Exergoeconomic and exergoenvironmental analysis of an integrated solar gas turbine/combined cycle power plant

摘要

Integration of solar power to Combined Cycle Power Plants is a solution attracting increasing interest, bridging solar thermal technology to a well-proven energy conversion solution. The integration is attractive for countries aiming to pass to natural gas as an energy feedstock and it could improve the environmental performance. In order to identify the performance and potential environmental benefits, a model of the plant was applied. It covered an annual operation period and included the effects of surroundings variables. The model allows to predict the power plant performance, and calculates a complete exergy balance for all the components of the complex plant. The calculations are repeated for referential CCGT and for the Integrated Solar CCGT.