A thermoeconomic model of a novel hybrid solar gas-turbine power plant with an air-based bottoming cycle has been developed, allowing its thermodynamic, economic, and environmental performance to be analyzed. Multi-objective optimization has been performed to identify the trade-offs between two conflicting objectives: minimum capital cost and minimum specific CO2 emissions. In-depth thermoeconomic analysis reveals that the additional bottoming cycle significantly reduces both the levelized cost of electricity and the environmental impact of the power plant (in terms of CO2 emissions and water consumption) when compared to a simple gas-turbine power plant without bottoming cycle. Overall, the novel concept appears to be a promising solution for sustainable power generation, especially in water-scarce areas.
Air-Based Bottoming-Cycles for Water-Free Hybrid Solar Gas-Turbine Power Plants
Contributed by the Cycle Innovations Committee of ASME for publication in the Journal of Engineering for Gas Turbines and Power. Manuscript received June 27, 2013; final manuscript received July 10, 2013; published online September 6, 2013. Editor: David Wisler.
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Sandoz, R., Spelling, J., Laumert, B., and Fransson, T. (September 6, 2013). "Air-Based Bottoming-Cycles for Water-Free Hybrid Solar Gas-Turbine Power Plants." ASME. J. Eng. Gas Turbines Power. October 2013; 135(10): 101701. https://doi.org/10.1115/1.4025003
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