THERMAL PERFORMANCE ENHANCEMENT OF SOLAR AIR HEATERS, BY A FAN-BLOWN ABSORBER PLATE WITH RECTANGULAR FINS

被引：38

作者：

HACHEMI, A

机构：

[1] Laboraoire d'Aérodynamique, d'Hydrodynamique, et d'Energétique, Université de Valenciennes et du Hainault‐Cambrésis, Valenciennes, 59304

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 1995年 / 19卷 / 07期

关键词：

CONTRACTION; ENLARGEMENT; STAGGERED; PERFORMANCE;

D O I：

10.1002/er.4440190703

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：

The aim of this study is to provide a remedy for the low thermophysical properties of air, which is used as a fluid of transfer in solar collectors. A fully developed flow needs to be created by the use of staggered fin rows soldered under the absorber plate. The fluid flow undergoes contractions followed by expansions, which creates a fully developed turbulent flow, and increases the thermal heat transfer between the absorber plate and the air. The fins increase the heat transfer surface, from which an appreciable improvement of the thermal heat performance of solar air heaters has been found in comparison to those of solar air heaters with a plane absorber. In this work we have tested the influence of the dimension of the fins and the influence of the space between consecutive fin rows mounted in staggered rows.

引用

页码：567 / 577

页数：11

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