- emPOWERing Knowledge

--- emPOWERing Knowledge

Saturday, 20 July 2013

Lets Generate Steam...!!!!!

In a Coal based Thermal Power Plant. If something plays a vital role… Then its >>> STEAM…!!!
ü  STEAM GENERATION
Basic Definition - “Process of conversion of water into steam”
Bookish Definition – “A stage when water begins to boil and there is no rise in temperature at this stage steam is formed, which continues to be so at the same temperature unless and until pressure changes”

ü  SOME Basic TERMINOLOGIES –

Sensible Heat – Heat required for bringing water from 0 degree to its boiling point. (No phase change)
Latent Heat – Heat required for changing the state of water from liquid to vapor state. (Phase Change)
Saturation Temperature – The temperature at which both water and steam remains at the same temperature though heat is continued to be added till the water is completely converted into steam.
Critical Point – Temperature of 374 degree and Pressure of 224.6 Kg/cm2 absolute pressure.
Super Heat – When the steam is heated above Saturation Temperature

Heat Transfer – Heat Transfer in boiler is carried out in three ways, Conduction-Convection-Radiation. (Guys it will be explained in details later…)

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