Problem 8.1 - A 10 MPa Steam Power Plant with an Open Feedwater Heater

Consider the steam power plant with an open feedwater heater operating under the conditions shown in the following diagram:

Carefully draw the complete cycle above on the pressure-enthalpy [P-h] diagram provided below, indicating clearly all 9 stations on the diagram.

Using the conditions shown on the diagram above and values obtained from the Steam Tables:

Note: Justify all values used and derive all equations used starting from the basic energy equation for a flow system, and basic definition of thermal efficiency of a heat engine.


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Engineering Thermodynamics by Israel Urieli is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License