Question #136165

A vessel with a volume of 0.03 m3 contains saturated vapor at a pressure of 17 bar. Determine the mass of the vapor and having found the mass value, determine the enthalpy value

? and also explain why X (quality) = 1

? and also explain why X (quality) = 1

Expert's answer

As per the given data:

Volume of saturated steam (V)=0.03 m^{3}.

At pressure (P)=17 bar=1.7 MPa

From steam table,

The specific volume (Vg)=0.11667 m^{3}/kg.

The specific Entalpy (h_{g})=2794.5kJ/kg

Therefore,

Mass of steam(M)=

Therefore , Enthalpy (H)=m h_{g}=0.257x2794.5 kJ=718.75 KJ

Since steam is saturated, it doesn't contain any liquid phase, therefore it's dryness is 100% and it's quality (x)=1.

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