ENERGY EFFICIENCY OF SUN PROTECTION DEVICES

Abstract

The issue of ensuring comfortable living conditions for humans lies at the heart of creating and improving the indoor microclimate. This can also be achieved due to the energy efficiency of solar shading devices.

This issue is relevant not only for the cold period of the year, when heating of the premises is necessary, but also for the warm period. During the cold period, the resulting thermal energy is of interest, which is the difference between the energy gained and lost through translucent structures. To select a double-glazed window, incoming solar radiation, external and internal temperatures were taken into account.

Since the climatic conditions of Moscow are similar in terms of average annual temperature and solar radiation (1400 -1700 hours of sunshine per year) to the climatic conditions of Stockholm, the reduction in annual energy consumption for air conditioning of premises due to external sun-protection devices in Moscow is the same as in Stockholm - 23%. Based on these climate parameters in Paris and Simferopol, the reduction in annual energy consumption for room air conditioning due to external sun-protection devices in Simferopol is greater than in Paris (27.5%).

Subject of research: The subject of research is the energy efficiency of sun-protection structures and devices.

Materials and methods: The article proposes a determination of the energy efficiency of sun protection devices based on the similarity of climatic conditions of Russian cities and the capitals of European countries.

Results: The amount of energy spent on heating, which is compensated by solar energy, and the amount of solar energy screened by external solar shading devices were determined. The results of these calculations and climatic parameters made it possible to determine the reduction in energy consumption necessary to air-condition the building throughout the year.

Conclusions: Proper use of sun protection devices can significantly reduce energy consumption for room air conditioning. However, passive solar heating and cooling technologies are underutilized in building design. The reasons are as follows: 1. Economic factors - in most cases, new technologies and solutions are more expensive than those that are already in use, although they quickly pay for themselves (for low-energy buildings 5-7 years). 2. Lack of technical knowledge, as well as reluctance to learn it. 3. Reluctance and inability to use “new” technologies.