The animation shows the schematic structure of waste heat recovery from the flue gas from the galvanizing kettle.
The temperature of the exhaust from the combustion chamber is approx. 550 °C. Using an air-water heat exchanger it is possible to make use of the heat energy for other purposes, e.g. to heat the pre-treatment bath or offices and staff rooms. The temperature of the exhaust in the chimney is now only approx. 80 °C.