TO THE DEFINITION OF CRITICAL MICROCLIMATE CONDITIONS IN PREMISES DURING DISRUPTIONS HEAT SUPPLY SYSTEMS

These days in Ukraine one of the relevant tasks is to maintain the microclimate conditions indoors. Atthe same time, the state of war and the extreme conditions emergence related to the failure of heat supply systems leadto occurrence of critical microclimate conditions. It is known that the enclosing structures of the building includeexternal − walls, windows, other glazed surfaces, coverings of various types and floors, as well as − internal structures,that is, partitions and internal load-bearing walls, floors based on inter-floor ceilings, etc. These enclosing structureshave their influence on the distribution and fluctuations of temperatures in heated rooms. This effect may depend on theroom location in the building perimeter, the size of the room, etc. Modern prefab and block buildings of massconstruction, built according to typical projects, differ from traditional ones in that they have a smaller mass of wallstructures and a larger area of glazing of external enclosures, which has reduced their heat resistance [1−3]. Therefore,determining the critical conditions of the indoor microclimate during disruptions of the heat supply system is a relevanttask. The purpose of the article. Analysis and substantiation of decisions to ensure the required level of reliability andefficiency for elements of the building's heat supply complex from the standpoint of guaranteed support for necessaryinternal thermal conditions during disruptions of the heat supply. Conclusions. 1. Considering the disconnection of theheat supply, the critical conditions for the microclimate in the residential premises are determined. 2. Modelling theindoor climate, taking into account constructive and planning decisions and changes in temperature depending on theseason, allows to predict the adoption of precautionary measures for the equipment operation in buildings and to keepengineering communications in working condition [4−6].