Browsing by Author "Bordun, Maryna"

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Design of Proactive Management System for Residential Buildings by Using Smart Equipment
(TECHNOLOGY CENTER PC, Kharkiv, 2023) Savytskyi, Mykola V.; Shekhorkina, Svitlana; Bordun, Maryna; Babenko, Maryna; Tsyhankova, Svitlana; Spyrydonenkov, Vitalii; Savytskyi, Oleksandr M.; Rabenseifer, Roman
ENG: This study's object is an energy efficiency of residential sector. The work is aimed at solving the task to improve the energy efficiency of the housing sector by devising technical solutions for monitoring and managing energy consumption and microclimate parameters of buildings. The proposed proactive management system for residential buildings consists of multi-sensors measuring CO2, temperature and humidity, smart meters of heat and electricity consumption, and smart plugs. The equipment is combined into single system through an integration controller with remote user access through an interactive web interface. A feature of the technical solution is the ability to collect, process, visualize, and archive data on the consumption of energy, as well as on the key parameters of the microclimate of residential premises. The advantages of the system are its flexibility due to the possibility of integrating additional devices during operation, as well as the use of standard communication protocols, which enables the interchangeability of component elements. The implementation and testing were carried out under the conditions of a real pilot site. The use of the system in practice confirmed the efficiency and stability of the operation, making it possible to obtain data on the parameters of energy consumption and microclimate and devising recommendations for reducing energy consumption at the pilot site. It was established that the microclimate meets the requirements of the standards (air temperature is about 22 °С while relative humidity does not exceed 60 %). Decrease in energy consumption can be achieved by reducing the temperature of the heat carrier in the absence of residents, as well as by considering the influence of weather conditions. During periods of residents’ activity, an excess of the permissible level of CO2 was recorded, therefore, automatic ventilation systems should be provided in the apartments.
Development of Test Methods in the Process of Electrically Conductive Concrete Production
(IOP Publishing Ltd, 2024) Savytskyi, Mykola V.; Pang, Weixiang; Sun, Lijun; Savytskyi, Oleksandr M.; Bordun, Maryna; Li, Yang; Xia, Yanfang; Wang, Haojie
ENG: Prevention of climate change, implementation of sustainable development principles in building industry, creation of Green buildings, Three-zero buildings (zero energy, zero emissions, zero waste), energy independent buildings maybe on the base of Smart Concrete. Electrically Conductive Concrete as type of Smart Concrete have the possibilities to create multifunctional hybrid structures for various purposes. The production of electrically conductive concrete is usually based on the introduction of carbon materials and carbon nanomaterials (CNMs) as electrically conductive fillers into its concrete composition. The theory of conductive percolation is used for design of electrically conductive concrete. To select electrically conductive carbon filler, it is necessary to summarize their electrically conductive characteristics. Today, there is no standard for determining the electrical conductivity of carbon fillers, nor is there a method for designing the composition of electrically conductive concrete; the development of both is imperative. Features of the preparation of electrically conductive concrete with hydrophobic carbon nanoparticles prone to aggregation are indicated. To obtain high quality electrically conductive products an operating system for quality control at the stages of the technological process of manufacturing must be proposed. Homogenization of the electrically conductive filler is very important. It is necessary to propose a method for assessing the stability of an aqueous suspension of a hydrophobic carbon material used for homogeneous distribution of a filler. Due to the lack of a standard, a method for determining the electrical conductivity of concrete is also needed.
How Much Is Needed? Discussion on Benchmarks for Primary Energy Input and Global Warming Potential Caused by Building Construction
(MDPI, Basel, Switzerland, 2025) Rabenseifer, Roman; Kalivodová, Martina; Kononets, Yevhen; Mahas, Nataliia; Minarovičová, Katarína; Provazník, Robert; Bordun, Maryna; Shekhorkina, Svitlana; Savytskyi, Mykola V.; Savytskyi, Oleksandr M.; Semko, Volodymyr
ENG: The operational energy efficiency of new buildings in the EU should be at the level of ultra-low or near-zero energy buildings. It is therefore relatively difficult to achieve further energy savings. However, the pre-operational phase—raw material sourcing, manufacturing, transportation, and construction—offers significant energy savings and greenhouse gas reduction opportunities, referred to as embodied energy and equivalent CO2 emissions. Unlike operational energy, no standard or legislative criteria have yet been established for embodied energy. Setting maximum embodied energy values converted to the unit of heated building area, accounting for building shape factor, and differentiating between high-mass and lightweight constructions are proposed. This study illustrates assessing environmental indicators based on building shape, highlighting the necessity of relative assessments over absolute values to favour energy efficiency. It also emphasizes that precise criteria should derive from authentic data collected during the energy certification and building permitting processes. Integrating assessments of embodied energy and operational energy demand facilitates a comprehensive evaluation of buildings’ environmental performance.
Life cycle environmental impact of buildings
(Ukrainian State University of Science and Technologies, 2025) Savytskyi, Mykola V.; Shekhorkina, Svitlana; Bordun, Maryna; Sopilniak, Artem; Nikiforova, Tetiana; Babenko, Maryna; Zinkevych, Oksana
ENG: The textbook examines modern approaches to assessing the environmental impact of buildings throughout their life cycle. It presents an analysis of global environmental challenges and international programs and strategies for mitigating them, highlighting the role of the construction sector in reducing its carbon footprint. The publication outlines the main stages of the building life cycle, including methods for assessing environmental impacts at each stage, the regulatory framework, the specifics of using environmentally friendly materials, and the standards of ecological certification (LEED, BREEAM, DGNB), along with practical examples of their implementation. Special attention is devoted to BIM-integrated life cycle analysis technologies and digital tools such as OneClickLCA for modeling embodied emissions. The textbook is intended for students of architecture and construction specialties, researchers, and professionals in the fields of architecture, civil engineering, and building materials production. The textbook was prepared as part of the International Project under the Erasmus programme 101127884 — The Bridge — ERASMUS-EDU-2023-CBHE «Bridging the gap between university and industry: Master Curricular Supporting the Development of Green Jobs and Digital Skills in the Ukrainian Building Sector»
Proposals for Revitalizing Urban Post-Industrial Areas: A Case Study of a French Town
(EDP Sciences - Web of Conferences, France, 2024) Merylova, Iryna O.; Zinkevych, Oksana G.; Bordun, Maryna; Zinkevych, Andrii M.; Rabenseifer, Roman
ENG: The article aims to investigate the current state and identify potential development pathways for the small industrial town of Lavaveixles-Mines in the Creuse Department of the Nouvelle-Aquitaine region, France. The purpose of this study is to develop and propose architectural and urban planning measures and initiatives for the restoration and reactivation of post-industrial areas using the case of the researched city. The methodology used in this research is based on an interdisciplinary approach that combines architecture, urban planning, urbanism, history, sociology, economics, and ecology. This has contributed to the development of innovative solutions aimed at revitalizing outdated industrial territories while preserving their unique identity. As a result, the most effective concept for architectural and urban planning transformation of the city was found and some specific methods and techniques presented in this study were developed.