Abstract
Gas turbine (GT) power plants are of major interest because of their power capacity and lower investment. However, engineers and researchers still struggle in order to maximize their energy-economic efficiency and reduce their greenhouse gas emissions. These targets were formerly simulated using numerical integration, and uncommonly are tackled experimentally. In this work, a numerical analytical model has been established emphasizing the effect of pressure ratio on simple and regenerative gas turbine cycle performance which is successively used in the energy and exergy analysis of the power system. The elaborated analytical model permits a simple and quick calculation of maximum power output and efficiency based on pressure ratio and turbine inlet temperature using a direct and exact equation which can generate a rapid calculation for specific parameters. These equations will be helpful for designers and industrialists. The established analytical calculation is validated against some numerical examples and available data, and the agreement is observed to be fairly acceptable for such a universal and quite simple analytical model.
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