Waste heat recovery from flue gases with substantial dust load

Heat recovery is accomplished in a newly developed heat exchanger THERMOWIR. THERMOWIR consists of a large number of channels. Vortices are generated within the THERMOWIR and the dust is thrown to the walls of the THERMOWIR, thus keeping the center of the channels dust free, where the heat transfer tubes are located. A demonstration unit with 1 MWe capacity is being installed at present in a cement factory.