Mathematical model of the metallurgical waste heat recovery system generating useful heat and refrigeration based on the experimentally determined characteristics

A mathematical model of the metallurgical low and medium temperature waste heat recovery system, for the most part based on experimental relationships, is presented. The utilization system consisting of a waste heat boiler, an absorption refrigerator and a cooling towers system has been analyzed, considered to cover the integrated heat and refrigeration demands. The selected results of the numerical calculations, simulating the performance of the system in the case of the changing ambient conditions as well as the exhaust gas temperature and its flow rate, has been presented.