Nusselt number and friction factor correlations for solar air heater duct having artificially roughened absorber plate

被引：145

作者：

Bhushan, Brij ^{[1
]}

Singh, Ranjit ^{[1
]}

机构：

[1] Beant Coll Engn & Technol, Dept Mech Engn, Gurdaspur 143521, Punjab, India

来源：

SOLAR ENERGY | 2011年 / 85卷 / 05期

关键词：

Solar air heater; Artificial roughness; Nusselt number; Friction factor; RIB ROUGHNESS; TRANSVERSE; CHANNEL; FLOW;

D O I：

10.1016/j.solener.2011.03.007

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：

An experimental investigation has been carried out for a range of system and operating parameters in order to analyse effect of artificial roughness on heat transfer and friction in solar air heater duct having protrusions as roughness geometry. An increase in heat transfer and friction loss has been observed for duct having roughened absorber plate. Experimental data have been used to develop Nusselt number and friction factor correlations as function of system and operating parameters for predicting performance of the system having investigated type of roughness geometry. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1109 / 1118

页数：10

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