Flameless oxidation at the GT26 gas turbine: numerical study via full chemistry

• Autorzy: Ochrymiuk T. , Badur J.
• Języki publikacji: EN

Abstrakty

EN

Sequential combustion was first applied to gas turbines more than 40 years ago, and almost half of these early machines are still operating. This form of oxidation leads to the flame-less combustion at a second chamber. In GT26, the second stage combustor has 24 SEV burners which are similar in action to the well known ABB EV burner. In this paper, a 3D numerical simulation of the first EV combustor and the second SEV-combustor are performed for normal operating conditions (exhaust mass flow 542 kg/s, exhaust temperature 610 C). Physical modelling of the flame-less oxidation is based on an original implementation of the Gri-Mech mechanism (325 chemical reactions) into the Fluent 5.4. Precise estimation of NOx emission and other pollutants has been done.

Słowa kluczowe

EN

combustion; full kinetics of chemical reaction; CFD; computational fluid dynamics CFD; flameless oxidation; flameless combustion

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2001
• Tom: Vol. 5, No 2
• Strony: 239--246
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Ochrymiuk T.

• Institute of Fluid Flow Machinery, Polish Academy of Sciences, Department of Reacting Flows, Fiszera 14, 80-952 Gdansk, Poland

autor

Badur J.

• Institute of Fluid Flow Machinery, Polish Academy of Sciences, Department of Reacting Flows, Fiszera 14, 80-952 Gdansk, Poland

Bibliografia

• [1] 2000 The GT24/GT26 gas turbines ABB Power Generation
• [2] Wunning J A and Wunning J G 1997 Proc. Energy Combustion Sci. 23 81
• [3] Dobrowolski P, Ochrymiuk T, Topolski J and Badur J 2000 National Conference – Energetyka’2000, Wrocław (in Polish)
• [4] Ochrymiuk T and Badur J 2000 Int. Rep. IFFM PAS-ci No 196 pp. 1-15 (in Polish)
• [5] Smith G P, Golden D M, Frenklach M, Moriarty N W, Eiteneer B, Goldenberg M, Bowman C T, Hanson R, Song S, Gardiner W C jr, Lissianski V and Qin Z http://www.me.berkeley.edu/gri-mech/
• [6] Magnussen B F and Hjertager B H 1976 16th Int. Symp. on Combustion, The Combustion Institute, Pittsburgh
• [7] Kee R J and Miller J A UC-405 SAND87-8215B Reports of Sandia National Laboratories
• [8] Kee R J, Dixon-Lewis G, Warnatz J, Coltrin M E and Miller J A UC-401 SAND86-8246 Reports of Sandia National Laboratories
• [9] Kee R J, Rupley F M and Meeks E UC-405 SAND96-8216 Reports of Sandia National Laboratories