Question

In: Mechanical Engineering

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine...

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine inlet temperature of 572 oF. The steam is isentropically expanded through the turbine to 5 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the percent moisture at the turbine outlet under these operating conditions. State your answer in whole numbers.

Solutions

Expert Solution

1. Draw point 1 at T1 = 572oF and P1 = 900 psia. It shows the inlet condition of turbine.

2. Draw vertical line intersecting pressure line P2 = 5 psia. This point shows outlet condition of turbine. corrensponding value of dryness fraction x2 = 0.77, It means that moisture is 77%.


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