Fuels and Combustion
Bunsen burner is an example of a/an __________ burner.

Rotary cup
Outside mixing/diffusion flame/nozzle mix type
Submerged combustion
Inside mixing/premix type

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Fuels and Combustion
The main drawback of supplying more excess air in the combustion of fuel is the

High exit flue gas temperature from the furnace
Enhanced sensible heat loss in the flue gas
Excessive power requirement of air blower
Intermittant and uncontrolled combustion of the fuel

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Fuels and Combustion
Combustion of pulverised fuel

In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel
Requires larger combustion chamber than rich gaseous fuel
Suppresses the discharge of fine dust and grit into atmosphere
All of these

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