IGTC-85 On Thermal Efficiencies of Gas Turbine Systems, Combined with Hot Stoves for a Blast Furnace(Session C-4 CYCLE PERFORMANCE II)

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概要

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• At steel works, hot air of 4.5kg/cm^2G and of 1000〜1300℃ is supplied to a blast furnace. A set of 3 or 4 hot stoves, is typically used to heat up the air which is led to the blast furnace. For these hot stoves-blast furnace system, gas turbines combined with hot stoves are useful to save thermal energy of fuels, which is supplied to hot stoves system. Three type of gas turbine-hot stoves systems are studied ; A_1 (Fig.2), A_2 (Fig.3) and B (Fig.4). When thermal efficiency is defined as following, η_3=Output (kw×860) from the system/(Heat energy supplied to new system-Fundamental heat energy supplied to typical hot stove) thermodynamical efficiency η_3 is respectively 46.2% for A_1, 85.8% for A_2 and 40〜102% for B.

• 公益社団法人日本ガスタービン学会の論文

著者

• Nishiwaki N.

  Nishiwaki Laboratory

• Oshima R.

  Hitachi Works, Hitachi Ltd.

• Ueno T.

  Hitachi Works, Hitachi Ltd.

• Konishi J.

  Nippon Kokan K.K.

関連論文

• IGTC-85 On Thermal Efficiencies of Gas Turbine Systems, Combined with Hot Stoves for a Blast Furnace(Session C-4 CYCLE PERFORMANCE II)

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