Method for optimised operation of an air preheater and air preheater

摘要

The method involves detecting temperature of air in an air inlet, and detecting temperature of a flue gas (RG) in a flue gas inlet. A mass flow rate of the flue gas in the flue gas inlet and/or the air in the air inlet is detected. A minimum temperature of hot sheets is determined depending on the temperature and the mass flow rate of the air and/or the flue gas. The temperature and the mass flow rate of the air and/or the flue gas are controlled, so that the minimum temperature of the hot sheets does not lie below a predetermined minimum temperature. Independent claims are also included for the following: (1) a control device for controlling an air preheater (2) a computer program for executing a method of operating an air preheater (3) a storage medium for storing a computer program (4) an air preheater comprising a rotor and a flue gas inlet.