Optimization of structural solutions building envelopes of industrial buildings operated in variable thermal conditions

Abstract

The article presents the methodology of thermo-technical calculation of low-heat enclosing structures industrial buildings operated in conditions of variable thermal conditions. According to the proposed methodology, the thickness of the sandwich panel of the outer wall of the industrial building is determined on the basis of the fulfillment of energy saving conditions and the given time of room’s heating. To solve the problem of unsteady heat transfer through the outer wall was applied an approximate analytical method developed by the authors of this article. The presented analytical method by choosing a building envelope allows taking into account not only heat-shielding but also the dynamic characteristics of the fence. This calculation method can be applied at the stage of developing structural solutions for the external fence and detailing of building units in this construction. The results of the heat engineering calculation of the outer wall of a production building under construction are presented as an example. Based on the presented calculation results, it becomes possible to determine the optimal thickness of the insulation layer, at which the designed enclosing structure will satisfy not only the modern requirements of thermal protection, but also provide a given time for the heating of the room.