Question

A sample of steam weighing 4.7kg if the total heat of the sample is 11000kJ and steam pressure is 5 bar. Then dryness fraction is (the properties of steam hf=640.2kJ/kg and hfg=2108.5kJ/kg) A)0.901 B)0.806 C)0.851 D)0.983​

Answer 1

Answer:

A).0.91

Explanation:

• Specific Volume (ν) of Wet Steam

• X = Dryness (% / 100) νf = Specific Volume of Saturated Water. νg = Specific Volume of Saturated Steam.

Answer 2

The dryness fraction is A) 0.901.

Explanation:

• Specific Volume (ν) of Wet Steam

• X = Dryness (% / 100) νf = Specific Volume of Saturated Water. νg = Specific Volume of Saturated Steam.