Fuels and Combustion A sample of natural gas containing 80% methane (CH₄) and rest nitrogen (N₂) is burnt with 20% excess air. With 80% of the combustibles producing CO₂ and the reminder going to CO, the Orsat analysis in volume percent is CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volumetric ratio of N₂ to O₂ in dry atmospheric air is 4.76 0.79 0.21 3.76 4.76 0.79 0.21 3.76 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Decreases with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Water gas constitutes mainly of CO & H₂ CH₄ & H₂ CO₂ & H₂ CO & N₂ CO & H₂ CH₄ & H₂ CO₂ & H₂ CO & N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent. 7.5 2.5 10.5 14.5 7.5 2.5 10.5 14.5 ANSWER DOWNLOAD EXAMIANS APP
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