Air flow means . How much air is required for complete combustion of 1 kg coal? Answer 56 Follow Request More 5 ANSWERS  Jiayuan Feng Answered Dec 17, 2017 Let's first assume this coal is 100% carbon. Complete combustion means: C + O2 => CO2 As you can see here we need a 1:1 ratio of carbon and oxygen molecules (since oxygen travels arounds in pairs). 1000g of carbon contains 250/3 moles of carbon. This means we also need 250/3 moles of oxygen molecules. Since oxygen has a concentration of 22% in the air, roughly a fifth. So we mulitply the amount of oxygen by 5 to get 1250/3 (416.67) moles of air. 1 moles of any gas occupies 24dm3 (litres) of volume in standard conditions (which I'm using for . So we multiply 1250/3 by 24 to get 10000 litres of air. Then plus a 10% extra to make extra sure oxygen will be in excess and ensures complete combustion. So all in all 11000 litres of air or 11 cubic metres of air. Though of course since we're reacting in air, carbon isnt going to be the only thing which will be reacting. Nitrogen gas (which makes up 78% of the air) can also react with the oxygen so in reality we'd need more air.
1.High temperature me boiler n chalaye. 2. Aisa hone pr Turant boiler line me le 3. High quality bed use kre jiska fusion temperature high ho.... ऐसा करने से clinker बनने के संभावना कम हो जयेगी,,,
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What is the meaning of air flow and how to calculate air flow in boiler please expalin in detail
Air flow means . How much air is required for complete combustion of 1 kg coal?
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5 ANSWERS

Jiayuan Feng
Answered Dec 17, 2017
Let's first assume this coal is 100% carbon. Complete combustion means:
C + O2 => CO2
As you can see here we need a 1:1 ratio of carbon and oxygen molecules (since oxygen travels arounds in pairs).
1000g of carbon contains 250/3 moles of carbon. This means we also need 250/3 moles of oxygen molecules.
Since oxygen has a concentration of 22% in the air, roughly a fifth. So we mulitply the amount of oxygen by 5 to get 1250/3 (416.67) moles of air.
1 moles of any gas occupies 24dm3 (litres) of volume in standard conditions (which I'm using for . So we multiply 1250/3 by 24 to get 10000 litres of air. Then plus a 10% extra to make extra sure oxygen will be in excess and ensures complete combustion. So all in all 11000 litres of air or 11 cubic metres of air.
Though of course since we're reacting in air, carbon isnt going to be the only thing which will be reacting. Nitrogen gas (which makes up 78% of the air) can also react with the oxygen so in reality we'd need more air.
Achanak I'd fan trip kare tab furnace ko clinker SE kaise bachana h
1.High temperature me boiler n chalaye.
2. Aisa hone pr Turant boiler line me le
3. High quality bed use kre jiska fusion temperature high ho....
ऐसा करने से clinker बनने के संभावना कम हो जयेगी,,,
A some..sirji...our koy topic pe vidio banaye sir.ji...very good
Ok friend..,😊😊
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