What is dryness fraction?

viratvicky

viratvicky

@viratvicky-VVVtIh • Oct 21, 2024
sir,
please explain me what is dryness fraction?
I didn't understood that in my class....
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  • zaveri

    zaveri

    @zaveri-5TD6Sk • Aug 10, 2012

    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.
    0
  • arundtelang

    arundtelang

    @arundtelang-XVIxsY • Aug 10, 2012

    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.
    0