An Experimental Study on Combustion of an Ultralean-Fuel and Air Mixture by Heat Recirculation

• KAWAMURA Takeshi

  Department of Mechanical Engineering, Gifu University

• ASATO Katsuo

  Department of Mechanical Engineering, Gifu University

• ITO Shoichi

  Daido Institute of Technology

抄録

An experimental study was carried out on the excess enthalpy burning of an ultralean-methane/air mixture using a heat- recirculating burner. The flame-stability limit, the gas temperatures and the chemical composition of the burnt gas were examined, while the flame behavior was carefully observed. The conclusions obtained were as follows : (1) Almost completely burnt gases are produced with a negligibly small amount of nitrogen oxide. (2) If the combustion of the mixture is incomplete in the combustion chamber and the residual of the mixture burns secondarily in the hot part of the heat exchanger downstream of the combustion chamber, the temperatures of both the preheated mixture and the flame drop. (3) The flame blows off prior to the approach to the proper limit of flammability for the preheated mixture, and flame stabilization in the combustion chamber is important since the mixture at the blowoff limit is still flammable.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 32 (2), 252-259, 1989-05-15

  一般社団法人日本機械学会

キーワード

• Combustion
• Excess Enthalpy Flame
• Ultralean-Fuel Gas
• Fuel Saving
• Heat-Recirculating Burner

詳細情報

• CRID: 1573950401921043712
• NII論文ID: 110002494260
• NII書誌ID: AA10680596
• ISSN: 09148817
• 本文言語コード: en
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