CALCULATION OF THE CONVENIENT NATURE FREQUENCY OF POWER BOILER IN MANAGER BUILDINGS IN THE CONDITIONS OF EXTERNAL AND DOMESTIC ENVIRONMENTAL CHANGES

Abstract

Taking into account the development of the normative base of Ukraine regarding the assessment of energy efficiency of buildings, aimed at reducing the time intervals of calculation, it is important to calculate the level of energy efficiency taking into account the variability of environmental conditions. It should be noted that air exchange is one of the most influential components in the energy balance of the building. The article deals with the generalized method of calculating the natural component of the multiplicity of air exchange. The calculations used data file IWEC international climate typical year for the city of Kyiv. In this work the building is considered as a system and the air exchange of premises of the 8 storey building is calculated. The natural component of the multiplicity of air exchange is designed to support air permeability of the most typical characteristics of translucent structures. It is established that for modern double-glazed windows the hourly calculation of the natural component of the multiplicity of air exchange at a different location of representative premises showed that the value does not exceed 0, 25 h -1 , triple glazing in wooden twisted weaving – 0,4 h -1 , double -0,65 h -1 . It should be noted that in the first floors, the natural component of the multiplicity of air exchange has a positive value (air infiltration) on the upper floors, the negative value (air exfiltration), which must be taken into account when dynamically modeling the energy characteristics of the building. In order to maintain the normative value of the multiplicity of air exchange during the presence of people in the room, it is necessary to use mechanical ventilation additionally. In further research, it is planned to clarify the conditions of air traffic flooding taking into account the landscape, taking into account mechanical ventilation and recovery.