Development of furnace design to dispose municipal solid waste and study of its operation modes

Background. Pyrolysis is a promising environmentally friendly thermal method to process municipal solid waste (MSW). Pyrolysis makes it possible to obtain a combination of solid, liquid, and gaseous products in various proportions by changing the operating parameters of the process. Thermal processing of MSW is carried out in special furnaces, thermal reactors. At present, the processes of the pyrolysis technology Purox, Torrax Noell and others are carried out in thermal reactors of various designs that have their own advantages and disadvantages. The design of a furnace is to meet several requirements, such as high productivity, efficiency of operation, ensuring the specified technological conditions of the process, etc. The designed furnace is to meet modern requirements of science and technology in the field of heat and mass transfer theory, hydrodynamics, and technical aesthetics. Materials and methods. The studies have been carried out using the methods of physical and mathematical modeling, the ANSYS software package of finite element analysis. Results. Based on the results of physical and numerical studies, the values of the efficiency of the pyrolysis furnace have been obtained when MSW is heated at speeds of 5, 10 and 15 оС/min. Based on the results a rational operating mode of the installation has been chosen with a heating rate of 10 оС/min. Conclusions. The use of pyrolysis technology for waste disposal will reduce CO2 emissions by 17 % compared to traditional incineration. The proposed design of a pyrolysis furnace for the disposal of pre-prepared waste contributes to energy efficiency improvement of the process.