Furnace Technology Thermal efficiency of furnaces can be improved by Minimising heat losses from furnace walls All of these Maintaining proper draught Waste heat recovery from flue gas Minimising heat losses from furnace walls All of these Maintaining proper draught Waste heat recovery from flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 65-70 44119 45-50 25-30 65-70 44119 45-50 25-30 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The method of Lobo and Evans is concerned with the calculation of the Heat transfer by forced convection in a reboiler Heat transfer in vacuum condensers Mass transfer co-efficient 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 Heat absorption in radiant section of a furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an Blast furnace Annealing furnace Salt bath furnace Steam boiler Blast furnace Annealing furnace Salt bath furnace Steam boiler ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Are less costly Occupy more space Have higher pressure differential between flue gas & air side Are lighter Are less costly Occupy more space Have higher pressure differential between flue gas & air side Are lighter ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Example of an indirectly heated furnace is Hood annealing furnace Muffle furnace Both A and B Neither A nor B Hood annealing furnace Muffle furnace Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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