Typical operational data for a cokeless cupola furnace

Due to the absence of cokes (and CO), no latent heat is lost from the cokeless furnace system. Full heat recuperation from the flue-gas occurs in the shaft. In duplex configurations (for example in conjunction with an induction furnace), efficiencies in the range of 40 to 60 % may be obtained. Thermal efficiencies for coke fired cupolas vary between 25 % (cold blast) and 45 % (hot blast, long campaign). 

Emission data for cokeless and hot blast cupola furnaces are compared in Table 4.8. These apply for the following configurations  

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Table 4.7 Typical operational data for a cokeless cupola furnace [202, TWG, 2002]...

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