EVALUATION OF THE EFFICIENCY OF THE OPTIONS FOR THE MODERNIZATION OF THE HEAT SUPPLY AND THERMAL PROTECTION OF THE OFFICE BUILDING

Abstract

The concept of implementation of the state policy in the field of ensuring the energy efficiency of buildings in terms of increasing the number of buildings with close to zero energy consumption and the National Plan for the increase in the number of buildings with close to zero energy consumption are aimed at achieving the goals set out in the Energy Performance of Building  Directive, which indicates significant steps towards improving the energy efficiency of the Ukrainian construction sector. According to the above  regulations, a prerequisite for new construction and renovation of existing buildings is to ensure a high level of thermal insulation of the building and the use of renewable sources to cover energy consumption. The work carried out a feasibility study of the modernization of an office building in the city of Kyiv to the level of a highly energy-efficient building using a heat pump to provide the necessary heat supply. Estimation of generation of required heat supply of the building by the heat pump and used electrical energy by the heat pump is based on  the simulation results in the GeoTSOL software environment. In order to assess the economic attractiveness of the project for upgrading an existing building to the level of a highly energy-efficient  building using renewable sources for heat supply, the calculation of the energy demand for heating in the Design Builder software environment and the integral costs for heating the building using renewable and  traditional energy sources at different  levels of thermal protection was made. The results obtained indicate attractive, both from an economic and  environmental point of view, the possibilities of implementing the construction of a highly energy-efficient building that uses renewable energy sources for heat supply.