Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by

Which of the following is a directly fired intermittant furnace ?

An example of indirectly heated furnace is the

Turn down ratio of a burner

Heat balance of furnace provides means of determining the

Maximum thermal efficiency of boiler may be about __________ percent.

Which of the following is a periodic furnace?

Specific heating capacity of a furnace is expressed as

Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace ?

Rotary kilns are used in the