Wyniki wyszukiwania dla: INTERMITTENT ENERGY SOURCES

• Renewable Energy Sources on the Polish Electrical Energy Market

  Publikacja

  • P. Bućko

  - Acta Energetica - Rok 2014

  Production of electricity from renewable energu sources in Poland is presented in the paper.The machanism of energy origin certifikates market and the proposal of mechanism modification are discused.

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• Storing energy from renewable sources

  Publikacja

  • W. Lewandowski

  - Rinok Instalacij. Tieplotiechnika Santiechnika Gazopostaczania - Rok 2006

  Omówiono metody, urządzenia i sposoby magazynowania energii mechanicznej, elektrycznej, cieplnej i chemicznej z uwzględnieniem energii ze źródeł odnawialnych.

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• The regional energy transformation in the context of renewable energy sources potential

  Publikacja

  • B. Igliński
  • U. Kiełkowska
  • M. B. Pietrzak
  • M. Skrzatek
  • G. Kumar
  • G. Piechota

  - RENEWABLE ENERGY - Rok 2023

  The topics addressed in the article concern the problem of exploiting the potential of renewable energy sources (RES) at the regional level and the problem of the course of regional energy transition processes. Throughout the world, energy transition proceeds in a specific way for each country, due to the different potential of the selected RES and political, institutional and socio-economic conditions. Energy transition processes...

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• Simulation of the Dynamics of Renewable Energy Sources with Energy Storage Systems

  Publikacja

  • R. Małkowski
  • P. Bućko
  • M. Jaskólski
  • W. Pawlicki
  • A. Lenarczyk

  - Rok 2018

  The intermittency of renewable energy sources (RES) constitutes a challenge for effective power system control. Fossil-fuel-based units offering ancillary power services to meet the short-term power imbalance are a financial and environmental burden for the society. Energy storage systems (ESS) can be the solution in view of the electricity market development and growing environmental concern. The major questions are, in what circumstances...

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• ENERGY STORAGE IN COMPRESSED AIR – SOLUTION SUPPORTING RENEWABLE ENERGY SOURCES

  Publikacja

  • D. Jakowski
  • M. Dzida

  - Journal of Polish CIMEEAC - Rok 2014

  This article presents a brief description of a power system, the current national power system daily load, the use of wind power as a renewable energy source and its share in the national load. It also discusses the methods for storing energy, their characteristics and possible solutions. The power storage and generation solution proposed in the article is based on the collaboration between a gas turbine and an air storage system....

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• Power and heat from renewable energy sources on energy market in Poland

  Publikacja

  • P. Bućko

  - Rok 2003

  Przedstawiono aktualne uwarunkowania rynków energii w Polsce w odniesieniu do źródeł odnawialnych. Przedstawiono perspektywy rozwojowe. Omówiono wyniki opłacalności budowy małego bloku skojarzonego opalanego słomą.

• Stirling engines powered by renewable energy sources

  Publikacja

  • J. Kropiwnicki

  - Rok 2015

  Stirling engine is a device that produces mechanical energy using heat from any source of energy, without the need of combustion of any fuel inside the device. Renewable energy sources, which are mostly low-temperature energy sources, can be used to produce mechanical and electrical energy in Stirling engines. The paper presents an overview of the existing prototype Stirling engines designed for using of low-temperature energy...

• Voltage control in a power system with renewable sources of energy

  Publikacja

  • B. Tarakan
  • S. Czapp
  • K. Dobrzyński
  • R. Zajczyk
  • M. Sarnicki

  - Rok 2019

  Intensive development of distributed generation in power systems, caused by the European Union energy policy, gives possibility for improving safety in power delivery as well as optimizing the costs of the systems functioning. In this context, distributed generation can be used for voltage control in power systems – it can be performed by the control of reactive power of each source of energy or a group of energy sources. This...

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• Residual current devices in installations with PV energy sources

  Publikacja

  • S. Czapp

  - Przegląd Elektrotechniczny - Rok 2022

  The paper presents the principles of residual current devices (RCDs) application in photovoltaic (PV) installations. Provisions of standards in this regard are commented on, in particular, attention is drawn to the lack of obligation to use of RCDs in PV installations. The issue of the shape of the earth fault current and the level of leakage currents in such installations are discussed. These factors influence the selection of...

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• A complete impedance analysis of electrochemical cells used as energy sources

  Publikacja

  • P. Ślepski
  • K. Darowicki
  • E. Janicka
  • G. Lentka

  - JOURNAL OF SOLID STATE ELECTROCHEMISTRY - Rok 2012

  A comprehensive description of impedance ofelectrochemical systems has been presented, along withthe assumptions of the method used. In this method, amultisinusoidal current excitation signal is used. Thechanges of potential of both the electrodes and thepotential difference between these electrodes are allregistered simultaneously as a function of time. Theproposed method offers the possibility of separatelydetermining the instantaneous...

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• Alternative sources of energy from agricultural biomass - an European perspective

  Publikacja

  • P. Kowalik

  - Rok 2011

  Nośniki energii pochodzące z rolnictwa dzielą się na nośniki pierwotne oraz nośniki wtórne. Nośniki pierwotne to drewno, słoma oraz osady ściekowe (analogiczne do torfu niskiego). Nośniki wtórne to biogaz, bioetanol, biodiesel, biowodór oraz gaz pirolityczny. Omawia się zasoby energetyczne biomasy w Unii Europejskiej.

• Efficiency of Biomass Energy used for Heating Purposes in a Residential Building in Comparison with other Energy Sources

  Publikacja

  • G. Redlarski
  • J. Wojdalski
  • A. Kupczyk
  • J. Piechocki

  - TEKA Komisji Motoryzacji i Energetyki Rolnictwa - Rok 2012

  This paper discusses the results of analyses investigating the energy efficiency of biomass in comparison with other popular energy carriers used for heating, ventilation and water heating in residential buildings. The compared energy sources were lignite, natural gas, heating oil and electricity produced by conventional and integrated power generation plants. The most efficient variant relying on biomass and the least efficient...

• Comparison of Renewable Energy Sources in ‘New’ EU Member States in the Context of National Energy Transformations

  Publikacja

  • A. Wałachowska
  • A. Ignasiak-Szulc

  - ENERGIES - Rok 2021

  The European Union strives to create sustainable, low-carbon economies; therefore, energy policies of all member states should move towards renewable energy sources (RES). That concerns also the so-called new EU member states. These countries, on the one hand, are characterized by significant historical similarities in terms of post-communist legacy and adopted development strategies linked with the EU membership, and on the other...

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• Optimisation of cooperation of hybrid renewable energy sources with hydrogen energy storage toward the lowest net present cost

  Publikacja

  • J. Łukasik
  • M. Jewartowski
  • J. Wajs

  - Instal - Rok 2023

  The paper presents the results of a technical and economic analysis of the power supply for a model industrial facility based on intermittent renewable energy sources in the form of wind turbines and photovoltaic modules, supplemented with hydrogen energy storage. The adopted power supply strategy assumed the maximisation of self-consumption of self-produced electricity. Six variants were considered, including two with an energy...

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• Smart heating system for home extending utilization of renewable energy sources

  Publikacja

  • A. Bujnowski
  • J. Wajs
  • K. Osiński
  • M. Kaczmarek
  • M. Jewartowski
  • J. Stąsiek
  • W. Targański

  - Rok 2018

  In the paper a modern approach to smart home heating is presented. Proposed solution utilizes at least two low-polluting energy source technologies. The main idea is to connect well known ecological energy sources in a way that they can support each other and minimize risks of failure when using single system or even both of them but managed in separate way. Considered energy technologies, used separatelly, have disadvan-tages,...

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• The Application of a Multi-Criteria Decision-Making for Indication of Directions of the Development of Renewable Energy Sources in the Context of Energy Policy

  Publikacja

  • A. Lenarczyk
  • M. Jaskólski
  • P. Bućko

  - ENERGIES - Rok 2022

  This paper presents the application of multi-criteria decision-making (MCDM) for evaluating what technologies using renewable energy sources (RES) for electricity production have the chance to develop in Poland under the current socio-economic conditions. First, the Analytical Hierarchy Process (AHP) method was used to determine the weights of the optimization criteria. Five main criteria and 30 sub-criteria were identified. Next,...

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• Techno-economic assessment of cooperation of hybrid renewable energy sources with hydrogen storage

  Publikacja

  • J. Łukasik
  • M. Jewartowski
  • J. Wajs

  - Instal - Rok 2023

  The paper presents a technical and economic analysis of the power supply for a model industrial facility with the use of the most promising renewable energy sources (RES), supported by a hydrogen energy storage. This scenario was compared with the variants of supplying the facility directly from the grid and from RES without energy storage. A strategy was proposed for powering the plant aimed at maximising self-consumption of self-generated...

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• Voltage variations and their reduction in a rural low-voltage network with PV sources of energy

  Publikacja

  • A. Szultka
  • S. Szultka
  • S. Czapp
  • R. Zajczyk

  - Electronics - Rok 2021

  Renewable sources of energy (RES), especially photovoltaic (PV) micro-sources, are very popular in many countries. This way of clean power production is applied on a wide scale in Poland as well. The Polish legal regulations and tariffs specify that every prosumer in a low-voltage network may feed this network with a power not higher than the maximum declared consumed power. In power networks with RES, the voltage level changes...

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• Machine learning for the management of biochar yield and properties of biomass sources for sustainable energy

  Publikacja

  • G. V. Nguyen
  • P. Sharma
  • Ü. Ağbulut
  • H. S. Le
  • T. H. Truong
  • M. Dzida
  • M. H. Tran
  • H. C. Le
  • V. D. Tran

  - Biofuels Bioproducts & Biorefining-Biofpr - Rok 2024

  Biochar is emerging as a potential solution for biomass conversion to meet the ever increasing demand for sustainable energy. Efficient management systems are needed in order to exploit fully the potential of biochar. Modern machine learning (ML) techniques, and in particular ensemble approaches and explainable AI methods, are valuable for forecasting the properties and efficiency of biochar properly. Machine-learning-based forecasts,...

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• Hybrid Multi-Criteria Method of Analyzing the Location of Distributed Renewable Energy Sources

  Publikacja

  • A. Lenarczyk

  - ENERGIES - Rok 2020

  This paper presents the development and the application of a hybrid multi-criteria method, the combination of the Analytic Hierarchy Process (AHP), and numerical taxonomy (NT),to support the decision making on the location of distributed renewable energy sources meetingvarious types of assessment criteria. Finding criteria weights, using the AHP method, eliminates thedisadvantage of NT—which, in current form, is defined by its...

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• Examples of renewable and waste energy sources utilisation in municipal sewage treatment plants.

  Publikacja

  • E. Zaborowska

  - Rok 2004

  Tematem pracy jest problem zaopatrzenia miejskich oczysczalni ścieków w energię elektryczną i cieplną. przedstawiono dwie polskie oczyszczalnie scieków: w Żywcu i Grudziądzu jako przykłądy zastosowania odnawialnych i odpadowych źródeł energii. Zamieszczone zostały informacje na temat ilości produkowanego biogazu, źródeł energii, systemów zaopatrzenia w ciepło, w tym agregatów kogeneracyjnych i pomp ciepła. Sformułowano wnioski...

• Comprehensive modernization of local heating system using cogeneration and renewable energy sources

  Publikacja

  • P. Kubski

  - Rok 2006

  Przedstawiono przeprowadzoną kompleksową modernizację lokalnego systemu grzewczego z wprowadzeniem gospodarki cieplno-elektrycznej opartej na paliwie gazowym LNG, oraz z zastosowaniem odnawialnych źródeł energii w posatci energii słónecznej i geotermicznej.

• Application of renewable energy sources to drive organic Rankine cycle micro CHP

  Publikacja

  • J. Mikielewicz
  • S. Bykuć
  • D. Mikielewicz

  - Rok 2006

  Odnawialne źródła energii rzadko znajdują zastosowanie przy stawianych obecnie wymaganiach przez nowoczesne ciepłownie. Pojawiła się unikalna okazja pomocy przy wprowadzeniu na rynek elektrowni zoptymalizowanej dla tych nieużywanych i pomijanych źródeł ciepła. Organiczny obieg Rankine'a jest podobny do konwencjonalnych turbin parowych, wyjątkiem jest płyn napędzający turbinę, którym jest płyn roboczy o dużej masie cząsteczkowej....

• Conventional and Alternative Sources of Thermal Energy in the Production of Cement—An Impact on CO2 Emission

  Publikacja

  • K. Wojtacha-Rychter
  • P. Kucharski
  • A. Smolinski

  - ENERGIES - Rok 2021

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• Renewable Energy Sources in the Lubusz Voivodship (Poland). The Present Conditions and Perspectives for Development

  Publikacja

  • A. Łączak
  • A. Bazan-Krzywoszańska
  • M. Mrówczyńska
  • M. Skiba

  - Civil and Environmental Engineering Reports - Rok 2018

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• Voltage profiles improvement in a power network with PV energy sources – results of a voltage regulator implementation

  Publikacja

  • A. Szultka
  • S. Szultka
  • S. Czapp
  • R. Karolak
  • M. Andrzejewski
  • J. Kapitaniak
  • M. Kulling
  • J. Bonk

  - ENERGIES - Rok 2022

  The constant increase in the number of photovoltaic (PV) energy sources in distribution networks is the cause of serious voltage problems. The networks built at least a dozen years ago are not provided for the installation of a large number of micro-sources. It happens that the previously properly functioning power networks are not able to provide to consumers power with the required parameters, after installing many PV sources....

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• INCREASING POWER SUPPLY SAFETY IN THE ASPECT OF SUPPORTING THE RENEWABLE ENERGY SOURCES BY CONVENTIONAL AND VIRTUAL POWER STORES

  Publikacja

  • D. Jakowski
  • M. Dzida

  - Polish Maritime Research - Rok 2018

  This paper presents characteristics and purposefulness of supporting the renewable energy sources (OZE) by means of energy stores. The main emphasis was placed on analysis of virtual energy stores available for implementation in Polish economy conditions. A role which management of Demand Side Response (DSR) may play in balancing Polish electric power system, is discussed. Implementation of such solutions together with conventional...

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• Analysis of electricity generation variability in 2019 with special consideration of electrical energy generation from wind sources.

  Publikacja

  • S. Kruk-Gotzman
  • P. Ziółkowski
  • J. Badur

  - Rok 2020

  This article presents issues related to the broadly understood development of wind energy. The state of the art of wind energy in the world has been discussed. This paper also shows issues related to factors affecting the development of renewable energy sources and their impact on the natural environment on the basis of available research. The focus is, however, on the critical analysis of phenomena in the data of the Transmission...

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• MARKAL LONG-TERM POWER GENERATION SCENARIOS FOR POLAND: INCREASING THE SHARE OF RENEWABLE ENERGY SOURCES BY 2040

  Publikacja

  • M. Jaskólski
  • P. Bućko

  - Rok 2015

  In this paper, renewable energy sources (RES) support mechanisms in Poland was presented with perspectives of proposed support system modifications, discussed in the project of Renewable Energy Act. In addition, MARKAL model of RES support mechanism was presented, taking into account technology-specific multiplication factors. Two model runs with emission trading system in place and two additional runs without emission trade were...

• MARKAL long-term power generation scenarios for Poland: Increasing the share of renewable energy sources by 2040

  Publikacja

  • M. Jaskólski
  • P. Bućko

  - Rynek Energii - Rok 2015

  In this paper, renewable energy sources (RES) support mechanisms in Poland was presented with perspec-tives of proposed support system modifications, discussed in the project of Renewable Energy Act. In ad-dition, MARKAL model of RES support mechanism was presented, taking into account technology-specific multiplication factors. Two model runs with emission trading system in place and two additional runs without emission trade...

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• Reducing Air Pollutant Emissions from the Residential Sector by Switching to Alternative Energy Sources in Single-Family Homes

  Publikacja

  • G. Redlarski
  • J. Piechocki
  • M. A. Dąbkowski

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Rok 2013

  The paper discusses a scenario for adapting residential buildings to the requirements of the EU climate and energy package. It analyzes the option of reducing pollutant emissions to ambient air by switching to alternative energy sources in a typical single-family residential building. The most common sources of energy in central heating and ventilation systems and water heating systems were compared, and the analyzed energy carriers...

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• Large scale complementary solar and wind energy sources coupled with pumped-storage hydroelectricity for Lower Silesia (Poland)

  Publikacja

  • J. Jurasz
  • P. Dąbek
  • B. Kaźmierczak
  • A. Kies
  • M. Wdowikowski

  - ENERGY - Rok 2018

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• Review of Methods for Diagnosing the Degradation Process in Power Units Cooperating with Renewable Energy Sources Using Artificial Intelligence

  Publikacja

  • P. Ziółkowski
  • M. Drosińska-Komor
  • J. Głuch
  • Ł. Breńkacz

  - ENERGIES - Rok 2023

  This work is based on a literature review (191). It mainly refers to two diagnostic methods based on artificial intelligence. This review presents new possibilities for using genetic algorithms (GAs) for diagnostic purposes in power plants transitioning to cooperation with renewable energy sources (RESs). The genetic method is rarely used directly in the modeling of thermal-flow analysis. However, this assignment proves that the...

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• Predicting the Purchase of Electricity Prices for Renewable Energy Sources Based on Polish Power Grids Data Using Deep Learning Models for Controlling Small Hybrid PV Microinstallations

  Publikacja

  • M. Pikus
  • J. Wąs

  - Rok 2023

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• Relevance of the EU Structural Funds’ Allocation to the Needs of Combating Air Pollution in Poland. Analysis of the Operational Programmes of Regions Threatened With Critical Air Pollution from Distributed Energy Sources

  Publikacja

  • M. Włodarski
  • J. Martyniuk-Pęczek

  - Rok 2017

  Recent years, the European Environmental Agency, has been reporting air quality parameters in Poland, as the poorest among all the EU countries. Despite of adoption of the EU legislation on energy efficiency and energy performance of buildings, existing legal solutions occur insufficient in reducing air pollution in Polish regions. Lack of an effective schemes supporting complex thermal renovation of buildings, exchange of inefficient...

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• Scrutiny of power grids by penetrating PV energy in wind farms: a case study of the wind corridor of Jhampir, Pakistan

  Publikacja

  • A. M. Soomar
  • L. Guanghua
  • S. Shaikh
  • S. H. H. Shah
  • P. Musznicki

  - Frontiers in Energy Research - Rok 2023

  This study examines the problems caused by intermittent renewable energy sources, especially wind farms, and suggests a different solar energy penetration strategy to improve their loading capacity. The study uses real-time data from a wind farm in Jhampir, Pakistan, to analyse and assess various aspects of grid stations connected to wind farms. Electrical Transient Analyzer Program is used to validate the results by linking these...

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• Scrutiny of power grids by penetrating PV energy in wind farms: a case study of the wind corridor of Jhampir, Pakistan

  Publikacja

  • A. M. Soomar
  • P. Musznicki

  - Frontiers in Energy Research - Rok 2023

  This study examines the problems caused by intermittent renewable energy sources, especially wind farms, and suggests a different solar energy penetration strategy to improve their loading capacity. The study uses real-time data from a wind farm in Jhampir, Pakistan, to analyse and assess various aspects of grid stations connected to wind farms. Electrical Transient Analyzer Program is used to validate the results by linking...

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• Delivery of Ancillary Services in Distribution Power Systems

  Publikacja

  • P. Bućko
  • M. Jaskólski
  • Z. Lubośny
  • J. Klucznik
  • K. Dobrzyński

  - Rok 2018

  One of the technical and organizational challenges the power system faces in deregulated market conditions is to organize an ancillary services market. The growing share of distributed generation of variable (intermittent) energy sources and a change in the market position of consumers, causes the demand for distributed delivery of ancillary services. For this purpose, it is sought to use the ability of the regulatory measures:...

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• Consideration of Pseudo Strain Energy in Determination of Fatigue Life and Microdamage Healing of Asphalt Mastics

  Publikacja

  • D. Ryś
  • C. Szydłowski

  - INTERNATIONAL JOURNAL OF FATIGUE - Rok 2024

  Rest periods between cyclic loads can lead to recovery of damage and extension of fatigue life. This phenomenon is referred to as healing. Healing is clearly observed in bituminous materials, such as asphalt mastics, which belong to the components of asphalt mixtures. Due to the nature of road pavement traffic loading, which is characterized by series of intermittent pulses with rest periods, consideration of healing is necessary...

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• Achieving Efficient and Stable Deammonification at Low Temperatures—Experimental and Modeling Studies

  Publikacja

  • H. Al-Hazmi
  • X. Lu
  • D. Derwis
  • J. Majtacz
  • P. Kowal
  • J. Mąkinia

  - ENERGIES - Rok 2021

  The short-term effects of temperature on deammonification sludge were evaluated in a laboratory-scale sequencing batch reactor (SBR). Mathematical modeling was used for further evaluations of different intermittent aeration strategies for achieving high and stable deammonification performance at decreasing temperatures. As for the biomass cultivated at high temperatures (e.g., 30 C), a higher temperature dependency (the adjusted...

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• The effect of aeration mode (intermittent vs. continuous) on nutrient removal and greenhouse gas emissions in the wastewater treatment plant of Corleone (Italy)

  Publikacja

  • G. Mannina
  • P. M. B. Mofatto
  • A. Cosenza
  • D. Trapani Di
  • H. Gulhan
  • A. Mineo
  • J. Mąkinia

  - SCIENCE OF THE TOTAL ENVIRONMENT - Rok 2024

  The paper reports the results of an experimental study aimed at comparing two configurations of a full-scale wastewater treatment plant (WWTP): conventional activated sludge (CAS) and oxic-settling-anaerobic process (OSA) with intermittent aeration (IA). A comprehensive monitoring campaign was carried out to assess multiple parameters for comparing the two configurations: carbon and nutrient removal, greenhouse gas emissions, respirometric...

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• Metody doboru miejsc zainstalowania zasobników energii w sieciach elektroenergetycznych niskiego napięcia

  Publikacja

  • A. Szultka
  • S. Szultka

  - Automatyka Elektryka Zakłócenia - Rok 2016

  W związku z rosnącą liczbą źródeł odnawialnych przyłączanych do sieci niskiego napięcia (nn) jakość energii elektrycznej w tej sieci ulega pogorszeniu. Jedną z metod jej poprawiania jest instalowanie zasobników energii, tj. baterii akumulatorów, superkondensatorów czy kół zamachowych. Zasobniki energii są w stanie złagodzić dobową zmienność obciążenia, skompensować moc bierną i wyższe harmoniczne oraz zmniejszyć asymetrię obciążenia...

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• Inhibition effect of free ammonia on deammonification process under different intermittent aeration strategies in sequencing batch reactor

  Publikacja

  • H. Al-Hazmi
  • L. Xi
  • J. Majtacz
  • P. Kowal
  • J. Mąkinia

  - Rok 2017

  The deammonification process involves two steps. The first step is the partial nitrification of ammonia (NH4-N) by ammonia oxidizing bacteria (AOB) to produce nitrite (NO2-N) and the second step is the anammox process to “anaerobically” oxidize ammonia to nitrogen gas with nitrite as an electron acceptor (Lackner et al., 2014). Free ammonia (FA) plays a significant role in the stable, long-term deammonification system operation....

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• Bezpieczeństwo elektroenergetyczne dla pokoleń

  Publikacja

  • W. Kamrat
  • M. Bartosik
  • M. Każmierkowski
  • L. Włodzmierz
  • P. Maciej
  • T. Peryt
  • T. Skoczkowski
  • S. Andrzej
  • S. Adam

  - Przegląd Elektrotechniczny - Rok 2016

  W artykule przeanalizowano źródła energii pierwotnej, ich wystarczalnośći dywersyfikację w skali lokalnej i globalnej, problem dekarbonizacji polskiej elektroenergetyki na tle europejskiej polityki klimatycznej, osiągalność źródeł gazu jako efektywnego paliwa dla energetyki, polski program energetyki jądrowej, bezpieczeństwo zasilania elektrycznych systemów trakcyjnych jako strategicznej alternatywy...

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• The effects of different aeration modes on ammonia removal from sludge digester liquors in the nitritation–anammox proces

  Publikacja

  • D. Sobotka
  • K. Czerwionka
  • J. Mąkinia

  - WATER SCIENCE AND TECHNOLOGY - Rok 2015

  The aim of this study was to determine the impact of continuous and intermittent aeration on the rate of ammonia removal in the combined nitritation–anammox process. This process was run in two parallel sequencing batch reactors (SBRs), with a working volume V = 10 L, treating sludge digester liquors from the Gdansk (Poland) wastewater treatment plant (WWTP). The ammonia oxidizing bacteria were cultivated from activated sludge...

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• Regulacja napięcia w sieci nN z rozproszonymi źródłami energii

  Publikacja

  • Z. Krzemiński

  - Przegląd Elektrotechniczny - Rok 2020

  Podłączanie rozproszonych źródeł energii do sieci energetycznych niskiego napięcia powoduje powstawanie problemów zmienności i niesymetrii napięcia, zwłaszcza w przypadku dużych odległości od transformatora zasilającego. W skrajnych przypadkach zachodzi konieczność redukcji mocy generowanej przez źródło podczas oddawaniu energii do sieci. Rozwiązaniem tego problemu jest zastosowanie energoelektronicznego regulatora napięcia składającego...

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• Konstrukcje morskich farm wiatrowych – wyzywanie dla projektantów

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  • W. Tarełko

  - Przegląd Mechaniczny - Rok 2016

  Pozyskanie energii wiatru jest jednym z najbardziej obiecujących źródeł energii odnawialnej. W artykule przestawiono zagadnienia związane z rozwojem energetyki wiatrowej, w tym budową morskich farm wiatrowych. W szczególności zaś zaprezentowano podstawy energetyki wiatrowej, stan aktualny i perspektywy rozwoju morskich farm wiatrowych, elementy konstrukcyjne morskich turbin wiatrowych oraz infrastrukturę przesyłania energii na...

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• Magazynowanie energii elektrycznej i gospodarka wodorowa

  Publikacja

  • M. Bartosik
  • W. Kamrat
  • M. Każmierkowski
  • W. Lewandowski
  • P. Maciej
  • T. Peryt
  • T. Skoczkowski
  • A. Strupczewski
  • S. Adam

  - Przegląd Elektrotechniczny - Rok 2016

  W artykule dokonano przegl ą du aktualnych technologii magazynowania energii elektrycznej oraz zestawiono uzyskiwane parametry w aspekcie zastosowa ń w zasobnikach systemowych. Przedstawiono studium mo ż liwo ś ci magazynowania energii z odnawialnych ź róde ł energii (O Ź E) w zasobnikach akumulatorowych i elektrowniach szczytowo-pompowych w Polsce. Omówiono tak ż e mo ż liwo ś ci wykorzystania...

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• Comparison of the Efficiency of Deammonification under Different DO Concentrations in a Laboratory-Scale Sequencing Batch Reactor

  Publikacja

  • H. Al-Hazmi
  • Z. Yin
  • D. Derwis
  • J. Majtacz
  • J. Mąkinia

  - Water - Rok 2022

  The efficiency of deammonification depends on the cooperation of ammonium oxidizing bacteria and archaea (AOB/AOA), anaerobic ammonium oxidizing bacteria (AnAOB) and the effective suppression of nitrite oxidizing bacteria (NOB) that compete with AnAOB for nitrite (NO2 -N). One of the effective NOB suppression strategies is intermittent aeration. However, it is important to have a good understanding of the optimum dissolved oxygen...

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• On Decision-Making Strategies for Improved-Reliability Size Reduction of Microwave Passives: Intermittent Correction of Equality Constraints and Adaptive Handling of Inequality Constraints

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  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Mahrokh

  - KNOWLEDGE-BASED SYSTEMS - Rok 2022

  Design optimization of passive microwave components is an intricate process, especially if the primary objective is a reduction of the physical size of the structure. The latter has become an important design consideration for a growing number of modern applications (mobile communications, wearable/implantable devices, internet of things), where miniaturization is imperative due to a limited space allocated for the electronic circuitry....

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