ORIGINAL RESEARCH article
Front. Built environment.
Sec. Indoor environment
Volume 10 – 2024 |
doi: 10.3389/fbuil.2024.1502794
Tentatively accepted
- 1
National Technical University of Ukraine, Kyiv, Ukraine
- 2
General Energy Institute of NAS of Ukraine, Kyiv, Ukraine
- 3
Riga Technical University, Riga, Latvia
The final, formatted version of the article will be published shortly.
Improving living comfort and/or working conditions in buildings usually requires an increase in energy and building material consumption, e.g. B. for thermal modernization, and thus additional economic costs. It is also important to note that this does not always lead to a reduction in total emissions of pollutants into the environment, taking into account emissions at all stages of production and use of energy and materials for energy efficiency and comfort in buildings. The work is devoted to the problems of modeling energy supply systems for buildings, including methods and means for simulating thermal regimes of buildings and their technical systems, as well as methods and means for modeling the operating modes of heat pumps that can be used in such systems for coordinated improvement of energy efficiency and the indoor climate in buildings. Based on the developed mathematical models, the dynamic modes of building energy supply systems are studied and recommendations are made to improve their efficiency. The dynamic models of the power supply system are implemented in the MATLAB/Simscape software environment and the possibilities (schemas) for detailing the components of different types of sources are shown. The results obtained were verified using energy models created using the widely used software product EnergyPlus. It was found that according to the quasi-steady state method, the deviation of energy consumption does not exceed 13% and is about 5% in dynamic modes. The possibilities of using a gas boiler and a heat pump as the most common sources of individual energy supply systems for buildings are examined. It was found that the heat pump has more flexible load level control. Its use can reduce the instantaneous power value by up to 40%, but the frequency of switching on the pump is much higher (about 4 times) compared to the gas boiler. When the energy sources produce the same amount of energy, the heat pump maintains the temperature within the set range more efficiently, thus avoiding overheating.
Keywords:
Energy modeling, buildings, energy supply system, energy efficiency, comfortable temperature
Receive:
September 27, 2024;
Accepted:
Dec 30, 2024.
Copyright:
© 2024 Bilous, Biriukov, Eutukhova, Novoseltsev, Voloshchuk and Prozuments. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY). Use, distribution or reproduction in other forums is permitted provided that the original author(s) or licensors are credited and the original publication in this journal is cited in accordance with accepted scientific practice. Any use, distribution or reproduction that does not comply with these conditions is not permitted.
* Correspondence:
Alexey Prozuments, Riga University of Technology, Riga, Latvia
Disclaimer:
All claims made in this article are those of the authors alone and do not necessarily represent those of their affiliated organizations or those of the publisher, editors, and reviewers. No claims exist for any product reviewed in this article or for any claims made by its manufacturer Warranty or support from publisher.