Real Rankine Cycle with Superheat

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Presentation transcript:

Real Rankine Cycle with Superheat Given: A steam power cycle with known properties and operating parameters as shown below. Find: The net power developed (hp) The thermal efficiency The heat rate The back work ratio The mass flow rate of the cooling water

Real World Example

Real World Example Strategy: Build a property table, then do the thermodynamics. Knowing the isentropic efficiency allows for the calculation of the actual exit enthalpy

Now that the properties are all known, the thermodynamics is EESy!

Real World Example

Real World Example EES Result (Key Variables)

Rankine vs. Real Cycle Comparison Rankine Cycle Steam Power Cycle with Turbine and Pump Irreversibilities

Rankine vs. Real Cycle Comparison Rankine Cycle Steam Cycle