Research status and prospect of phase⁃change thermal storage floor in construction field

doi:10.19491/j.issn.1001-9278.2024.10.013

Abstract

Abstract:

Phase change materials （PCMs） is a type of thermal energy⁃storage materials with high latent heat⁃storage capacity. In the field of construction， PCMs can be used in the radiant floor heating system. Through the use of phase⁃change energy⁃storage floor， a large amount of latent heat can be stored and released to reach the purpose of cutting down the peak load of the heating system， thus achieving a building energy⁃saving effect. This paper reviewed the current thermal storage technology and phase⁃change floor radiant heating technology and briefly discussed the influence of physical and chemical properties of PCMs， floor structure， and encapsulation and shape⁃stabilization technologies on its thermal performance. Finally， its future research direction was outlooked.

Key words: phase change material, phase change thermal storage, radiant floor heating, indoor thermal environment

CLC Number:

TQ324

ZHENG Chenxiao, LIU Jiaqi, CUI Yangang, LIU Zeqin, TIAN Shen, CAO Yibao. Research status and prospect of phase⁃change thermal storage floor in construction field[J]. China Plastics, 2024, 38(10): 70-74.

Figures/Tables 4

References 30

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热力学性能	动力学性能	物理性质	化学性质	经济性
相变温度适宜	过冷度小	相变体积变化小	化学性稳定、热循环性能好	原料易得
相变潜热值大	结晶速率适宜	蒸汽压力低、密度大	不易燃、易爆或氧化	成本低廉
导热性能适宜		相变可逆性好	无毒无腐蚀

热力学性能	动力学性能	物理性质	化学性质	经济性
相变温度适宜	过冷度小	相变体积变化小	化学性稳定、热循环性能好	原料易得
相变潜热值大	结晶速率适宜	蒸汽压力低、密度大	不易燃、易爆或氧化	成本低廉
导热性能适宜		相变可逆性好	无毒无腐蚀

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