Browsing Ústav elektroenergetiky by Title
Now showing items 1-20 of 33
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Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps
(MDPI, 2020-03-31)Light emitting diode (LED) lamps are now an established lighting technology, which is becoming prevalent in all load sectors. However, LED lamps are non-linear electrical loads, and their impact on distribution system ... -
Analysis of fast neutron transport in chloride salts using Monte Carlo method
(Czech Technical University in Prague, 2020-12-01)The aim of this paper is to present results of fast neutron behavior analysis within the chloride salts environment using simulations based on Monte Carlo method (MCNP 6.2). Three non-fueled salts (NaCl, KCl, MgCl2) and ... -
Analysis of Intensively Blasted Electric Arc Burning in the Arc Heater's Anode Channel
(Czech Technical University in Prague, 2016-10-31)The paper deals with the description of the intensively blasted electric arc burning in Ar in the anode channel of the arc heater operated under various conditions. Directly measured experimental data (current, voltage, ... -
Broadband Power Line Communication for Integration of Energy Sensors within a Smart City Ecosystem
(MDPI, 2021-05-13)The popularity of the Power Line Communication (PLC) system has decreased due to significant deficiencies in the technology itself, even though new wire installation is not required. In particular, regarding the request ... -
Cable Monitoring Using Broadband Power Line Communication
(MDPI, 2022-04-14)Power line communication (PLC) is considered one of the possible communication technologies for applications in the field of smart metering, smart substations, smart homes, and recently for the management of renewable ... -
Condition Monitoring and Maintenance Management with Grid-Connected Renewable Energy Systems
(Tech Science Press, 2022-03-29)The shift towards the renewable energy market for carbon-neutral power generation has encouraged different governments to come up with a plan of action. But with the endorsement of renewable energy for harsh environmental ... -
Cross section determination for TAD materials in quasi mono-energetic neutron spectrum from p(Li) reaction
(EDP Sciences, 2020-10-03)Threshold activation detectors (TAD) are of great importance for a determination of neutron energy spectra and flux density. For different sources, it is necessary to choose the right combination of materials that cover ... -
Distribution of neutrons and protons in elongated targets
(EDP Sciences, 2020-10-03)Analysis of neutron distribution was carried out for two elongated targets. The targets have cylindrical shape and are made of lead and carbon, respectively. The dimensions are approximately one meter in length and 19 cm ... -
Earth fault location based on evaluation of voltage sag at secondary side of medium voltage/low voltage transformers
(IET, 2015-08-07)The main reasons for installation of power quality meters in distribution transformer substations are power quality monitoring and global evolution of electrical network towards the smart grid. In case that all measurements ... -
Evaluation of Filtered Spark Gap on the Lightning Protection of Distribution Transformers: Experimental and Simulation Study
(MDPI, 2020-07-24)Protection of transformers, as one of the most expensive equipment in the power system, against lightning overvoltage impulses is a vital task. This paper, for the first time so far, investigates the effects of a filtered ... -
Experimental investigation and Monte Carlo simulations of radionuclide production inside the Uranium spallation target QUINTA irradiated with a 660-MeV proton beam
(EDP Sciences, 2019-04-03)The accelerator-Driven-System (ADS) is very important to study the neutron field and radionuclide production inside simple-geometry uranium subcritical setups irradiated with high energy particle beams. A subcritical setup ... -
EXPERIMENTAL INVESTIGATION OF CRITICAL HEAT FLUX IN ANNULUS AT LOW PRESSURE AND LOW FLOW PARAMETERS
(Czech Technical University in Prague, 2020-12-01)Steady state flow boiling experiments were conducted on a technically smooth Inconel 625 tube with outer diameter 9.1 mm at inlet pressures 131, 220 and 323 kPa, inlet temperatures 62, 78 and 94 °C and approximately 400, ... -
Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow
(MDPI, 2020-10-06)Steady state flow boiling experiments were carried out on several heated tubes with outer diameter 9.14 mm at outlet pressures 120, 200 and 300 kPa, inlet temperatures 64, 78 and 91 °C and approximately 400, 500, 600 and ... -
A Focus on Electromobility within Smart City Solutions- Charging Stations, Renewable Energy, and Air Quality Monitoring
(MDPI, 2022-10-15)This paper reviews some of the existing methods for charging electric vehicles, generating renewable energy, and storing it. Plans of practical implementation in the city of Brno are compared with the situation in Glasgow. ... -
Hybrid Energy System - Optimization and New Concept
(Lublin University of Technology, 2014-09-16)Paper presents a research related to the design of a new concept of hybrid energy system. It describes actually used concepts and the benefits of new design. Subsequently, the problems of the proper systems setting and ... -
Hybrid Photovoltaic Systems with Accumulation—Support for Electric Vehicle Charging
(MDPI AG, 2017-06-22)The paper presents the concept of a hybrid power system with additional energy storage to support electric vehicles (EVs) charging stations. The aim is to verify the possibilities of mutual cooperation of individual elements ... -
Impact of advanced inverter functions on low-voltage power grids
(WILEY, 2021-04-23)In today's power grid, a great number of inverter-based distributed energy resources (DERs) are connected and are mainly designed to supply power without considering the voltage and frequency deviations of the grid. ... -
Implementation of Energy Management in the Industrial Sectors
(WSEAS, 2021-07-16)This paper examines whether the implementation of measures through standards, directives and regulations is sufficient to achieve the timely energy policy goals. Furthermore, it needs to be clari-fied whether energy ... -
Investigating the Possibilities for Simulation of the Interconnected Electric Power and Communication Infrastructures
(MDPI, 2022-11-25)In recent years, we have seen an increasing dependency between different urban critical infrastructures, which raises the demands on their analysis and cybersecurity. Current open-source solutions do not provide simulations ... -
Investigation of critical heat flux on abraded inconel 625 tube
(Czech Technical University in Prague, 2020-12-01)Aim of this work was to study flow boiling in an annular channel at low pressure and lowflow on a tube with modified surface roughness. The tube with the outer diameter of 9.14 mm and theheated length of 380 mm was made ...