Abstract
A turbine plant using solar energy as the heat source has been studied. This type of facility can be used to drive a pump or provide electric power generation. It is useful for dry areas, is easily operated and maintained and is thermally efficient; properties which allow for smaller, and therefore cheaper, installation. In this work, a computer-aided optimization analysis was made for a regenerative solar gas turbine, including a parametric study of the compressor, regenerator, concentrator and turbine efficiencies. The effects of the maximum cycle operating temperature and engine pressure ratio on thermal efficiency and power output, and the corresponding optimum pressure ratios were determined. It was found that turbine efficiency, compressor efficiency and maximum cycle temperature have the strongest influence on the cycle thermal efficiency and power output. The regenerator and concentrator efficiencies have smaller effects. The optimum pressure ratio for maximum work and efficiency is similarly affected by the parameters, although the regenerator has a greater effect than the receiver.
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