变转速光伏直驱分级制冷冰箱的实验研究  

Experimental Study of a Variable Speed Photovoltaic Direct-Driven Staged Refrigerator

作　　者：郭泽伟 季杰[1] GUO Ze-wei;JI Jie(Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China)

机构地区：[1]中国科学技术大学热科学和能源工程系,合肥230027

出　　处：《新能源进展》2020年第4期291-295,共5页Advances in New and Renewable Energy

摘　　要：为提高制冰速率,提出了一种变转速的光伏直驱双蒸发器分级冰箱,并对其进行实验研究。分别研究冰箱的制冷模式、环境温度变化和光伏板-电压放大器匹配对制冰性能的影响。与非速冷模式相对,速冷模式冰箱提前1.5h开始制冰,冷却速率提高62.5%;环境温度从10℃变化到30℃,冷却速率下降37.2%;150W-360倍与125W-300倍两种光伏板和电压放大器组合,速冷模式下前者比后者冷却速率提高了18.6%,制冰量提高27.8%。实验结果表明,双蒸发器分级冷却方案可以实现速冷,环境温度对冰箱的速冷性能影响显著,光伏板和电压放大器合理匹配能有效提高冰箱的性能。For improving the ice-making rate,a variable-speed photovoltaic direct-driven dual-evaporator staged refrigerator was proposed and studied experimentally.The impacts of refrigeration mode,ambient temperature and photovoltaic panel-voltage amplifier matching on the performance of the refrigerator were studied respectively.Compared with the non-quick cooling mode,the quick cooling mode starts ice making 1.5 hours in advance,and the cooling rate increased by 62.5%.When the ambient temperature changes from 10℃to 30℃,the cooling rate decreased by 37.2%.Compared with 125 W photovoltaic panel and 300 times voltage amplifier,the cooling rate of 150 W photovoltaic panel and 360 times voltage amplifier increased by 18.6%,and the amount of ice increased by 27.8%.The dual-evaporator staged refrigeration scheme can achieve the purpose of quick cooling.

关 键 词：光伏直驱 变转速 双蒸发器 快速制冷 

分 类 号：TK511.3[动力工程及工程热物理—热能工程]