Analysis of temperature regulation and heat storage effect of the combined phase change envelope in hot summer and cold winter zone

被引：6
|
作者：
Li, Min [1 ]
Gong, Wenjun [1 ]
Liu, Shuai [1 ]
机构：
[1] Southeast Univ, Jiangsu Key Lab Construction Mat, Nanjing 211189, Peoples R China
来源：
ENERGY | 2023年 / 266卷
基金：
中国国家自然科学基金;
关键词：
Temperature regulation; Heat storage effect; The combined PCM envelope; Hot summer and cold winter zone;
D O I：
10.1016/j.energy.2022.126518
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to study the character of heat storage and temperature regulation, a mathematical model of the thermal performance of an ideal passive energy storage building is established. Indoor thermal environment evaluation indexes of the passive buildings such as the temperature attenuation coefficient and supercooling degree/ superheating degree are proposed. The PCM (phase change materials) layer numbers, the total thickness and the thickness ratio of PCM layers of the combined PCM envelope are analyzed based on the simulation. The result shows that the combined envelope with two-layer PCM has better temperature regulation and heat storage effect. When the total thickness of the combined PCM envelope is 40 mm, and the thickness ratio of the PCM layer from the inside to the outside is13.3:26.7, the annual thermal comfort hours are the longest.
引用
收藏
页数：10
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