Thermal properties of enclosing structures manufactured by additive methods: Analysis of the influence of structural heterogeneity

Heat supply, ventilation, air conditioning, gas supply and lighting
Authors:
Kotov, Evgeny VladimirovichMishchikhin, Sergei AntonovichSergeeva (Nemova), Darya ViktorovnaOlshevskiy, Vyacheslav IanushevichKotliarskaia (Vasileva), Irina LeonidovnaIakovlev, Nikita Artemovich
Abstract:

The object of research is samples of enclosing structures created using additive manufacturing. The subject of research is the thermal performance of the samples. Method. A laboratory method was used to test the stability of additive enclosing structures under climatic conditions in St. Petersburg, Russian Federation (Dfb climate). Numerical modeling of heat transfer processes was also used. Results. Additive enclosing structures are classified by geometric characteristics and manufacturing method. The temperature distribution and heat flow in the additive structures were studied in a climatic chamber. Numerical modeling in Ansys Steady-State Thermal showed a high degree of agreement with the experimental results, confirming the adequacy of the selected model and the correctness of the specified boundary conditions. Thermal homogeneity coefficients were calculated for all samples. Sample with configuration 1 is the most thermally homogeneous. The thermal homogeneity coefficient for a structure without filler is 1. The thermal homogeneity coefficient for a structure with filler is 0.95.

Key words:
Enclosing structuresAdditive manufacturing3D printingNumerical modelingThermal heterogeneityClimate chamber
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