Numerical investigation of heat transfer enhancement inside a parabolic trough solar collector using dimpled absorber
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Date
2017-12-15
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جامعة الوادي - university of el oued
Abstract
Three dimensional numerical investigation of heat transfer enhancement in a non-uniformly heated parabolic trough solar collector using dimpled absorber under turbulent flow was incorporated in the current paper. The governing equations were solved using the finite volume methods (CFD) with certain assumptions and appropriate boundary conditions. The Monte Carlo ray trace technique was applied to obtain the heat flux distribution around the absorber tube. The numerical results were validating with the empirical correlations existing in the literature and good agreement was obtained. The present results demonstrate that the inclusion of inserts provide a good performance in heat transfer, also the receiver temperature gradient are shown to reduce with the use of geometrical modification, the absorber geometry have a remarkable effect on the HTF velocity distribution
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Article
Keywords
numerical investigation, parabolic trough solar collector, heat transfer enhancement, turbulent flow, dimpled tube
Citation
Benabderrahmane, Amina. Benazza ,Abdelylah. Numerical investigation of heat transfer enhancement inside a parabolic trough solar collector using dimpled absorber. International Journal of Energetica. Vo2. No 02.15/12/2017.faculty of technology. university of el oued. [visited in ../../….]. available from [copy the link here]