Numerical simulation of the heat transfer process in the radiation-convective defrosting device

In this paper, we consider a numerical method for solving the non-stationary heat transfer problem when coal is heated in a special defrosting device. Frozen coal cannot be unloaded from the car without preheating. The heating rates of coal and car elements were determined experimentally, and the parts most susceptible to overheating were also identified. The problem of optimizing the thermal regime of the defrosting device was not solved in the course of experimental studies, due to operational limitations. Numerical modelling of the process of coal heating in the defrosting device made it possible to circumvent these limitations. As a result, a method is proposed that allows to shorten the time of coal heating by using a special thermal regime.