ANALYSIS OF ENERGY CHARACTERISTICS OF THE STUDY BUILDING OF THE COMPLEX CONFIGURATION WITH THE DEVELOPMENT OF PROPOSALS FOR TO INCREASE ENERGY EFFICIENCY

Abstract

There are many approaches to assessing the energy performance of buildings. In Ukraine, previously, when developing the energy passport of buildings, a method based on stationary calculations using degree-days of the heating period was used. Then, for the tasks of energy certification of buildings, a national calculation method based on the monthly quasi-stationary method was introduced. The simplified hourly method of calculation allows to consider thermal inertia of protections. In recent years, the methods of dynamic energy modeling using software packages have become increasingly relevant, because it allows at the preliminary design stage to estimate energy costs for different building needs before and after the implementation of energy efficiency projects and provides the ability to create 3D models based on geometric and thermal parameters, tasks of different configurations and types of engineering systems of the building. To build an energy model, a training building was chosen to determine energy consumption indicators and identify measures that have the greatest impact on the energy performance of the building.

Purpose. Evaluation of energy characteristics of the educational building of a higher education institution with modeling of energy consumption in specialized software, technical and economic evaluation of opportunities to increase energy efficiency.

Research methods. Energy inspection of the object of research and technical and economic analysis with the use of engineering methods of calculation, experimental measurements of the parameters of the microclimate of the building with the use of laboratory equipment were performed. Simulations are used in specialized software products RETScreen, EnergyPlus, DesignBuilder.

Result. With the help of the developed models the structure of energy consumption of the educational building is obtained and the assessment of energy saving potential is carried out; in case of implementation of the proposed measures it is expected to reduce the consumption of energy resources and monetary costs for their payment, as well as improve the quality of educational services. The research was conducted as part of a master's thesis.

Scientific novelty. The technical potential of this software for modeling the energy performance of a building of complex configuration on the example of the educational building of the educational institution, analyzed the methods of processing initial data for programs, comparative analysis of calculation results for the actual condition of the building, baseline and after implementing energy saving measures.

Practical significance. As a result of the research, the potential of using different software packages to perform applied research of the master's dissertation was determined and a project of complex thermal modernization of the building of the educational building was developed.