An Experimental Study of Free Convection in Compound Parabolic Concentrator (CPC) Cavities-Reference-Cited by-同舟云学术

An Experimental Study of Free Convection in Compound Parabolic Concentrator (CPC) Cavities

Published:1988-11-01 Issue:4 Volume:110 Page:293-298
ISSN:0199-6231
Container-title:Journal of Solar Energy Engineering
language:en
Short-container-title:

Author:

Chew T. C.¹,Wijeysundera N. E.¹,Tay A. O.¹

Affiliation:

1. Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 0511

Abstract

An experimental study of the free convection heat transfer between the cylindrical absorber and the flat top of a compound parabolic concentrator (CPC) is described. Results are obtained for a range of absorber temperatures and four CPC cavity heights. For similar conditions of operating temperature, the heat transfer from a cylinder in free air is about 30 to 50 percent higher than in a CPC cavity. Two correlations for Nusselt and Grashof numbers have been obtained using the equivalent length and the cavity height as the characteristic length of the system.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/solarenergyengineering/article-pdf/110/4/293/5665644/293_1.pdf

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