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What is dryness fraction?

Question asked by viratvicky in #Coffee Room on Aug 10, 2012
viratvicky
viratvicky · Aug 10, 2012
Rank D2 - MASTER
sir,
please explain me what is dryness fraction?
I didn't understood that in my class.... Posted in: #Coffee Room
zaveri
zaveri · Aug 10, 2012
Rank A3 - PRO
viratvicky
sir,
please explain me what is dryness fraction?
I didn't understood that in my class....

I think dryness fraction of coals is the amount of moisture content present in them.the more the dryness fraction , the lesser will be the power output.
arundtelang
arundtelang · Aug 10, 2012
Rank E1 - BEGINNER
viratvicky
sir,
please explain me what is dryness fraction?
I didn't understood that in my class....
Two phases of pure substance, liquid and vapour, can exist in equilibrium above a triple point, at a particular pressure and corresponding saturation temperature. For example at 100 degrees celsius, at atmospheric pressure, you can have water, water+vapour or vapour alone existing. The dryness fraction gives a fraction of vapour in vapour+liquid mixture. Ex. dryness fraction of 0.9 means 0.9 kg of vapour in 1 kg of total mixture.

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