The Cheng cycle is a thermodynamic cycle which uses a combination of two working fluids, one gas and one steam. It can therefore be considered a combination of the Brayton cycle and the Rankine cycle. It was named for Dr. Dah Yu Cheng.[1]
The company founded by Dr. Cheng has developed systems in partnership with both GM and GE turbine manufacturers to take advantage of the Cheng cycle by modification of existing turbine designs before construction. The Cheng cycle involves the heated exhaust gas from the turbine being used to make steam in a heat recovery steam generator (HRSG).[2] The steam so produced is injected into the gas turbine's combustion chamber to increase power output.[3] The process can be thought of as a parallel combination of the gas turbine Brayton cycle and a steam turbine Rankine cycle.[4][5] The cycle was invented by Prof. Dah Yu Cheng of the University of Santa Clara who patented it in 1976.[6][1]
A fully Cheng Cycle design Gas/Steam two fluid flow turbine can achieve a theoretical thermal efficiency of 60% matching or even exceeding many traditional Combined Cycle Gas Turbines that keep the steam Rankine Cycle and gas Brayton Cycle as separate loops.[1]
^ abcCheng, D.Y. and A.L.C. Nelson (2002) Chronological development of the Cheng cycle steam injected gas turbine during the past 25 years. in: Anon (Ed.), Proceedings of ASME Turbo Expo 2002, Amsterdam, ASME Paper No. GT-2002-30119 (2002), pp. 421–428
^Penning, F. M. and de Lange, F. M. (1995) Steam Injection: analysis of a typical application Applied Thermal Engineering Vol. 16, No. 2, pp. 115 125
^De Paepe, M. and E. Dick (2001) Technological and economical analysis of water recovery in steam injected gas turbines, Applied Thermal Engineering, Volume 21, Issue 2, January 2001, Pages 135–156
^Stadler, F. and U. Schneider, (1997) ELIN Cheng Cycle, Elin Energieversorgung GmbH, 1997
^Motz, D.A. (1987) The Cheng Cycle: principles and applications, Ass. Energy Engng, 8th World Energy Engng Conf., Atlanta, USA
^Cen, Ke-fa Yong Chi, Jianhua Yan (2007) Challenges of Power Engineering and Environment: Proceedings of the International Conference on Power Engineering, Springer (Accessed August 2012)
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cheng, cycle, thermodynamic, cycle, which, uses, combination, working, fluids, steam, therefore, considered, combination, brayton, cycle, rankine, cycle, named, cheng, company, founded, cheng, developed, systems, partnership, with, both, turbine, manufacturers. The Cheng cycle is a thermodynamic cycle which uses a combination of two working fluids one gas and one steam It can therefore be considered a combination of the Brayton cycle and the Rankine cycle It was named for Dr Dah Yu Cheng 1 The company founded by Dr Cheng has developed systems in partnership with both GM and GE turbine manufacturers to take advantage of the Cheng cycle by modification of existing turbine designs before construction The Cheng cycle involves the heated exhaust gas from the turbine being used to make steam in a heat recovery steam generator HRSG 2 The steam so produced is injected into the gas turbine s combustion chamber to increase power output 3 The process can be thought of as a parallel combination of the gas turbine Brayton cycle and a steam turbine Rankine cycle 4 5 The cycle was invented by Prof Dah Yu Cheng of the University of Santa Clara who patented it in 1976 6 1 A fully Cheng Cycle design Gas Steam two fluid flow turbine can achieve a theoretical thermal efficiency of 60 matching or even exceeding many traditional Combined Cycle Gas Turbines that keep the steam Rankine Cycle and gas Brayton Cycle as separate loops 1 See also editCombined cycle Brayton cycle Rankine cycle CogenerationReferences edit a b c Cheng D Y and A L C Nelson 2002 Chronological development of the Cheng cycle steam injected gas turbine during the past 25 years in Anon Ed Proceedings of ASME Turbo Expo 2002 Amsterdam ASME Paper No GT 2002 30119 2002 pp 421 428 Penning F M and de Lange F M 1995 Steam Injection analysis of a typical application Applied Thermal Engineering Vol 16 No 2 pp 115 125 De Paepe M and E Dick 2001 Technological and economical analysis of water recovery in steam injected gas turbines Applied Thermal Engineering Volume 21 Issue 2 January 2001 Pages 135 156 Stadler F and U Schneider 1997 ELIN Cheng Cycle Elin Energieversorgung GmbH 1997 Motz D A 1987 The Cheng Cycle principles and applications Ass Energy Engng 8th World Energy Engng Conf Atlanta USA Cen Ke fa Yong Chi Jianhua Yan 2007 Challenges of Power Engineering and Environment Proceedings of the International Conference on Power Engineering Springer Accessed August 2012 nbsp This thermodynamics related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Cheng cycle amp oldid 1170489341, wikipedia, wiki, book, books, library,
