THERMAL PARAMETERS OF A RADIATOR WITH A THREE-DIMENSIONAL LATTICE ORDERED STRUCTURE UNDER FREE-CONVECTION CONDITIONS

Results of computational and experimental studies of the thermal parameters of radiators based on a three-dimensional lattice ordered structure under the conditions of free air convection have been presented. To ensure visualization of the qualitative pattern, and also to confi rm the reliability of quantitative results of the study, the authors have carried out thermal imaging investigations enabling them to determine the general pattern of distribution of thermal parameters over the radiator height. The obtained results of physical and mathematical modeling show a satisfactory agreement between the calculations of thermal state of heat-liberating element (HLE) No. 2 and the data obtained in experimental studies in the range of heat loads from 2 to 20 W. For the case of HLE No. 1, certain deviations are observed that can point to the presence of the stagnation zone at the center of the radiator, which contributes to the reduction in the infl uence of free convection as the dominant mechanism of heat transfer
Results of computational and experimental studies of the thermal parameters of radiators based on a three-dimensional lattice ordered structure under the conditions of free air convection have been presented. To ensure visualization of the qualitative pattern, and also to confi rm the reliability of quantitative results of the study, the authors have carried out thermal imaging investigations enabling them to determine the general pattern of distribution of thermal parameters over the radiator height. The obtained results of physical and mathematical modeling show a satisfactory agreement between the calculations of thermal state of heat-liberating element (HLE) No. 2 and the data obtained in experimental studies in the range of heat loads from 2 to 20 W. For the case of HLE No. 1, certain deviations are observed that can point to the presence of the stagnation zone at the center of the radiator, which contributes to the reduction in the infl uence of free convection as the dominant mechanism of heat transfer
Author:  A. A. Lopatin, R. A. Gabdullina, A. R. Biktagirova, A. A. Terent′ev, A. A. Saetgaraev, and O. V. Lopatina
Keywords:  radiator with a three-dimensional lattice structure, heat transfer, eff ective conductivity, three-dimensional lattice structures
Page:  373