This article presents a comparative analysis of two prominent machine learning techniques for predicting electricity consumption in workplace lighting systems: polynomial regression and artificial neural networks. The primary objective is to assess their suitability applicability developing an accurate predictive model. After brief overview the current state energy-saving techniques, examines several established models energy buildings systems. These include networks, support vector...

This article deals with the possibilities lighting retrofit and life cycle cost analysis economic in process of increasing energy efficiency buildings. It contains basic information about its implementation for estimation a building system. The accuracy was verified on three systems. first system consisted an old (original) that commonly used office other two systems are based concept lighting. One is switching according to movement people sensing daylight maintaining intensity at prescribed...

The COVID-19 pandemic has caused huge health and economic damages. Various protective face masks, such as single-use, cotton, the most widespread FFP2 or KN95 are used to prevent spread of this virus. However, these masks usually packaged in plastic packaging, which increases amount waste. Plastic gloves also often connection pandemic. All leads a large production equipment, but their use contributes increase type waste, presents new challenge waste management. This article investigates...

In recent years, there has been a growing emphasis on the efficient utilization of natural resources across various facets life. One such area focus is transportation, particularly electric mobility in conjunction with deployment renewable energy sources. To fully realize this objective, it crucial to quantify probability achieving desired state—production exceeding consumption. This article deals computation that required charge an vehicle will originate from source at specific time and for...

Various waste materials have energy potential. It is important to make use of this potential and prepare the product for further by treating waste. Treatments such as compressing into pellets leads increasing density fuel, which benefits transport storage costs. However, low bulk density, high ash content, low-ash melting temperatures, calorific values non-woody can cause problems during their combustion. This article deals with usage walnut shells, were blended spruce sawdust in various...

This paper describes a conventional power plant model, which consists of synchronous generator connected to the model 22 kV distribution grid. is mainly focused on synchronization device. It most important part whole model. responsible for measuring, evaluation measured values and connection itself. Measured parameters are voltage, frequency grid phase shift between them. Only if all conditions fulfilled, connections established.

This paper deals with an impact of small nonlinear loads operation on accuracy the intelligent metering system. The contain circuits semiconductors and electronic converters (AC/DC). These devices feed harmonics current to distribution grid by their it causes issues measurement systems. Paper describes these characteristics using network power analyzer verification system a programmable source, which can generate according measurement. There are two groups loads, were measured. first one is...

The COVID-19 pandemic brought a period of high consumption protective masks and an increase in their waste. Therefore, it was necessary to look at possibilities for disposal. This article is focused on the disposal FFP2 form pellets blended with sawdust. Further, ash melting behavior observed. method preparation can impact resulting values temperatures. this investigates temperatures determined during different preparations, such as (550 °C 815 °C) size (non-sifted, smaller than 50 µm 100...

At present, we are still feeling the effects of COVID-19 pandemic in connection with huge amount waste generated. However, reuse produced other processes requires energy consumption. This article deals face masks FFP2, which were added as an admixture to spruce or beech sawdust and then processed into pellets. During production process pellets, consumption was measured further converted one ton also reflected price electricity. After storage, mechanical durability dimensions individual...

Abstract Particulate matter capture is a necessary concern for safeguarding human health and quality of life. This article focuses on enhancing particulate efficiency via electrostatic precipitation. It deals with expanding the fundamental principle single electrode in chimney tubular precipitator to configuration multi-tubular precipitation chambers aim increasing collection area consequently overall separator. The velocity distribution flue gases was observed through Computational fluid...

Abstract The quality of workplace lighting is significant consequence to the well-being and productivity employees. This study examines influence diverse modalities on employee satisfaction performance within an intelligent building. In building, three primary modes are used: daylighting, constant illuminance, power lighting. A survey was conducted with objective assessing perceptions conditions held by findings suggest that majority respondents expressed overall quality, particularly when...

This paper discusses about intelligent buildings and design of our own simple control system that will communicate with multiple actuators sensors over Ethernet to evaluate the measured values. The consist three devices based on Arduino development boards Quido ETH 4/4 board. can be used processes in buildings.

This paper deals with hardware and software design of Power quality analyzer, which is capable measuring in both three-phase one-phase power lines. The designed device can be used for the educational purposes field electrical energy quality. It contains also description individual parts proposed analyzer (i.e. software) parameters. estimation network.

This document discusses about photovoltaic system which is based on an Arduino Mega 2560 microcontroller board. System has several functions, like measurement, controlling, user interface and external monitoring PC with some another function, that are described in this paper. uses MPPT DC/DC converter, pure sine wave single phase inverter, measuring probes, switching relays controller board display.

For countries with limited access to conventional hydrocarbon gases, methane hydrates have emerged as a potential energy source. In view of the European Union’s requirements reduce intensity technological processes and increase security, it appears promising accumulate natural gas biomethane in form hydrate structures release them if necessary. Storing this an energy-efficient manner creates interest developing innovating technologies area. Hydrates that pipelines are generated by more or...

This paper presents the issue of control units used for tuning Petersen coil. Utilization specific algorithm is given by certain application assumptions. Generally, it possible to say that all algorithms can contribute reducing fault current size. The size different depending on adverse effects and used. also influences time needed determine tuned state, i.e. state with smallest current. simulation models are created algorithms. results characteristics presenting coil in case earth distance...

This paper describes the issues of housing developments' influence on voltage quality in distribution point. Main focus is connection possibilities planned developments with specific suggestions. Further, measured objects and daily load existing are evaluated by detailed analysis. Measured values were used to create simulation model. The model was created Matlab - Simulink. find out all consequences current harmonics

This article describes impact of light sources to accuracy the intelligent metering system. The contains electronics converters and ballasts. These devices generate harmonics distribution grid they have measurement. It is verification measurement with using a programmable source witch can harmonics. There are two approaches how measure error: first one according an amplitude law. second real were measured network power analyser.

This article contains information on the impact of retrofitted lighting system operation accuracy an intelligent measurement system. These systems include circuits with semiconductors and electronic converters (AC / DC) they generate nonharmonic current by their operation. has effect other devices that are connected to common connection point. One these is Intelligent The describes procedure for verifying basic data were obtained from power quality selected types (dimming, switching). Based...

Nowadays, there is a lot of pressure to adopt environmentally friendly energy sources like natural renewable energy. However, its instability and dependency on variety factors make their application challenge. With the deployment new technological systems, this unpredictability can be eliminated utilization maximized. This article discusses possibility using an artificially network predict heat generation in photovoltaic power plant. A Matlab script that creates simple neural serves as...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Nikola Čajová Kantová, Alexander Čaja, Zuzana Kolková, Pavol Belány, Peter Hrabovský; The properties of wood pellets formed from biowaste. AIP Conf. Proc. 14 February 2023; 2672 (1): 030004. https://doi.org/10.1063/5.0120823 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...