ON CALCULATING THE INSOLATION OF INDOOR SPACES

Solar radiation has a significant both positive and negative impact on all processes of human life. The construction and operation of both residential and industrial buildings requires an analysis of the sun's influence. Among the areas of scientific research related to solar radiation, the following are particularly relevant: solar energy, the impact of the sun on building envelopes, achieving solar comfort in residential and industrial buildings, and ensuring sanitary and hygienic standards. Insolation is defined as the amount of solar radiation inflow calculated in calories per unit area of a horizontal surface per unit time. Methods for calculating insolation can be divided into two types: geometric and energy-based. The insolation level of residential premises is regulated by state construction legislation. According to the current standards, the duration of insolation of residential premises should be at least 2,5 hours between 22 March and 22 September. These standards define and recommend calculation methods. They are mainly geometric. Energy-based methods for calculating insolation are more dynamic and subject to change, as they take into account the properties of materials. And building materials are constantly being modernizedф and have different reactions to solar radiation. On the other hand, energy-based methods of calculating insolation are more accurate and take into account more factors directly related to a particular building or room. Therefore, a comparative analysis of indoor insolation calculated by different methods is an urgent scientific problem. The development of computer research methods opens up wide opportunities for modelling the insolation state of a dwelling at the design stage. In this paper, an object-oriented method for calculating insolation for residential and industrial premises is developed. This makes it possible to build a spatial picture of the room's irradiation and demonstrate the impact of changes in input parameters on this process.