Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EXPERIMENTAL EVALUATION OF HEAT LOSS FROM A MULTI-TUBE TRAPEZOIDAL CAVITY RECEIVER FOR A LINEAR FRESNEL SOLAR CONCENTRATOR CONSIDERING NATURAL AND FORCED CONVECTION CONDITIONS
Submission Author:
Selen Sousa , SC
Co-Authors:
Selen Sousa, Alexandre Bittencourt de Sa, Victor César Pigozzo Filho, Júlio Passos
Presenter: Selen Sousa
doi://10.26678/ABCM.COBEM2017.COB17-1304
Abstract
The minimization of heat losses if of primary importance upon designing a LFC’s absorber. Additionally, the heat losses may be influenced by several parameters such as cavity geometry, materials, coating, temperature and ambient conditions. In this work, an indoors multi-tube trapezoidal cavity setup was experimentally studied. Heat losses were evaluated for natural and forced convection conditions. Also, the presence of a window glass, to minimize convection heat losses, was studied. The results showed a significant difference in heat losses considering the window glass and also that heat losses increases along wind speed.
Keywords
Trapezoidal Cavity Absorber, Solar Energy, Linear Fresnel Concentrator, Experimental tests
