Blar i NTNU Open på forfatter "Ivanko, Dmytro"
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Analysis of electricity use and economic impacts for buildings with electric heating under lockdown conditions: examples for educational buildings and residential buildings in Norway
Ding, Yiyu; Ivanko, Dmytro; Cao, Guangyu; Brattebø, Helge; Nord, Natasa (Peer reviewed; Journal article, 2021)The COVID-19 pandemic has caused significant impacts on energy demand in Norway and many countries. It is important to improve the existing knowledge of building operation under unforeseeable disturbances. This study aimed ... -
Analysis of energy signatures and planning of heating and domestic hot water energy use in buildings in Norway
Tereshchenko, Tymofii; Ivanko, Dmytro; Nord, Natasa; Sartori, Igor (Journal article; Peer reviewed, 2019)Widespread introduction of low energy buildings (LEBs), passive houses, and zero emission buildings (ZEBs) are national target in Norway. In order to achieve better energy performance in these types of buildings and ... -
Analysis of heat use profiles in Norwegian educational institutions in conditions of COVID-lockdown
Ivanko, Dmytro; Ding, Yiyu; Nord, Natasa (Peer reviewed; Journal article, 2021)The COVID-19 pandemic at the beginning of 2020 has significantly affected the energy demand in Norway. In order to avoid unnecessary energy use and ensure the proper functioning of buildings, it becomes essential to have ... -
Analysis of monthly and daily profiles of DHW use in apartment blocks in Norway
Ivanko, Dmytro; Walnum, Harald Taxt; Sørensen, Åse Lekang; Nord, Natasa (Peer reviewed; Journal article, 2020)Profiles of domestic hot water (DHW) use give valuable information for achieving energy saving in buildings. In this article, analysis of monthly and hourly profiles in apartment blocks in Norway was performed. The aim was ... -
Cyber-Security Assessment of Power System Digital Components in the Conditions of Hostilities
Mishchenko, Denys; Oleinikova, Irina; Ivanko, Dmytro (Chapter, 2023)Emergencies, including hostilities, create additional cyber-physical security (CPS) challenges for the operation of digital power system components. This paper showcases the main problems faced by one of the components of ... -
Development and analysis of hourly DHW heat use profiles in nursing homes in Norway
Ivanko, Dmytro; Walnum, Harald Taxt; Nord, Natasa (Peer reviewed; Journal article, 2020)Representative profiles for domestic hot water (DHW) heat use are the main instruments for improvement in operation and design of DHW systems in buildings. To improve the existing method for DHW heat use profiles development ... -
DHW tank sizing considering dynamic energy prices
Nord, Natasa; Ding, Yuemin; Ivanko, Dmytro; Walnum, Harald Taxt (Peer reviewed; Journal article, 2021)Due to the rapid development of the building stock in Norway, the energy use in this segment is drastically increasing. Therefore, improving the energy performance of buildings becoming an urgent problem. Among technical ... -
Digital Energy Platforms Considering Digital Privacy and Security by Design Principles
Cali, Umit; Dynge, Marthe Fogstad; Idries, Ahmed Yousif Mohamed; Mishra, Sambeet; Ivanko, Dmytro; Hashemipour, Naser; Kuzlu, Murat (Chapter, 2023)The power system and markets have become increasingly complex, along with efforts to digitalize the energy sector. Accessing flexibility services, in particular, through digital energy platforms, has enabled communication ... -
Domestic hot water decomposition from measured total heat load in Norwegian buildings
Lien, Synne Krekling; Ivanko, Dmytro; Sartori, Igor (Chapter, 2020)In Nordic climates, the energy use in buildings is dominated by space heating (SH) and domestic hot water (DHW). Heat load measurements with hourly resolution from smart meters are now becoming the standard. However, in ... -
DSO-LEC Optimization Using Demand-Side Flexibility Resources: A Case Study From a German Distribution Grid
Bardal, Kaja; Melle, Sebastian Engmo (Master thesis, 2023)Kraftsystemet er i rask endring, og integreringen av fornybare energikilder byr på problemer når det kommer til balanse og stabilitet i nettet. Nettoperatørene står fremfor et veiskille hvor de enten kan investere store ... -
DSO-LEC Optimization Using Demand-Side Flexibility Resources: A Case Study From a German Distribution Grid
Bardal, Kaja; Melle, Sebastian Engmo (Master thesis, 2023)Kraftsystemet er i rask endring, og integreringen av fornybare energikilder byr på problemer når det kommer til balanse og stabilitet i nettet. Nettoperatørene står fremfor et veiskille hvor de enten kan investere store ... -
Energy consumption for domestic hot water use in Norwegian hotels and nursing homes
Walnum, Harald Taxt; Sørensen, Åse Lekang; Ludvigsen, Bjørn; Ivanko, Dmytro (Journal article; Peer reviewed, 2019)Domestic Hot Water (DHW) production constitutes a significant proportion of the energy demand of modern buildings, and as the building envelope is improved the share increases. This article discusses the results from a ... -
Hybrid AC/DC-OPF ADMM model for TSO coordination with multiple DSOs in Flexibility Market
Ivanko, Dmytro; Vågane, Ine Solsvik; Hashemipour, Seyed Naser; Oleinikova, Irina; Crespo del Granado, Pedro Andres; Farahmand, Hossein (Peer reviewed; Journal article, 2022)Unlocking potential from flexibility assets is an effective way to address power grid challenges. Proper coordination between transmission and distribution system operators (TSO and DSOs) is key to achieving this goal. ... -
Identifying important variables and profiles of domestic hot tap water energy use in Norwegian buildings by using statistical methods
Ivanko, Dmytro (Doctoral theses at NTNU;2021:67, Doctoral thesis, 2021)Domestic hot water (DHW) systems are an integral component of buildings and a substantial consumer of energy. Due to the introduction of highly insulated structures, the share of DHW heat use in the total energy balance ... -
Identifying typical hourly DHW energy use profiles in a hotel in Norway by using statistical methods
Ivanko, Dmytro; Nord, Natasa; Sørensen, Åse Lekang; Plesser, Thale Sofie Wester; Walnum, Harald Taxt; Sartori, Igor (Journal article; Peer reviewed, 2019)The aim of this research is to improve the existing approaches of domestic hot water (DHW) energy use analysis in buildings. A comprehensive statistical analysis of hourly DHW energy use for a hotel in Oslo, Norway, was ... -
Model Development for coordination of flexibility resources in grid connected Local Energy Communities
Pedersen, Jørgen Kipperberg (Master thesis, 2022)De siste tiårene har det vært en rask økning i mengden ikke regulerbare energiressurser i den europeiske kraftmiksen, noe som har ført til et behov for nye måter å kontrollere kraftmarkedet på. Disse nye kraftressursene ... -
Multi-Period Hybrid AC/DC-OPF Model for Flexibility Market Clearing With Seamless TSO-DSO Coordination
Sierazewski, Damian; Olsen, Ole Kjærland; Ivanko, Dmytro; Oleinikova, Irina; Farahmand, Hossein (Journal article; Peer reviewed, 2023)Unlocking flexibility assets from the consumer side and developing a well-functioning flexibility market (FM) is crucial to address the oncoming challenges in the EU power grid. In these conditions, the coordination between ... -
Prediction of DHW energy use in a hotel in Norway
Ivanko, Dmytro; Nord, Natasa; Sørensen, Åse Lekang; Sartori, Igor; Plesser, Thale Sofie Wester; Walnum, Harald Taxt (Journal article; Peer reviewed, 2019)Domestic hot water (DHW) systems are significant consumers of energy in buildings. This article is dedicated to hourly and daily DHW energy use modeling, with the aim of achieving energy savings in buildings. The methods ... -
Selecting the model and influencing variables for DHW heat use prediction in hotels in Norway
Ivanko, Dmytro; Sørensen, Åse Lekang; Nord, Natasa (Peer reviewed; Journal article, 2020)Domestic hot water heat use prediction modelling is an important instrument for increasing energy efficiency in many buildings. This article addressed hourly domestic hot water heat use prediction, using a Norwegian hotel ... -
Splitting measurements of the total heat demand in a hotel into domestic hot water and space heating heat use
Ivanko, Dmytro; Sørensen, Åse Lekang; Nord, Natasa (Journal article; Peer reviewed, 2020)To achieve more efficient energy use in buildings, space heating (SH) and domestic hot water (DHW) heat use should be analysed separately. Unfortunately, in many buildings, the heat meters measure the total heat use only, ...