A Comparative Thermoeconomic Study of Hybrid Solar Gas-Turbine Power Plants
2013 (English)In: Proceedings of the ASME Turbo Expo, 2013Conference paper (Refereed)
The construction of the first generation of commercial hybrid solar gas-turbine power plants will present the designer with a large number of choices. To assist decision making, a thermoeconomic study has been performed for three different power plant configurations, namely simple- and combined- cycles as well as simple-cycle with the addition of thermal energy storage. Multi-objective optimization has been used to identify Pareto-optimal designs and highlight the trade-offs between minimizing investment costs and minimizing specific CO2 emissions. The solar hybrid combined-cycle plant provides a 60% reduction in electricity cost compared to parabolic trough power plants at annual solar shares up to 20%. The storage integrated designs can achieve much higher solar shares and provide a 7 – 13% reduction in electricity costs at annual solar shares up to 90%. At the same time, the water consumption of the solar gas-turbine systems is significantly lower than conventional steam-cycle based solar power plants.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-126923DOI: 10.1115/GT2013-94046ScopusID: 2-s2.0-84890144832ISBN: 978-079185518-8OAI: oai:DiVA.org:kth-126923DiVA: diva2:642587
ASME Turbo Expo 2013, Turbine Technical Conference and Exposition, GT 2013; San Antonio, Tx, United States, 3-7 June 2013
QC 201401072013-08-222013-08-222014-01-23Bibliographically approved