Experimental investigation on heat transfer characteristics of a new radiant floor system with phase change material 被引量：1

新型相变蓄能辐射地板系统传热特性实验研究（英文）

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摘要 In order to improve the heat transfer characteristics of the traditional phase change material（PCM） floor, a new double-layer radiant floor system with PCM is proposed, which can store thermal or cold energy in the off-peak period and use them in the peak period. An experimental setup was developed to study the heat transfer characteristics of the new system under both cooling and heating modes. The experimental results show that the double-layer radiant floor system with PCM can meet both the cold and thermal requirements of users. Moreover, with the same duration of the thermal energy storage process, the increase of water temperature supplied to the system can improve the heat transfer characteristics of the system but lead to the discomfort of users. On the other hand, if the air temperature at the end of the thermal energy storage process is the same under different conditions, the increase of supplied water temperature will decrease the thermal energy storage time and ensure the comfort of users. 为了提高传统相变蓄能辐射地板系统的传热性能,提出了一种新型双层相变蓄能辐射地板系统,该系统可以在夜间利用低谷低价电进行蓄能,并在白天将所蓄的能量提供给用户使用.对双层相变蓄能辐射地板系统在供热和供冷模式下的传热性能进行了实验研究.结果表明,该系统在供热和供冷模式下均可以满足用户的需求.在相同时间的蓄热过程中,提高供水水温可以提高系统的传热性能,但同时也会降低用户的舒适程度.而当系统蓄热过程结束时,如果不同工况下空气温度相同,则提高供水温度可以减少蓄热时间并保证用户的舒适度.

作者夏燚张小松

机构地区东南大学能源与环境学院南京师范大学能源与机械工程学院

出处《Journal of Southeast University(English Edition)》 EI CAS 2015年第4期496-500,共5页 东南大学学报（英文版）

基金 The National Science and Technology Pillar Program during the 12th Five-Year Plan Period(No.2011BAJ03B14) the National Natural Science Foundation of China(No.51376044)

关键词 ENERGY-SAVING radiant floor phase changematerial DOUBLE-LAYER heat transfer characteristics 节能辐射地板相变材料双层传热特性

分类号 TU831 [建筑科学—供热、供燃气、通风及空调工程]

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