首页|期刊导航|湖南大学学报（自然科学版）|Numerical Study of Thermal Performance of Phase Change Material Energy Storage Floor in Solar Water Heating System
湖南大学学报（自然科学版）2009，Vol.36Issue(z1)：141-145,5.
Numerical Study of Thermal Performance of Phase Change Material Energy Storage Floor in Solar Water Heating System
Numerical Study of Thermal Performance of Phase Change Material Energy Storage Floor in Solar Water Heating System
摘要
Abstract
The conventional solar heating floor system contains a big water tank to store energy in the day time for heating at night,which takes much building space and is very heavy.In order to reduce the water tank velume even to cancel the tank,a novel structure of integrated water pipe floor heating system using shape-stabi-lized phase change materials (SSPCM) for thermal energy storage was developed.A numerical model was devel-oped to analyze the performance of SSPCM floor heating system under the intermittent heating condition,which was verified by our experimental data.The thermal performance of the heating system and the effects of various factors on it were analyzed numerically.The factors including phase transition temperature,heat of fusion,ther-real conductivity of SSPCM and thermal conductivity of the decoration material were analyzed.The results show that tm and kd are the most import influencing factors on the thermal performance of SSPCM floor heating sys-tem,since they determine the heat source temperature and thermal resistance between SSPCM plates and indoor air,respectively.Hm should be large to store enough thermal energy in the day time for nighttimes heating.The effects of KP can be ignored in this system.The SSPCM floor heating system has potential of making use of the daytime solar energy for heating at night efficiently in various climates when its structure is properly designed.关键词
phase change material/energy storage/solar water heatingKey words
phase change material/energy storage/solar water heating分类
能源科技引用本文复制引用
ZENG Ruo-lang,WANG Xin,ZHANG Yin-ping,DI Hong-fa,ZHANG Qun-li..Numerical Study of Thermal Performance of Phase Change Material Energy Storage Floor in Solar Water Heating System[J].湖南大学学报（自然科学版）,2009,36(z1):141-145,5.基金项目
Foundation Supported by National 11th Five-Year Plan of Dept.of Science,China(2006BAA04B02,2006BAJ02A09) （2006BAA04B02,2006BAJ02A09）
