Thermal Science 2016 Volume 20, Issue suppl. 5, Pages: 1237-1249
https://doi.org/10.2298/TSCI16S5237P
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Cited by
Optical analysis and performance evaluation of a solar parabolic dish concentrator
Pavlović Saša R. (Faculty of Mechanical Engineering, Nis)
Vasiljević Darko M. (Institute of Physics, Photonics Center, Belgrade)
Stefanović Velimir P. (Faculty of Mechanical Engineering, Nis)
Stamenković Zoran M. (Faculty of Mechanical Engineering, Nis)
Bellos Evangelos A. (National Technical University of Athens, School of Mechanical Engineering, Zografou, Athens, Greece)
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
Projekat Ministarstva nauke Republike Srbije, br. III42006: Research and
development of energy and environmentally highly effective polygeneration
systems based on renewable energy resources i br. III45016: Fabrication and
characterization of nanophotonic functional structures in biomedicine and
informatics