Performance study of a novel solar air collector

被引：58

作者：

Peng, Donggen ^{[1
]}

Zhang, Xiaosong ^{[2
]}

Dong, Hua ^{[3
]}

Lv, Kun ^{[4
]}

机构：

[1] Nanchang Univ, Sch Civil Engn & Architecture, Nanchang 330031, Peoples R China

[2] Southeast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China

[3] Qingdao Technol Univ, Sch Municipal & Environm Engn, Qingdao 266033, Peoples R China

[4] TJPM, Shanghai 200092, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2010年 / 30卷 / 16期

关键词：

Solar air collector; Pin-fin arrays; Thermal efficiency; OFFSET RECTANGULAR PLATE; ABSORBER PLATES; THERMAL PERFORMANCES; DRYING APPLICATIONS; EXERGY ANALYSIS; HEATER; EFFICIENCY; FLOW; OPTIMIZATION; DESIGN;

D O I：

10.1016/j.applthermaleng.2010.07.010

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A novel solar air collector of pin-fin integrated absorber was designed to increase the thermal efficiency. According to experimental results, the average thermal efficiency of twenty-five kinds of pin-fin arrays collector reach 0.5-0.74 compared to the solar transmittance of 0.83 for the glazing. A correlation equation can be put forward to reflect the maximum thermal efficiency (eta(max)) of twenty-five kinds of pin-fin arrays collectors as function of dimensionless pin-fin span (s/d) and dimensionless pin-fin height (h/d). By theoretical calculation, the mathematic models of thermal efficiency of twenty-six collectors including flat-plate collector are obtained representing the influences of solar irradiation and inlet conditions of air stream on thermal efficiency. In the performance analysis of varying flow rate on PZ7-11.25 pin-fin arrays collector, the correlation equation on heat transfer coefficient is obtained and the efficiency variation vs. air flow rate is determined in this work. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2594 / 2601

页数：8

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