Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

Fuels and Combustion
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

Oxygen content

Caking power

Calorific value

Hydrogen content

Oxygen content

Caking power

Calorific value

Hydrogen content

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Fuels and Combustion
The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

1.8 y

0.95 y

1.05 y

Y

1.8 y

0.95 y

1.05 y

Y

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Fuels and Combustion
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant?

None of these

Ammonium sulphate

Ammonium phosphate

Ammonium nitrate

None of these

Ammonium sulphate

Ammonium phosphate

Ammonium nitrate

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Fuels and Combustion
Compound coke ovens are those which can be heated by

Rich gas (e.g., coke oven gas)

Both steam and electrical power

Both B and C

Lean gas (e.g., B.F. gas)

Rich gas (e.g., coke oven gas)

Both steam and electrical power

Both B and C

Lean gas (e.g., B.F. gas)

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Fuels and Combustion
Which of the following accounts for maximum energy loss in a boiler?

Incomplete combustion

Unburnt carbon in flue gases

Ash content in the fuel

Flue gases

Incomplete combustion

Unburnt carbon in flue gases

Ash content in the fuel

Flue gases

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Fuels and Combustion
Sometimes water is sprayed during coal charging in the coke oven, which helps in

Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂)

Prevention of clinker formation in the oven

Controlling the dust nuisance while charging the coal

All of these

Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂)

Prevention of clinker formation in the oven

Controlling the dust nuisance while charging the coal

All of these

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Fuels and Combustion

Fuels and Combustion Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

Fuels and Combustion The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

Fuels and Combustion Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant?

Fuels and Combustion Compound coke ovens are those which can be heated by

Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler?

Fuels and Combustion Sometimes water is sprayed during coal charging in the coke oven, which helps in

Fuels and Combustion
Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

Fuels and Combustion
The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be

Fuels and Combustion
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant?

Fuels and Combustion
Compound coke ovens are those which can be heated by

Fuels and Combustion
Which of the following accounts for maximum energy loss in a boiler?

Fuels and Combustion
Sometimes water is sprayed during coal charging in the coke oven, which helps in