Furnace Technology
Which is not accomplished in an underfired furnace?

Reduction in the temperature of furnace gases
Portection of the periphery of the charge from excessive radiation
Elimination of cold spot at the bottom of the charge
Increase in heating capacity/m² of floor space

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Furnace Technology
Recuperator is

An intermittant waste heat recovery equipment
Not used for fuel gas preheating
Heavier than regenerator meant for the same duty
A continuous waste heat recovery equipment

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