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Which of the following calorimeter is normally used when the value of the dryness fraction is very low?

Which of the following calorimeter is normally used when the value of the dryness fraction is very low? Correct Answer Separating and throttling calorimeter

Explanation:

Separating and Throttling Calorimeter

  • If the steam whose dryness fraction is to be determined is very wet then throttling to atmospheric pressure may not be sufficient to ensure superheated steam at exit.
  • In this case it is necessary to dry the steam partially, before throttling. This is done by passing the steam sample from the main through a separating calorimeter as shown in Figure. 
  • The steam is made to change direction suddenly, and the water, being denser than the dry steam is separated out.
  • The quantity of water which is separated out (mw) is measured at the separator, the steam remaining,

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