自然风冷与预喷淋冷却对光伏组件的冷却效果  

Cooling performance between natural draft cooling system and pre-spray cooling system of photovoltaic modules

作　　者：何锁盈 刘天天 张齐 苗佳雨 张志远 高明[1] HE Suoying;LIU Tiantian;ZHANG Qi;MIAO Jiayu;ZHANG Zhiyuan;GAO Ming(Shandong Engineering Laboratory for High-efficiency Energy Conservation and Energy Storage Technology&Equipment,School of Energy and Power Engineering,Shandong University,Jinan 250061,China;Guoneng Shouguang Power Generation Co.Ltd.,Shouguang 262714,Shandong,China)

机构地区：[1]山东大学能源与动力工程学院/高效节能及储能技术与装备山东省工程实验室,山东济南250061 [2]国能寿光发电有限责任公司,山东寿光262714

出　　处：《西安工程大学学报》2022年第4期54-62,共9页Journal of Xi’an Polytechnic University

基　　金：山东省自然科学基金面上项目(ZR2021ME118);山东大学青年学者未来计划(2018WLJH73)。

摘　　要：为解决光伏组件工作温度高引起的光电转换效率低等问题,提出一种浮力驱动的光伏组件预喷淋冷却系统。基于Fluent2020R2软件分别建立了自然风冷和预喷淋冷却的光伏组件冷却系统,并以典型高温干旱工况为例,对比分析自然风冷和预喷淋冷却对光伏组件的冷却效果。结果表明:预喷淋冷却系统对进口空气具有明显的预冷效果,预喷淋冷却后光伏组件的平均温度比自然风冷低7 K、光电转换效率比自然风冷高0.43%。In order to solve the problem of low photoelectric conversion efficiency caused by high operating temperature of photovoltaic modules,a pre-spray cooling system for photovoltaic modules driven by buoyancy was proposed.Based on Fluent 2020R2 software,the photovoltaic module cooling systems of natural draft cooling and pre-spray cooling were established respectively.Their cooling performance under typical hot and drought conditions was compared.The research shows that the pre-spray cooling system obviously has a pre-cooling effect on the inlet air.After pre-spray cooling,the average temperature of photovoltaic modules is 7 K lower than that of natural draft cooling,and the photoelectric conversion efficiency is 0.43%higher than that of natural draft cooling.

关 键 词：光伏组件 冷却 自然风冷 预喷淋 

分 类 号：TK514[动力工程及工程热物理—热能工程]