Experimental investigation of a dual purpose solar heating system

被引：24

作者：

Nematollahi, Omid ^{[1
]}

Alamdari, Pourya ^{[1
]}

Assari, Mohammad Reza ^{[2
]}

机构：

[1] Isfahan Univ Technol, Mech Eng Dept, Esfahan, Iran

[2] Univ Jundi Shapor, Mech Eng Dept, Dezful, Iran

来源：

ENERGY CONVERSION AND MANAGEMENT | 2014年 / 78卷

关键词：

Solar energy; Solar heaters; Dual purpose solar collector; Thermal efficiency; Vertical storage tank; THERMAL PERFORMANCE; STORAGE TANK; WATER-HEATER; COLLECTOR; OPTIMIZATION; SIMULATION; EFFICIENCY; RATIO;

D O I：

10.1016/j.enconman.2013.10.046

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, a dual purpose water and air heating system is experimentally investigated. The system consists of a dual purpose flat solar collector and a vertical water storage tank. Water and air have natural and forced convection in the collector, respectively. The reason why dual purpose systems are used is to achieve greater efficiency and lower heat dissipation. Furthermore, high temperature and high performance can be obtained using this solar collector. These systems can be used to heat water and air simultaneously or separately. The hot water can be utilized for domestic applications or as a PCM material for heating air through the night. Besides, the hot air can be used in air conditioning systems, industrial processes and dryers. Therefore, using these collectors brings high energy savings. Absorber plate temperature variation, storage tank average temperature, system efficiency and air velocity effects are presented. Moreover, hourly efficiency is compared for single purpose and dual purpose systems. The results indicate that the efficiency of the dual purpose system is 3 to 5% higher than a single purpose system. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：359 / 366

页数：8

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