0.23。研究发现,制冰蓄冷过程中系统COP随蒸发器表面冰层厚度的增加而减少,因此优化系统运行模式为制冰蓄冷并同时融冰供冷模式,COP达到0.36,较优化前提升56%。To overcome the solar energy air conditioning intermittent refrigeration and solve the problem of cooling stably for a long time,a photovoltaic direct-driven ice cool storage air conditioning system has been established.Under different working conditions,the stability of system is studied experimentally.At the same time,the cold storage and cooling characteristics of the system are studied experimentally under different operating modes.Experiment results show that the system composed of 19 m^2 panels can stable operation,when the radiation intensity is larger than 148 W/m^2,when system works in mode of ice making firstly and then ice melting cooling,rated input power is 2.2 kW,ice-making capacity is 165 kg,the COP is 0.23.The study find that the increase of the thickness of ice at evaporator surface lead to lower COP in the process of the ice storage.Thus,simultaneous operation of ice making and melting cooling is an optimal operating mode,in which the COP reaches 0.36.

关 键 词：光伏直驱 冰蓄冷 空调系统 性能 

分 类 号：TK511[动力工程及工程热物理—热能工程]