Page 108 - Handbook of Energy Engineering Calculations

percent. What are the full-load output and steam rate of the turbine?

Calculated Procedure:

1. Determine the available energy in the steam
2
Enter Fig. 30 at the bottom at 1000-lb/in (abs) (6895.0-kPa) inlet pressure,
and project vertically upward to the 800°F (426.7°C) 1-in (3.4-kPa) exhaust-

pressure curve. At the left, read the available energy as 545 Btu/lb (1267.7
kJ/kg) of steam.

FIGURE 30 Available energy for typical condensing turbines.

2. Determine the heat rate of the turbine
Enter Fig. 31 at an initial steam temperature of 800°F (426.7°C), and project