B105 NUMERICAL SIMULATION OF A COMBUSTOR FOR BURNING PYROLYSIS GAS(Combustion-2)

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概要

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• The chemically recuperated gas turbine (CRGT) cycle has the following advantages: low heat rejection, high combustion efficiency, low thermal radiation to the flame tube and low contamination in the exhaust .In order to let the combustor burning the chemically recuperated produced pyrolysis gas steadily with high efficiency, we must improve the combustor designing. The numerical simulation method based on CFD is an important method to reduce the combustor research expense, shorten the developing period with the advancing of the computer and the development of numerical simulation, which has been recognized by more and more people and can provide the qualitative guidance for the combustor design. In this paper, the combustion flow fields of a combustor with pyrolysis gas as oil was simulated with FLUENT software. During the numerical simulation, the k-ε turbulence model, a single chemistry reaction system, infinite-rate reaction, up-wind discretization scheme and the SIMPLE algorithm were applied. The effect of the load on the combustion efficiency, excess air ratio, the length of flame, the average temperature of outlet and etc were given. The diameters of primary hole and dilution hole was changed and the corresponding combustion fields were simulated, The effect of the diameter on excess air ratio, the length of flame and the unevenness of outlet temperature field were given. By the numerical simulation in this paper, the characteristic of pyrolysis gas's combustion field was researched. The work of this paper is valuable in optimizing the combustor.

• 2009-11-16

著者

• Zheng Hongtao

  School Of Power And Energy Engineering Harbin Engineering University

• Zhou Chunliang

  School Of Power And Energy Engineering Harbin Engineering University:school Of Power Science And Eng

• Zhou Chunliang

  School Of Power Science And Engineering Harbin Institute Of Technology:school Of Power And Energy En

• LI Jinying

  School of Power and Energy Engineering, Harbin Engineering University

• ZHANG Baoling

  School of Power and Energy Engineering, Harbin Engineering University

• Li Jinying

  School Of Power And Energy Engineering Harbin Engineering University

• Zhang Baoling

  School Of Power And Energy Engineering Harbin Engineering University

関連論文

• B206 NUMERICAL SIMULATION OF LI/SF_6 COMBUSTION FLOW FIELD(Combustion-5)
• B105 NUMERICAL SIMULATION OF A COMBUSTOR FOR BURNING PYROLYSIS GAS(Combustion-2)
• B106 NUMERICAL SIMULATION AND OPTIMIZATION FOR COMBUSTION FLOW FIELD OF BURNER(Combustion-2)

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