Regenerators compared to the recuperators for the same duty
The method of Lobo and Evans is concerned with the calculation of the
Regenerators are normally provided in the
Thermal efficiency of furnaces can be improved by
The main function of a muffle in the muffle furnace is to
Which of the following is a heat treatment furnace ?
Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
In low or standard frequency induction furnace, heat is produced by the
Which furnace employs natural draft ?
The heating capacity of muffle furnace depends on the
Forced recirculation of furnace gases is practised
Regenerators are used for waste heat recovery in
Reverberatory furnace is used for
Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
Shaft furnaces are used for
Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.
Very high pressure boilers are usually __________ boilers.
__________ atmosphere is maintained inside an iron blast furnace.
Scaling of furnace stock is reduced by __________ in flue gas.
Which of the following is a batch furnace ?
Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the
Which of the following furnaces will have maximum thermal efficiency ?
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.
Furnace pressure is normally controlled by regulating the
Hearth furnaces are not used for
Heat transfer rate to the charge/stock in a furnace does not depend upon the
__________ furnace is not an electric furnace.
In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the
Air filtration in a furnace
Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing ?
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