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Four gas turbine systems are compared: simple gas turbine (SGT), gas turbine with evaporative inlet air cooler (EVGT), steam injection gas turbine (STIG) and steam injection gas turbine with evaporative inlet air cooler (ESTIG). These comparisons are done on the basis of conventional exergy analysis and the results show that the ESTIG cycle is the most advantageous for the designer. After determining...
Recently, the TLC (trilateral power cycle) has attracted significant interest as it provides better matching between the temperature profiles in the evaporator compared to conventional power cycles. This article investigates the performance of this cycle and compares it with those for the ORC (organic Rankine cycle) and the Kalina cycle, from the viewpoints of thermodynamics and thermoeconomics. A...
Air conditioning incorporating thermal storage, in which the cooling capacity needed for air conditioning is produced during the nighttime when the demand for air conditioning is small and then utilized to satisfy peak loads during the daytime, has received much attention recently. In this work, an air conditioning system consisting of a combination of LHTS (latent heat thermal storage) and VCR (vapor...
An exergoeconomic analysis is reported for a combined system with a net electrical output of 299 MW in which waste heat from a Gas Turbine-Modular Helium Reactor (GT-MHR) is utilized by two Organic Rankine Cycles (ORCs). A parametric study is also done to reveal the effects on the exergoeconomic performance of the combined system of such significant parameters as compressor pressure ratio, turbine...
An advanced exergy analysis is reported for a recently developed configuration of an externally-fired combined-cycle power plant integrated with biomass gasification. The results identify the potential for improvement of the overall system considering interactions among the components. It is found that interactions between the components are not very strong, i.e. the endogenous exergy destruction...
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