Chemical Engineering :: Furnace Technology
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Which is not accomplished in an underfired furnace ?
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In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of
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Rate of heat release in a furnace, which is the measure of heat intensity is defined as
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Oxygen enrichment of combustion air does not result in increase of the
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An example of recuperative furnace is the
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Pick out the wrong statement.
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Which one is not an induced draught furnace?
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Overfire burning in a furnace is a phenomenon characterised by
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If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
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Neutral atmosphere is maintained in a/an __________ furnace.
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A.
Addition of methane to the furnace atmosphere reduces decarburising by hydrogen.
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B.
Nitrogen in presence of steam decar-burises high carbon steel, whereas hydrocarbon gases carburise the surface of steel at annealing temperatures.
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C.
Active nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation with increase in surface hardness.
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D.
none of these.
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