Related Questions

Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the
A Quantity & temperature of waste gas
B Dust concentration & nature of dust in waste gas
C Corrosive nature of the waste gas
D All of the above
Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
A 350
B 750
C 1050
D 1250
Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of
A Fireclay
B Silicon carbide
C Corrundum
D Siliceous fireclay
Coke oven regenerators are made of __________ bricks.
A Fire clay
B Silica
C Low thermal conductivity
D High electrical conductivity
Regenerators compared to the recuperators for the same duty
A Occupy more space
B Are less costly
C Are of smaller size
D All of the above
Regenerators as compared to recuperators for the same duty
A Store smaller quantity of waste heat
B Are lighter & compact
C Involve higher initial cost
D All of the above
Regenerators are installed in
A Coke ovens
B Open hearth furnace
C Both A & B
D Neither A nor B
Regenerators are normally provided in the
A Glass melting furnace
B Open hearth furnace
C By product coke ovens
D All of the above
Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace?
A Economiser
B Regenerator
C Ceramic recuperator
D Waste heat boiler
In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time?
A Recuperator
B Regenerator
C Waste heat boiler
D None of these

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