Natural research of the thermal process on the surface of irradiation by infrared heater

Abstract

Comfortable conditions for people to stay in the production room with the use of infrared emitters depend on the uniform distribution of temperatures over the entire area of the irradiation zone. Therefore, the purpose of the research was to determine experimentally the temperature on the irradiation surface with an infrared heater and to summarize the results, for their further use in the design of infrared heaters in various production facilities. The distribution of temperatures on the irradiation surface was determined by the method of experimental studies. To derive the patterns of temperature field distribution on the irradiation surface, the experiment was carried out at variable power of the infrared heater Qheat, W, the height of its installation H, m and different blackness degrees of the floor surface εfloor, which depends on the floor material. The graphical distribution can prove the regularity of that heat in solid materials is distributed due to thermal conductivity – from particles with higher temperatures to less heated. Using mathematical methods of experimental data processing, experimental dependences were approximated to determine the relative temperature of the irradiation surface. The temperature gradient obtained graphically is directed along the normal to the isothermal surface in the direction of increasing temperature. This approach enables considering the development of process in the dynamics and allows the visualization of heating to adjust the basic parameters of process. Scientific results obtained in this work will allow developing a new methodological approach to the study of heating processes on the surface of irradiation by an infrared heater on the basis of a combination of physical and mathematical modeling, which can form an instrumental basis for the target study of such processes of formation of the thermal regime in production facilities. The thermal power of the infrared heater Qheat, W had the greatest influence on the value of the relative temperature of the floor surface tfloor. With constant values of the height of the heater, the blackness degree of the irradiation surface and with increasing the thermal power of the heater twice the value of the relative temperature of the irradiation surface increased by 9.7 %.