Modeling of the media-supply of gas burners of an industrial furnace

Gas-fired industrial furnaces are used to heat products to a predefined temperature level. As the temperature of the load as well as the composition of the flue gas are crucial for many applications in industry, the controllers of burners have to ensure a given heat input and air-fuel ratio. As a basis for such controllers, an accurate mathematical model of the media supply of an industrial furnace, including valves, pressure reducing valves, and long hot-air pipelines, will be derived from first principles and verified by means of measured data of a real plant.