MAXIMUM EFFICIENCY STEAM TEMPERATURE CONTROLLER

摘要

In a system for increasing the main stream temperature in a boiler/turbine installation to the maximum level consistent with safe operation of the installation, the difference between a signal representative of the main steam temperature and a system parameter is determined (68) and used (70) as an index to adjust the main steam temperature set point upward or downward. The system parameter selected for comparison with the signal representative of the main steam temperature may be the allowable variance between the main steam temperature and the main steam temperature set point or may be a "safety margin" temperature selected so as to be below the maximum allowable temperature for the installation.