Journal ArticleDOI
Second law analysis of an irreversible Braysson cycle
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In this paper, the second-law analysis of an irreversible Braysson cycle is presented and the overall second law efficiency for the process at variable operating conditions is derived and plotted and for further pinpointing and thorough quantification of the losses, the component-wise second law efficiencies are also derived.Abstract:
This paper demonstrates the second-law analysis of an irreversible Braysson cycle. The overall second law efficiency for the process at variable operating conditions are being derived and plotted. In addition, for further pinpointing and thorough quantification of the losses, the component-wise second law efficiencies are also derived. It had been concluded that, the second law efficiency can be improved by changing the operating conditions of the cycle such as pressure, temperature, etc. In addition, a clear view of the thermodynamic losses occurring in each component is obtained and they too, can be minimised by tuning the operating conditions.read more
Citations
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Journal ArticleDOI
Multi-Objective Optimization of Thermo-Ecological Criteria-Based Performance Parameters of Reheat and Regenerative Braysson Cycle
TL;DR: The simultaneous optimization of performance parameters which reflect the thermo-ecological criteria to be satisfied by a power plant has resulted in values of 0.479, 0.327, and 0.922 for exergy efficiency, nondimensional power density, and ecological coefficient of performance, respectively.
Journal ArticleDOI
Energy and exergy based thermodynamic analysis of reheat and regenerative Braysson cycle
TL;DR: In this paper, the effects of maximum temperature, pressure ratio and number of compression stages on the cycle energy and exergy efficiency have been evaluated and it has been found that the exergy destruction in the combustion chamber and reheater put together accounts for more than 55% of the total exergy degradation.
Journal ArticleDOI
Parametric and optimization studies of reheat and regenerative Braysson cycle
TL;DR: In this paper, the effect of compressor and turbine inlet temperatures, temperature rise in a stage of multi-stage compression, individual component efficiencies and exit pressure of reheat turbine on the performance has been studied.
References
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On exergetics, economics and optimization of technical processes to meet environmental conditions
Mei Gong,Göran Wall +1 more
TL;DR: In this article, the authors introduce and clarify important concepts in the development of a sustainable engineering and propose Life Cycle Exergy Analysis (LCEA) as a method to better meet environmental conditions.
Journal ArticleDOI
A hybrid gas turbine cycle (Brayton/Ericsson): An alternative to conventional combined gas and steam turbine power plant
T H Frost,A Anderson,Brian Agnew +2 more
TL;DR: In this paper, a hybrid gas turbine cycle is proposed based on the conventional Brayton cycle for the high-temperature heat addition process while adopting the Ericsson cycle for low temperature heat rejection process, which incorporates the thermodynamic advantages of a combined gas and steam turbine (CCGT) cycle without the irreconstrainabilities of the boiler and the ancillarics of the steam turbine/condenser plant.
Journal ArticleDOI
Exergy analysis for a Braysson cycle
TL;DR: In this paper, an exergy analysis has been carried out for an irreversible Braysson cycle, and analytical formulae of power output and exergy efficiency are derived, and the influences of various parameters on the exergy performance are analyzed by numerical calculation.
Journal ArticleDOI
Power, power density and efficiency optimization of an endoreversible Braysson cycle
TL;DR: In this paper, the performance optimization of an endoreversible Braysson cycle with heat resistance losses in the hot and cold-side heat exchangers is performed by using finite-time thermodynamics.
Journal ArticleDOI
Powers and efficiency performance of an endoreversible Braysson cycle
TL;DR: In this article, the performance analysis of an endoreversible Braysson cycle with heat resistance losses in the hot and cold-side heat exchangers is presented, and the influences of the design parameters on the performance of the cycle are analyzed by detailed numerical examples.
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