Fuels and Combustion
Advantages of fluidised bed combustion are

All of these
High heat transfer rate
Lower furnace operating temperature
Reduced NOx formation in flue gas

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Fuels and Combustion
A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that

No excess air has been used for combustion
21% excess air has been used for combustion
21% excess oxygen has been used for combustion
Complete combustion of fuel has taken place

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