Study of Heat Losses from Cylindrical Cavity Receiver of Solar Concentrator

Abstract:

In this paper heat losses from cavity receiver of solar concentrators are presented. Convective and radiative losses for specified cavity receiver are estimated by MATLAB programming and effect of the various parameters is studied. Radiation losses are analyzed for operating temperature in range of 127°C to 527 °C and aspect ratio of 0.5 to 2.5. Convective losses are investigated for operating temperature in range of 127°C to 527 °C, inclination angle from 0 to 90^o, aspect ratio of 0.5 to 2.5 and wind effect for 0 to 10 m/s. Radiation losses and convective losses increases as operating temperature of cavity receiver increases. The convective losses are more for sidewise facing cavity (0^o inclination) and less for downward facing cavity (90^o inclination). As aspect ratio and wind velocity increases, convective loss increases.

• Periodical: Applied Mechanics and Materials (Volumes 541-542)
• Pages: 996-1001
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.541-542.996
• Online since: March 2014
• Authors: Sanjay D. Barahate, P.R. Dongarwar, Vinod C. Shewale
• Keywords: Cavity Receiver, Convection Loss, Wind Effect

References

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