REACTOR’S THERMOPHYSICAL CHARACTERISTICS WITH AN ELECTROTHERMAL FLUIDIZED BED AND A COMBINED HEATING METHOD

To improve the technological features and efficiency of high-temperature processing of the dielectric materials, a reactor design with the electrothermal fluidized bed with a combined heating method was developed at the Institute of Gas of the National Academy of Sciences of Ukraine. The main purpose of this reactor is the process of applying a pyrocarbon coating to quartz sand. The principle-technological scheme of the process is given. Subsequently, quartz sand coated with pyrolytic carbon will be used to produce pure silicon carbide. The authors developed a methodology for calculating the heat balance, which allows estimating the efficiency of the reactor. A method for calculating similarity criteria was chosen for the possibility of comparing the efficiency of heat exchange in a developed reactor with other machines for thermochemical processes. A description of the heat exchange between the fluidized bed and the electrode is proposed. After further experiments, it willbe possible to make final conclusions regarding improving the technological features andincreasing the efficiency of the process of applying a pyrolytic coating to quartz sand, andalso to check the adequacy of the calculation methods. After further experiments, it will bepossible to make final conclusions about improving the technological features and increasing the efficiency of the process of applying a pyrolytic coating to quartz sand. Also, it will allow to check the adequacy of the calculation methods. Bibl. 17, Fig. 2.