Encapsulated PCM based double pass solar air heater: A comparative experimental study

被引：31
|
作者：
Sudhakar, P. [1 ]
Cheralathan, M. [1 ]
机构：
[1] SRM Inst Sci & Technol, Dept Mech Engn, Kattankulathur 603203, Tamil Nadu, India
来源：
CHEMICAL ENGINEERING COMMUNICATIONS | 2021年 / 208卷 / 06期
关键词：
Double pass; Economic analysis; Paraffin wax; Phase change material; Solar air heater; Spherical encapsulation; PHASE-CHANGE MATERIAL; THERMAL PERFORMANCE; ENERGY; STORAGE;
D O I：
10.1080/00986445.2019.1641701
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
An experimental investigation on thermal performance of a solar air heater with and without the usage of spherically encapsulated phase change medium (PCM) is presented in this paper. The PCM, paraffin wax, is filled in spherical balls mounted on the holes of the absorber plate so that heat transfer area is slightly extended. A comparative study of three different configurations of the absorber plate is made. Parameters that influence the collector efficiency are recorded and discussed. The results obtained are compared with a conventional absorber plate without PCM for similar conditions. The mean efficiency obtained for conventional absorber plate without PCM is 31%, for flat absorber plate with PCM is 39%, and for inclined absorber plate with PCM is 43%. The encapsulation efficiency is 40% for flat plate absorber with PCM and 42.2% for inclined plate absorber with PCM and the approximate cost of heating 1?kg of air is INR 0.95/$0.014.
引用
收藏
页码：788 / 800
页数：13
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