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 ?