Experimental thermal performance analysis of finned tube-phase change material based double pass solar air heater

被引：149

作者：

Sajawal, Muhammad ^{[1
]}

Rehman, Tauseef-ur ^{[1
]}

Ali, Hafiz Muhammad ^{[2
]}

Sajjad, Uzair ^{[3
]}

Raza, Ali ^{[4
]}

Bhatti, Muhammad Sheheryar ^{[5
]}

机构：

[1] Univ Engn & Technol, Mech Engn Dept, Taxila 47050, Pakistan

[2] KFUPM, Mech Engn Dept, Dhahran 31261, Saudi Arabia

[3] Natl Chiao Tung Univ, Mech Engn Dept, Thermal Management & Energy Efficiency Lab, Hsinchu, Taiwan

[4] HITEC Univ, Mech Engn Dept, Taxila 47050, Pakistan

[5] Pakistan Navy Engn Coll, Mech Engn Dept, Karachi 75350, Pakistan

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2019年 / 15卷

关键词：

Phase change material; Finned tube; Energy storage; Solar air heater; Thermal management; ENERGY STORAGE; GRAPHENE NANOPLATELETS; IMPROVEMENT; COLLECTOR; DESIGN; FLAT; FOAM; PCM;

D O I：

10.1016/j.csite.2019.100543

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present experimental study is performed to investigate the thermal performances of double pass solar air heater comprising of phase change materials (PCM) contained in metallic finned tubes to have increased energy storage and heat transfer rate. Experimental results were also helpful in the evaluation of the charging and the discharging characteristics of the PCMs. The air heater is studied for three different configurations. In the first configuration, is no PCM used. In the second configuration, RT44HC having higher melting point filled in semi-circular finned tubes (SFT) on the upper pass of double pass solar air heater (DPSAH) as a thermal storage medium (TSM) is used. While the third configuration is a combination of the second configuration and RT18HC having lower melting point, filled in circular finned tubes (FT) as TSM placed in the lower pass to enhance the thermal storage capacity of solar air heater (SAH). The heater's thermal performance is evaluated for all configurations separately. It was revealed that the third configuration containing RT44HC and RT18HC in upper and lower passes respectively is the best among others for optimum heater performance.

引用

页数：12

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