Efficient Multi-Layer Wall Panel

A comprehensive analysis of the multilayer wall panel has been performed. The heat-insulating layer,   the thickness of which affects both the dimensions of the enclosing structure and the heat-shielding efficiency of the wall panel, has been studied,. Reducing the thickness of the thermal insulation layer is an important issue, since the production of three-layer panels is expensive in energy and material terms. The features of using a different number of screens to reduce the size of the thermal insulation layer are presented. An example of the possibility of  a maximum reduction in the size of the heat-insulating layer, when the thickness of the interlayer d_in cannot be less than 3–5 mm is given. It is shown that the total thickness of the thermal insulation layer will be 0.057 m in the presence of the maximum possible number of screens – 12. For these conditions, the temperatures in the enclosure planes are calculated, according to the values of which the values of the maximum partial pressures E and partial pressures of water vapor e are determined (for the variants of perforated е¢ and non-perforated е¢¢ screens). According to the obtained values the dependences E, е¢, е¢¢ on the temperature in the planes of the fence are constructed. The calculations carried out and a general assessment of the heat and humidity regime in the enclosing structures were confirmed with the help of the compiled program and the calculation of the necessary parameters е and t in the layers of the structure. It has been established that various shielding materials can be used to exclude condensation zones during the operation of enclosing structures.

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