Boiler system controlling fuel to a furnace based on temperature of a structure in a superheater section

A monitoring system for a boiler system comprising a furnace adapted to receive a fuel to be burned to generate hot working gases, a fuel supply structure associated with said furnace for supplying fuel to said furnace, a superheater section associated with the furnace and positioned to receive energy in the form of heat from the hot working gases, the superheater section comprising at least one platen including at least one tube structure, the one tube structure having an end portion, the monitoring system comprising:

• a sensor for measuring the temperature of the tube structure end portion and generating a signal indicative of the temperature of the tube structure end portion;
• and
• a controller coupled to said sensor for receiving and monitoring the signal from said sensor.

A process for monitoring a boiler system comprising a furnace for burning a fuel to generate hot working gases, a fuel supply structure for supplying fuel to the furnace, a superheater section comprising at least one platen including at least one tube structure, the one tube structure having an end portion, and a sensor for measuring the temperature of the tube structure end portion and generating a signal indicative of the temperature of the tube structure end portion, the process comprising;

• monitoring the signal from the sensor, and
• controlling an amount of fuel provided to the furnace based on the signal.