Steam Power Plant Design
Steam Conditions. For selection of steam pressures and temperatures for inlet
conditions to the turbine, see Section 5, Steam Turbine Design. Going slightly beyond a
range bracket (as above 400 psig (2758 kPa gage) and 750 degrees F (399 degrees C)) will
result in price increases and a less economical design. For boiler outlet conditions,
see Section 4, Power Plant Steam Generation. The export steam conditions depend on the
distribution system and the consuming equipment.
Heat Balances. Typical extraction condensing, back pressure and automatic
extraction cycles are shown in Figures 6, 7, and 8. For collateral reading on steam
cycles and heat balances, see Steam Turbines and Their Cycles, Salisbury 1974, Modern
Turbines, L. E. Newman 1944, Mechanical Engineers Handbook, Marks 1978, and Power Plant
Engineering, Morse 1943. A typical heat balance for an extraction condensing cycle is
shown on Figure 9.
Power plant design should consider and evaluate the
Plant Design Factors.
factors listed in Table 3.