A Rankine cycle with reheat produces 1 MW of net power. The boiler operates at 15...

A Rankine cycle with reheat produces 1 MW of net power. The boiler operates at 15 MPa and has an outlet temperature of 800 K. The condenser operates at atmospheric pressure (1 atm). The operating point of this cycle is such that the water exiting the low pressure turbine has no liquid present to prevent damageto the turbine (hint: what does this say about quality at this point?). Assume the pump and second turbine stage are both isentropic, but the first turbine stage has an isentropic efficiency of 90%. Assume the steam is reheated at a pressure of 1 MPa.

Find:

(A)The mass flow rate of steam through the turbines

(B)The required heat input

(C)The required flow rate of fuel given a heating value of 50 MJ/kg

(D)Plot the state points on a T-s diagram with lines of constant pressure at the boiler,reheat, and condenser pressures.

Solutions

Expert Solution

samet mamat answered 1 year ago

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