安全与环境工程2025，Vol.32Issue(4)：70-77,8.DOI:10.13578/j.cnki.issn.1671-1556.20250025
基于天空辐射制冷的户内变电站降温研究
Research on cooling of indoor substation based on sky radiative cooling
摘要
Abstract
As an important part of the power grid,indoor substations have attracted widespread attention for their high energy consumption and poor heat dissipation.To address this problem,a cold storage and air supply cooling system based on sky radiative cooling was proposed to cool indoor substations.An experimental test platform for the system was built to test its cold storage and cooling characteristics.The heat transfer model of the system was verified based on measured data.The experimental results show that the cooling system has good cooling storage performance at night in summer and autumn.The temperature of the cold storage water tank drops by 6.5 ℃ and 9.0 ℃ respectively.The average indoor temperature of the indoor substation module during the daytime in autumn is stable at 18.0 ℃,while the indoor temperature without the cooling system is 40.0 ℃.The average coefficient of performance(COP)of the system is 8.38,and the cooling and energy-saving effect of the system is significant.The relative errors of the measured and simulated values of the outlet water temperature and total cooling capacity of the sky radiative cooling module are less than 5％,and the established system heat transfer model has good reliability.This study provides an energy-saving solution for low-energy cooling of indoor substations and provides theoretical basis for the design and operation of the solution.关键词
天空辐射制冷/储冷送风/户内变电站/蓄冷性能/性能系数Key words
sky radiative cooling/cold storage and air supply/indoor substation/cooling storage performance/coefficient of performance分类
资源环境引用本文复制引用
陈晨,姚晗,韩慧娜,张亮,吕兵,严天,吴永佳,丁雁..基于天空辐射制冷的户内变电站降温研究[J].安全与环境工程,2025,32(4):70-77,8.基金项目
国网河南省电力公司科技项目(5217L024000T) （5217L024000T）
