الفهرس 
Solar Dish ConcentratorOnly 14 pages are availabe for public view
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Abstract
Recently, Dish-Stirling system is recognized as the most efficient existing technology of solar power. The present study is intended to design and evaluate the performance of a solar Stirling engine of β-type under Egyptian climate.
A detailed three-dimensional CFD simulation and analysis of the GPU-3 engine are performed. The performance of six different eddy-viscosity models are firstly assessed to identify the most appropriate model for the engine simulation. A thorough characterization of the thermal and fluid flow fields during the cycle is presented.A comprehensive energy analysis for the engine is conducted to accurately identify the sources and magnitudes of thermodynamic losses.
Additionally,the design of the solar Stirling engine along with the suitable dish concentrator are performed. Several parabolic dishes with different rim angles and number of facets are investigated to optimally design the dish.Different relative positions of the receiver aperture to the dish focal plane are tested to reach the optimal position.A design for a cavity receiver that involves a new structure of the heater tubes is performed.A comprehensive energy analysis of the designed solar Stirling engine with the multi-facet dish concentrator is carried out.Finally, annual performance evaluation of the designed solar Dish-Stirling engine is conducted under Egyptian climate.