Effective heat recuperator usable in metallurgical industry


Established technical university from Slovakia offers innovative heat recuperation system that enables effective heat recovery of waste heat from smelting furnaces. As a result higher industrial efficiency and lower energy consumption and CO2 emission is ensured. Unlike most of the commercially produced heat exchangers it is also usable in the heavy metallurgical industry. The university is looking for partners through licensing agreement acquisition or financial agreement. Recuperation or heat recovery is a process in which waste heat is transformed into heating of water or production of steam. Recovery of the waste heat produced by industrial processes is one of the best ways to lower energy consumption and eliminate CO2 emission in the industry. Most of the currently used recuperators are due to the aggressive environment and high adhesiveness of flue waste not suitable for metallurgical industry. The introduced system has properties that predetermine it for effective use even in the most challenging conditions. The construction is based on two functional parts: Heat exchanger from flue gas to air connected to natural gas burner and heat exchanger from flue gas to water connected to service water heater The design of heat exchangers enables undemanding maintenance and cleaning from flue sediments. Parts corroded by the direct exposure to flue gas can be easily replaced. Prototype of the system is more than 3 years in function for an industrial company in Slovak Republic. Energy savings and financial return is measurable and verifiable.


Efficiency and possibility of application in an aggressive environment (e.g. metallurgical furnaces) two methods of heat recovery directly connected to natural gas burner and service water heater components enabling water and air flow regulation easy cleaning of the heat exchangers from flue gas sediments mechanical parts affected by corrosion can be replaced; Prototype is available for demonstration. Technology has been field tested and evaluated.

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