Abstract:
The research proposes new energy-saving façade constructions with closed horizontal vents, the
analysis of which was carried out in ANSYS environment by the finite element method. The result
of the analysis of the thermal resistance of the developed facade structures shows that a decrease
in the volume of thermal insulation material by 31.25% leads to a significant decrease in the
thermal resistance of the fence for all values of the external temperature, that is, at the absolute
minimum by 26.31%, at the absolute maximum temperature by 26.41%, at the average tem
perature of the coldest five-day security 0.92 by 26.47% and at an average temperature of the first
month after the end of the heating period (April) 26.54%. A similar decrease was also observed
when comparing facade structures with a heat-reflecting screen: at an absolute minimum tem
perature of 24.9%, at an absolute maximum temperature of 24.76%, at an average temperature of
the coldest five-day security of 0.92 by 24.28% and at an average temperature of the first month
after the end of the heating period (April) of 24.07%. At the same time, during the analysis, it was
additionally found that with the same volume indicator of the heat-insulating material in the
developed new façade constructions, the heat-reflective screen presence results in an increase in
the heat resistance value by 10–19%, depending on the climatic conditions of the outdoor
environment. Thus, the research results can be used in buildings’ design and construction in order
to reduce heat consumption and energy saving.
