摘要
翅片盘管可以强化盘管外侧的换热.本文研制了一种翅片盘管式相变储热器,以石蜡R54为相变材料,在3组不同流量工况下,分别对3种不同翅片间距的储热器进行了实验研究,分析了其不同工况下的温度分布和传热系数情况,得出了该类型相变储热器的储热效率及传热系数与流量成正比、与翅片间距成反比的结论.
It is well known that attaching fins on the tube surfaces can enhance the heat transfer into and out of the phase change materials. The results of an experimental study of the thermal characteristics of finned coil latent heat storage unit (LHSU) using paraffin as the phase change material (PCM) are presented. The measurement is carried out under 3 fin pitches and 3 water flow rates in the charging and discharging process respectively. The temperature distribution and heat transfer coefficient in different cases are analyzed. It is concluded that the heat storage efficiency and heat transfer coefficient of this type of phase-change heat storage unit are proportional to the flow rate and inversely proportional to the spacing of the fins.
作者
李南烁
汤梓聪
伍健宜
张锦梁
谢安治
陈观生
Li Nan-shuo;Tang Zi-cong;Wu Jian-yi;Zhang Jin-liang;Xie An-zhi;Chen Guan-sheng(School of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China)
出处
《广东工业大学学报》
CAS
2019年第2期91-96,共6页
Journal of Guangdong University of Technology
基金
国家科技支撑计划项目(2014BAA01B02)
佛山市顺德区产学研合作项目(2014CXY12)
关键词
翅片盘管
相变
储热
石蜡
传热
finned coil
phase change
heat storage
Paraffin wax
heat transfer
作者简介
李南烁(1991-),男,硕士研究生,主要研究方向为相变储能技术;通信作者:陈观生(1970-),男,副教授,主要研究方向为相变储能及太阳能热利用技术.E-mail:chengs@gdut.edu.
