A Technique for Determining a Polymer Product Temperature Time Dependence Under Process Air Cooling

The issue of heat removal in various processes is topical and often determines the efficiency of the achieved result. The authors of the article consider the issue of heat removal in the process of manufacturing rectangular and cylindrical polymer products under specified process conditions. The authors propose an approach for determining the operating and design parameters of a cooling chamber based on the technique for determining the time dependence of the temperature of air-cooled workpieces in a turbulent flow regime. To estimate the time dependence of the temperature of the cooled rectangular workpieces, it is assumed that each of them is in approximately the same conditions. Therefore, to perform such an evaluation, the cooling of an individual product is considered. A similar approach is used for products in the form of thick-walled hollow cylinders. The complexity of formalization due to the random loading of workpieces into the container, is resolved by considering the so-called triangular packaging, closest to the natural laying of products. Thus, a method of engineering evaluation of air cooling of polymer products of various shapes required within the manufacturing process has been developed. The proposed approach makes it possible to evaluate the time dependence of the temperature of workpieces of various shapes and to select the optimal input parameters of the cooling method, i.e. it can be adapted to other materials of products.