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Chemical Engineering - Furnace Technology

Exercise : Furnace Technology - Section 2
21.
The method of Lobo and Evans is concerned with the calculation of the
heat absorption in radiant section of a furnace.
heat transfer by forced convection in a reboiler.
heat transfer in vacuum condensers.
mass transfer co-efficient.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Reverberatory furnace is used for
roasting/reduction of ores
annealing steel coil
heating air
steel melting
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.
10-15
25-30
45-50
65-70
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by
conduction
convection
radiation
can not be predicted.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Which of the following is a directly fired intermittant furnace ?
Walking beam reheating furnace
Reverberatory furnace
Tower furnace
Tunnel kiln
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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