A modified tubeless solar collector partially filled with porous substrate

被引：76

作者：

Al-Nimr, MA ^{[1
]}

Alkam, MK ^{[1
]}

机构：

[1] Jordan Univ Sci & Technol, Dept Mech Engn, Irbid, Jordan

来源：

RENEWABLE ENERGY | 1998年 / 13卷 / 02期

关键词：

D O I：

10.1016/S0960-1481(97)00047-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this work, the thermal performance of a conventional tubeless collector is improved by inserting porous substrates at the inner side of the collector absorber plate. The porous substrates improve the convective heat transfer coefficient between the absorber plate and the fluid. This improvement is investigated numerically and its effects on the efficiency and the useful gain of the collector are evaluated. It is found that inserting the porous substrate may raise the collector efficiency by 3-32% especially at high Values of the overall heat loss coefficient. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：165 / 173

页数：9

共 8 条

[1]

[Anonymous], APPL SCI RES

[2]

BEIKIRCHER T, 1996, ASME, V118, P157

[3]

DUFFIE JA, 1991, SOLAR ENG THERMAL PR, pCH5

[4]

Issa M., 1990, International Journal of Solar Energy, V8, P81, DOI 10.1080/01425919008909712

[5] Inherent limitations of volumetric solar receivers [J].

Kribus, A ;

Ries, H ;

Spirkl, W .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1996, 118 (03) :151-155

[6]

Saidov M. S., 1994, Applied Solar Energy, V30, P23

[7]

Smirnov S. V., 1995, Applied Solar Energy, V31, P72

[8] ON THE LIMITATIONS OF THE BRINKMAN-FORCHHEIMER EXTENDED DARCY EQUATION [J].

VAFAI, K ;

KIM, SJ .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1995, 16 (01) :11-15

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