The gas turbine engine works on the principle of the Brayton Cycle. One of the ways to improve the efficiency of the gas turbine is to make changes in the Brayton Cycle. In the present study, Brayton Cycle with intercooling, reheating and regeneration with variable temperature heat reservoirs is considered. Instead of the usual thermodynamic efficiency, the Second law efficiency, defined on the basis of lost work, has been taken as a parameter to study the deviation of the irreversible Brayton Cycle from the ideal cycle. The Second law efficiency of the Brayton Cycle has been found as a function of reheat and intercooling pressure ratios, total pressure ratio, intercooler, regenerator and reheater effectiveness, hot and cold side heat exchanger effectiveness, turbine and compressor efficiency and heating capacities of the heating fluid, the cooling fluid and the working fluid (air). The variation of the Second law efficiency with all these parameters has been presented. From the results, it can be seen that the Second law efficiency first increases and then decreases with increase in intercooling pressure ratio and increases with increase in reheating pressure ratio. The results show that the Second law efficiency is a very good indicator of the amount of irreversibility of the cycle.
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ASME 2012 Gas Turbine India Conference
December 1, 2012
Mumbai, Maharashtra, India
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4516-5
PROCEEDINGS PAPER
Second Law Efficiency of an Intercooled-Reheated-Regenerative-Brayton Cycle With Variable Temperature Heat Reservoirs Available to Purchase
Vishal Anand,
Vishal Anand
Infotech Enterprises Limited, Hyderabad, AP, India
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Krishna Nelanti,
Krishna Nelanti
Infotech Enterprises Limited, Hyderabad, AP, India
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Kamlesh G. Gujar
Kamlesh G. Gujar
Infotech Enterprises Limited, Hyderabad, AP, India
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Vishal Anand
Infotech Enterprises Limited, Hyderabad, AP, India
Krishna Nelanti
Infotech Enterprises Limited, Hyderabad, AP, India
Kamlesh G. Gujar
Infotech Enterprises Limited, Hyderabad, AP, India
Paper No:
GTINDIA2012-9568, pp. 423-432; 10 pages
Published Online:
July 25, 2013
Citation
Anand, V, Nelanti, K, & Gujar, KG. "Second Law Efficiency of an Intercooled-Reheated-Regenerative-Brayton Cycle With Variable Temperature Heat Reservoirs." Proceedings of the ASME 2012 Gas Turbine India Conference. ASME 2012 Gas Turbine India Conference. Mumbai, Maharashtra, India. December 1, 2012. pp. 423-432. ASME. https://doi.org/10.1115/GTINDIA2012-9568
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