THE USE OF A STIRLING ENGINE AND HIS CONTROL FOR THE PRODUCTION OF ELECTRICITY FROM WASTE HEAT OF METALURGICAL PLANTS

This work deals with the utilization of waste heat of steel plants to generate electricity, using Stirling engine. It also deals with the design and connection of Stirling engine in the stack of metallurgical plant to utilize the waste heat energy to generate electricity. The focus of the paper is on optimization of power generation to achieve the highest efficiency of the engine. The efficiency improvement is achieved by measuring the temperatures at the cooler and heater and then controlling the flow of fluids that transfer energy to the motor. The Stirling engine is connected via a clutch and gearbox to an alternator which converts rotational energy into electrical energy. The control is implemented by a microcontroller and control elements such as taps and brake. The electricity generated in this way could be used to power the plant's measuring elements or to light the plant. The aim of this work is to design a power generator that uses the waste heat of metallurgical plants to save electricity.