Experimental and computational evolution of a shell and tube heat exchanger as a PCM thermal storage system

被引：252
作者：
Hosseini, M. J. [1 ]
Rahimi, M. [1 ,2 ]
Bahrampoury, R. [3 ]
机构：
[1] Golestan Univ, Dept Mech Engn, Gorgan, Iran
[2] Babol Univ Technol, Sch Mech Engn, Babol Sar, Iran
[3] KN Toosi Univ Technol, Dept Mech Engn, Tehran, Iran
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2014年 / 50卷
关键词：
Enthalpy method; Melting and solidification processes; Paraffin RT50; PCM; PHASE-CHANGE; ENERGY-STORAGE; NUMERICAL-ANALYSIS; SOLIDIFICATION; CONVECTION; BEHAVIOR; WATER;
D O I：
10.1016/j.icheatmasstransfer.2013.11.008
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A combined experimental and numerical study has been designed to study thermal behavior and heat transfer characteristics of Paraffin RT50 as a phase change material (PCM) during constrained melting and solidification processes inside a shell and tube heat exchanger. A series of experiments are conducted to investigate the effects of increasing the inlet temperature of the heat transfer fluid (HTF) on the charging and discharging processes of the PCM. The computations are based on an iterative, finite-volume numerical procedure that incorporates a single-domain enthalpy formulation for simulation of the phase change phenomenon. The molten front at various times of process has been studied through a numerical simulation. The experimental results show that by increasing the inlet HTF temperature from T-H = 70 degrees C to 75 and 80 degrees C, theoretical efficiency in charging and discharging processes rises from 81.1% to 88.4% and from 79.7% to 81.4% respectively. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：128 / 136
页数：9
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