Abstract
This work presents the theoretical investigations results for the brick wall thermal protection properties exterior corner with the insulated layer SUPERROCK mineral wool. As the outer corner of the enclosing structures has lower thermal protection properties than the other part of the wall, it needs additional insulation. Two variants of additional insulation were considered in the work, in the deepened outer surface and in the middle of the brick wall. In this case, the additional heater was not continuous, but divided into two parts and shifted from the corner. The length and volume of additional insulation for different variants were determined. The optimal variant of the proposed schemes was determined by the minimum volume of the heater and compared with the existing ones. The volume of additional insulation is set at 1 meter of the fence height. For the proposed variant of the location for the heater in the brick wall middle, its thickness in the brick cavity, the length and offset from the corner magnitude were determined. For a location-variant of the heater in the deepened on the outer surface of the fence bricklayer, the length of the additional insulation and its displacement from the corner were determined. The thickness of additional insulation was taken 130 mm (width of the brick and seam between the bricks). Studies were carried out for the first temperature zone.
Highlights
One of the way of saving the thermal energy going to the heating of buildings and structures is improvement the thermal units of enclosure constructions
1.With the application of additional insulation of the corner of the scheme No.1 with a decrease in its thickness and corresponding increase in length, the capacity of insulation needed to meet the requirements of thermal insulation decreases
The smallest capacity of additional insulation is observed at its thickness of 30 mm, if it is located throughout the length of the calculation scheme without shifting from the corner
Summary
One of the way of saving the thermal energy going to the heating of buildings and structures is improvement the thermal units of enclosure constructions. One of such thermal units is the outer corner of the external enclosures. Heat nodes are places with a lower heat transfer resistance than the main fence, and contribute to increased heat loss. Improving the insulation of the outer corner of the brick wall is an urgent task. The optimal location and dimensions of additional insulation are determined. By the criterion of optimality, the minimum amount of additional insulation is adopted, at which the requirements of thermal protection are fulfilled
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