THERMAL SCIENCE

International Scientific Journal

Saša R. Pavlović

,

Darko M. Vasiljević

,

Velimir P. Stefanović

,

Zoran M. Stamenković

,

Evangelos A. Bellos

OPTICAL ANALYSIS AND PERFORMANCE EVALUATION OF A SOLAR PARABOLIC DISH CONCENTRATOR

ABSTRACT
In this study, the optical design of a solar parabolic dish concentrator is presented. The parabolic dish concentrator consists from 11 curvilinear trapezoidal reflective petals made of polymethyl methacrylate with special reflective coating. The dish diameter is equal to 3.8 m and the theoretical focal point distance is 2.26 m. Numerical simulations are made with the commercial software TracePro from Lambda Research, USA, and the final optimum position between absorber and reflector was calculated to 2.075 m; lower than focus distance. This paper presents results for the optimum position and the optimum diameter of the receiver. The decision for selecting these parameters is based on the calculation of the total flux over the flat and corrugated pipe receiver surface; in its central region and in the peripheral region. The simulation results could be useful reference for designing and optimizing of solar parabolic dish concentrators as for as for CFD analysis, heat transfer and fluid flow analysis in corrugated spiral heat absorbers.
KEYWORDS
paraboloid dish concentrator, ray tracing analysis, TracePro software, spiral geometry, scheme macro language
PAPER SUBMITTED: 2016-03-31
PAPER REVISED: 2016-08-18
PAPER ACCEPTED: 2016-09-30
PUBLISHED ONLINE: 2016-12-25
DOI REFERENCE: https://doi.org/10.2298/TSCI16S5237P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Supplement 5, PAGES [S1237 - S1249]
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OPTICAL ANALYSIS AND PERFORMANCE EVALUATION OF A SOLAR PARABOLIC DISH CONCENTRATOR

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence