SELECTION OF TEMPERATURE MEASURING POINTS IN A CYLINDER

Magda Joachimiak; Damian Joachimiak; Leon Bogusławski; Andrzej Frąckowiak; Michał Ciałkowski

Magda Joachimiak Poznan University of Technology, Faculty of Machines and Transport
Damian Joachimiak Poznan University of Technology, Faculty of Machines and Transport
Leon Bogusławski Poznan University of Technology, Faculty of Machines and Transport
Andrzej Frąckowiak Poznan University of Technology, Faculty of Machines and Transport
Michał Ciałkowski Poznan University of Technology, Faculty of Machines and Transport

Keywords: temperature measurement, heat treatment, direct and inverse problems, radiation

Abstract

This paper presents the method of selection of temperature measuring points in a cylinder. Measuring points were selected with regard to technological capabilities of spot drilling and the accuracy of measuring system of the heat-treating furnace VTR PP. Analysis showed where thermocouples should be located so that the heat flow in the heated cylinder was minimally disturbed. Calculation model developed in the FreeFEM++ environment is presented in this paper. It includes unsteady heat conduction equation and depended on the temperature heat conduction coefficient as well as specific heat for the material of the cylinder. Finite elements method was used for calculations. This method can be applied for cylinder geometry irrespective of heating parameters and the material the heated element is made of.

Keywords:
temperature measurement, heat treatment, direct and inverse problems, radiation