Patent ID: 8894408

Claim:
A combustion apparatus, comprising: a fuel supply line to the combustion apparatus for providing an overall fuel supply to the combustion apparatus; at least one burner including a plurality of fuel supply lines to the at least one burner, the supply of fuel in the plurality of fuel supply lines to the at least one burner corresponding to the overall fuel supply in the fuel supply line to the apparatus; a combustion volume associated with the at least one burner; a temperature sensor located in the apparatus such as to be able to convey temperature information relating to a part of the apparatus which is to be protected against overheating; a pressure sensor such as to be able to convey pressure information representing pressure within the combustion volume; and a control arrangement arranged to vary the fuel supplies to one or more of the at least one burner based on the temperature information and on the pressure information and on a further information, the further information being a measure of a progress over time for a signal for a predefined time span defined by a time information, such as to maintain the temperature of said part to be protected below a predetermined maximum temperature limit, such as to keep the pressure variations within the combustion volume below a predetermined maximum pressure variation limit, while keeping the overall fuel supply in the fuel supply line to the apparatus substantially constant, wherein the control arrangement is further configured such as the signal to be processed represents a load information, the load information being indicative for a load of the combustion apparatus, and wherein the measure of the progress over time for the signal for the predefined time span defined by the time information is a time average of the load for the time span.