摘要
本文研究了相变材料(PCM)在变电站预制舱这类高内热源型建筑的应用及其在墙体中的设计优化。从降低全年空调能耗和高峰电网用电负荷的调温节能角度,围绕墙内安装位置和厚度两个维度研究了相变材料在变电站预制舱墙体结构中的优化设计方案。典型日能耗模拟表明,将相变材料设计在靠墙体内侧更具节能效果,且综合考虑600~1000W的内热源强度,相变材料的优化设计厚度为25mm。相变材料使得墙体内表面温度具有“削峰”的典型特征,具有明显的调温节能效应,在高温典型日可令墙内表面温度峰值降低1℃以上。
In this paper,the application of phase change materials(PCM)in high internal heat source buildings such as prefabricated cabins in substations and the design optimization in walls are studied.From the perspective of reducing the energy consumption of air conditioning throughout the year and regulating the temperature and energy conservation of peak power grid load,the optimal design scheme of phase change materials in the wall structure of prefabricated cabin of substation is studied around the installation position and thickness of the wall.The simulation of typical daily energy consumption shows that the phase-change material is designed close to the inner side of the wall,which has more energy-saving effect.In addition,the optimized design thickness of the phase-change material is 25 mm,considering the strength of the internal heat source of 600-1000 W.The PCM makes the inner surface temperature of the wall have the typical characteristics of"peaking",and has obvious effect of temperature regulation and energy saving.
作者
郑亚飞
唐溯
许晓玲
刘玉雷
翟晓强
ZHENG Yafei;TANG Su;XU Xiaoling;LIU Yulei;ZHAI Xiaoqiang(State Grid Shanghai Municipal Electric Power Company,Shanghai 200240,China;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;POWERCHINA Shanghai Electric Power Engineering Co.,Ltd.,Shanghai 200240,China)
出处
《制冷技术》
2024年第3期60-66,共7页
Chinese Journal of Refrigeration Technology
基金
国网上海市电力公司科技(No.KY-2021-018)。
关键词
变电站预制舱
相变材料
调温节能
Substation prefabricated cabin
Phase change material
Temperature regulation and energy saving
作者简介
翟晓强(1972-),男,教授,博士。研究方向:可再生能源转化、蓄存及其在建筑中的高效利用等。联系地址:上海市闵行区东川路800号上海交通大学,邮编200240。联系电话:021-34206296。E-mail:xqzhai@sjtu.edu.cn。
