Improved heat storage rate for an automobile coolant waste heat recovery system using phase-change material in a fin-tube heat exchanger

被引：137
作者：
Shon, Jungwook [1 ]
Kim, Hyungik [1 ]
Lee, Kihyung [1 ]
机构：
[1] Hanyang Univ, Dept Mech Engn, Ansan 426791, Gyeonggi Do, South Korea
来源：
APPLIED ENERGY | 2014年 / 113卷
基金：
新加坡国家研究基金会;
关键词：
Phase-change material (PCM); Latent heat; Coolant waste heat storage device; Heat storage rate; ENERGY;
D O I：
10.1016/j.apenergy.2013.07.049
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this study, the actual heat transfer coefficient of a phase-change material (PCM) was measured experimentally with the purpose of improving the heat storage rate of an automotive coolant waste heat storage system using the latent heat of the PCM. The heat transfer rate and time required to store heat was theoretically analyzed in the system where engine coolant was heated by a fin-tube heat exchanger filled with solid PCM. The amount of heat storage necessary for sufficient heating of vehicle coolant was calculated, and the appropriate amount of PCM was determined accordingly. Based on this data, a heat exchanger capable of storing heat under the lowest possible influence of natural convection and conduction thermal resistance of the PCM was designed, and its estimated heat storage rate was calculated. We identified the most effective methods to improve the heat storage rate and efficiency of the PCM-filled heat exchanger. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：680 / 689
页数：10
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