详细信息
Experimental and numerical investigation on heating performance comparison of air conditioning heating systems based on water-phase change material heat storage system and water heat storage system ( SCI-EXPANDED收录 EI收录)
文献类型:期刊文献
英文题名:Experimental and numerical investigation on heating performance comparison of air conditioning heating systems based on water-phase change material heat storage system and water heat storage system
作者:Hu, Biao[1,2];Wang, Hui[1];Yang, Jinxin[2];Li, Jiachen[1];Li, Chunwang[1];Ren, Xiaogeng[1]
第一作者:Hu, Biao
通讯作者:Wang, H[1]
机构:[1]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[2]Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China
第一机构:北京联合大学生物化学工程学院
通讯机构:[1]corresponding author), Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;
年份:2025
卷号:331
外文期刊名:ENERGY
收录:;EI(收录号:20252418589671);Scopus(收录号:2-s2.0-105007770755);WOS:【SCI-EXPANDED(收录号:WOS:001518602500014)】;
基金:This work was supported by the National Natural Science Foundation of China (No.52306290) .
语种:英文
外文关键词:Water-phase change material heat storage; system; Water heat storage system; Heating performance; Experimental and numerical research
摘要:In recent years, researchers have increasingly focused on salt hydrate phase change materials(PCMs) as preferred heat storage materials for valley electric building heating and solar hot water applications. In this work, sodium acetate trihydrate was selected as the latent heat storage medium, while water served as the sensible heat storage medium in a water-PCM heat storage system. The phase transition properties of the selected PCM were characterized and the heating performance of the system was investigated under various testing conditions including different heat storage medium, with or without pipe insulation and varying water supply direction. The results indicate that the phase transition temperature of the selected PCM ranges from 56.20 degrees C to 64.61 degrees C, with a latent heat of 256.18 kJ kg-1. A comparison analysis between the pure water heat storage system (sensible heat storage system) and the water-PCM heat storage system reveals that the latter exhibits superior heat storage performance and a longer heating duration can be achieved within the same volume. Numerical simulations further suggest that the selected PCM could be completely melted within 380 min. Both experimental and numerical findings highlight the significant potential of salt hydrates for heat energy storage in building heating applications.
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