Open AccessTHERMAL IMAGING STUDIES OF THE ORIGINAL HEAT EXCHANGER PLATE
Author(s) -
L. Kuschev,
N. Savvin
Publication year - 2021
Publication title -
vestnik bgtu im. v.g. šuhova
Language(s) - English
Resource type - Journals
ISSN - 2071-7318
DOI - 10.34031/2071-7318-2021-6-1-38-45
Subject(s) - plate heat exchanger , heat spreader , heat transfer coefficient , heat exchanger , heat transfer , plate fin heat exchanger , mechanics , shell and tube heat exchanger , ntu method , thermal , materials science , thermodynamics , mechanical engineering , physics , engineering
A modern method for studying the temperature field of heated bodies is considered. The object under study is a corrugated heat exchange plate with an original geometry. Heat exchangers are one of the main types of process equipment in heat supply systems. The article presents a comparison of two main types of heat exchange equipment: shell-and-tube and plate devices. The FLIR i50 thermal imaging device is characterized. A comparison is made between a standard heat exchange plate and a corrugated plate with spherical recesses located linearly on the areas between the corrugations. The use of original plates can increase the efficiency of the heat exchange process due to increased turbulization of the coolant. The relationship between the true temperature of a heated body and the brightness temperature of a black body is established. Experimental studies are carried out, in result the value of the average temperature of the heated body is obtained. This value is necessary for further calculation of heat transfer coefficients, which, in turn, are decisive in calculating the main parameter that characterizes the efficiency of heat exchange equipment-the heat transfer coefficient. The use of thermal imaging is the original way to study heat transfer processes, allowing to show the real increase of heat transfer coefficient of a plate heat exchanger.