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Wyświetlanie 1-15 z 547
Tytuł:
Renewable energy power plants
Elektrownie wykorzystujące energię odnawialną
Autorzy:
Sobolewski, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/27312739.pdf
Data publikacji:
2023
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
energy
environmental protection
Opis:
The opinion presents the regulatory conditions related to the launch of installations using renewable energy sources, including wind and photovoltaic installations. The conditions related to obtaining permits in the investment process and environmental requirements were analysed, such as the need to conduct an environmental impact assessment. Progress in the transposition into national law of the requirements of Directive 2018/2001/EU (REDII Directive) was assessed.
Źródło:
Zeszyty Prawnicze BAS; 2023, 3(79); 169-178
1896-9852
2082-064X
Pojawia się w:
Zeszyty Prawnicze BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability evaluation of renewable energy-based power system containing energy storage
Autorzy:
Ghaeedi, A.
Noroozi, E.
Powiązania:
https://bibliotekanauki.pl/articles/103047.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
reliability evaluation
renewable resources
vanadium redox batteries
fuzzy clustering method
Opis:
In recent years, renewable energy based power plants, especially wind and solar farms are increasingly installed and operated for electric power generation. Uncertainty nature associated to the generated power of these power plants, arisen from variability of wind speed or solar radiation, effects on different aspects of power system such as reliability, operation, dynamic and so on. Energy storages in connection with renewable power plants can reduce the variability and uncertainty nature of these renewable resources. In recent years the flow batteries such as vanadium redox (VR) with large capacities are developed and so in this paper effect of this largecapacity energy storages on the reliability performance of power system containing large-scale wind and photovoltaic (PV) farms are investigated. The renewable energy-based power plants and also energy storages are different from conventional units, so, for study of power system containing these resources new methods and techniques must be developed. To this end in this paper for reliability evaluation of renewable-energy based power system containing energy storage, an analytical approach is proposed. This approach can be employed both in planning and also operation studies of the power system when large scale wind and photovoltaic farms with energy storages exist. Data associated to wind speed of Manjil and solar radiation of Jask regions both in Iran are utilized for studying the reliability evaluation of RBTS and also IEEERTS in planning phase.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 198-205
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Storage of wind power energy
Autorzy:
Tywoniuk, Andrzej
Skorupka, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/242948.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
energy storage
wind energy
renewable energy
energy storage method
Opis:
There has been a big increase in production and investments in wind turbines and wind farms in last 20 years. New generation of wind turbines is more reliable than from 1980’s are, which necessary condition is energy production is to play an important role among renewable energy sources. Over the last 30 years, the size of wind turbines increased 7 times, as nominal power increased nearly 14 times. At present, turbines capable of producing over 10 MW of power are being developed. The main reason for continued growth of turbines sizes is to minimize the energy cost per kilowatt-hour. However, it is worth remembering that according to the „square-cube law”, there is a maximum size after the surpassing of witch the cost of ever-larger turbines would grow faster than financial gain from the increased size. In this article, authors present energy storage methods and devices for wind power plants and cost-effectiveness of the individual energy storage methods. Authors also present data about energy storage efficiency and groups of energy storage devices for wind power plants such as: compressed-air power stations + gas turbine (CAES), utilizing underground wells, pumped storage power plants, rechargeable batteries (lithium-ion, lead-acid, sodium sulphur, VRB, zinc-flow, zinc-air, zinc-air), flywheels, hydrogen production and storage systems, superconducting magnetic energy storage (SMES), electrostatic storage – electrolytic capacitors.
Źródło:
Journal of KONES; 2019, 26, 4; 257-264
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy storage systems: power grid and energy market use cases
Autorzy:
Komarnicki, P.
Powiązania:
https://bibliotekanauki.pl/articles/141507.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
storage technologies
storage system sizing
storage system operation
storage system management
storage system use case scenarios
storage system integration
Opis:
Current power grid and market development, characterized by large growth of distributed energy sources in recent years, especially in Europa, are according energy storage systems an increasingly larger field of implementation. Existing storage technologies, e.g. pumped-storage power plants, have to be upgraded and extended by new but not yet commercially viable technologies (e.g. batteries or adiabatic compressed air energy storage) that meet expected demands. Optimal sizing of storage systems and technically and economically optimal operating strategies are the major challenges to the integration of such systems in the future smart grid. This paper surveys firstly the literature on the latest niche applications. Then, potential new use case and operating scenarios for energy storage systems in smart grids, which have been field tested, are presented and discussed and subsequently assessed technically and economically.
Źródło:
Archives of Electrical Engineering; 2016, 65, 3; 495-511
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation and optimization of a new energy vehicle power battery pack structure
Autorzy:
Ruan, Guanqiang
Yu, Changqing
Hu, Xing
Hua, Jing
Powiązania:
https://bibliotekanauki.pl/articles/2055057.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
static
dynamic
modal
lightweight
optimization
Opis:
With the rapid growth in new energy vehicle industry, more and more new energy vehicle battery packs catch fire or even explode due to the internal short circuit. Comparing with traditional vehicles, the new energy vehicles industry should pay more attention to safety of power battery pack structures. The battery pack is an important barrier to protect the internal batteries. A battery pack structure model is imported into ANSYS for structural optimization under sharp acceleration, sharp turn and sharp deceleration turn conditions on the bumpy road. Based on the simulation, the battery pack structure is improved, and suitable materials are determined. Then the collision resistance of the optimized battery pack is verified, and the safety level is greatly improved. While ensuring the safety and reliability of the battery pack structure, it also reduces the weight to satisfy the lightweight design and complies with relevant technical standards.
Źródło:
Journal of Theoretical and Applied Mechanics; 2021, 59, 4; 565--578
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of Solar Energy in Power Equipment
Wykorzystanie energii słonecznej w urządzeniach energetycznych
Autorzy:
Diodiu, Ioan Lucian
Dragomir, Daniel Alexandru
Matei, Aronel
Herbei, Roxana Claudia
Powiązania:
https://bibliotekanauki.pl/articles/971137.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
level CO2
solar energy
photovoltaic panels
distribution network
poziom CO₂
energia słoneczna
panele fotowoltaiczne
sieć dystrybucyjna
Opis:
A clean environment is essential for people's health and quality of life. Developing sectors that help to meet the needs and comfort, have a negative impact on the quality of the environment we live in. The use of natural resources without care to meet the needs of humans leads to the destruction of the environment. Climate change, erosion, increasing the amount of carbon dioxide in the air we breathe, are the result of meeting other needs such as food, heat, transport, comfort in our own home, etc.
Czyste środowisko jest niezbędne dla zdrowia ludzi i jakości życia. Rozwijające się sektory, które pomagają zaspokoić potrzeby i komfort, mają negatywny wpływ na jakość środowiska, w którym żyjemy. Wykorzystywanie zasobów naturalnych bez troski o potrzeby ludzi prowadzi do niszczenia środowiska. Zmiany klimatu, erozja, zwiększenie ilości dwutlenku węgla w powietrzu, którym oddychamy, są wynikiem zaspokojenia innych potrzeb, takich jak jedzenie, ciepło, transport, komfort w naszym domu.
Źródło:
Inżynieria Mineralna; 2020, 2, 1; 29-32
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The methods of solving the multiscenario model of joint balancing energy and power reserves
Autorzy:
Rogulski, M.
Powiązania:
https://bibliotekanauki.pl/articles/115712.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
linear programming
load flow analysis
power generation dispatch
power reserves
multi-scenario model
Opis:
Article concerns a joint model of balancing energy and power reserves for the energy system which takes into account power and regulation reserves. Admission a varied situations of using energy from the system power reserves causes, that characterizes this model with a vast complexity of calculation. The aim of this paper is to present practical ways to solve this problem using several proposed heuristic algorithms of reduction scenarios. Their quality was presented at the sample data.
Źródło:
Challenges of Modern Technology; 2011, 2, 1; 3-7
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on combustion mode of methanol micro-reciprocating piston internal combustion engine
Autorzy:
Tang, Gang Zhi
Wang, Shuai Bin
Zhang, Li
Shang, Hui Chao
Powiązania:
https://bibliotekanauki.pl/articles/329276.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
micro-energy power systems
combustion diagnosis
combustion model
methanol
silnik spalinowy
diagnostyka spalania
model spalania
metanol
Opis:
Constrained by the micro-space structure, it is proposed to use platinum wire incandescent ignition combustion mode to achieve the operation of internal combustion engine. However, the combustion test of the platinum wire incandescent ignition in miniature piston internal combustion engine shows: the combustion mode of micro-space platinum wire incandescent ignition has a poor combustion characteristic, low heat release rate, long combustion duration, and low combustion pressure. Therefore, a homogenous charge compression ignition mode is proposed to realize the operation of miniature internal combustion engine. However, it is found that the compression combustion cannot be come true in the cold start-up state of the micro engine. And the compression combustion in the first cycle was realized by the way of increasing the temperature of the cylinder block and platinum wire appropriately. The results show that: The maximum heat release rate is obviously improved and the combustion duration shortened by 28.6ºCA, and pmi increased by 76%. So, a novel hybrid combustion mode of in-cylinder compression combustion supported by the platinum wire incandescent ignition is put forward, through the way of adjusting the temperature of platinum wire, and this combustion mode is regarded as the ideal combustion mode of micro reciprocating piston internal combustion engine.
Źródło:
Diagnostyka; 2020, 21, 1; 97-103
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring accuracy of electric energy in HV power networks
Autorzy:
Jałmużny, W.
Powiązania:
https://bibliotekanauki.pl/articles/262655.pdf
Data publikacji:
2005
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
electric energy measuring
instrument transformers
measuring accuracy
Opis:
The article presents the effect of secondary circuits of inductive current and voltage transformers on measuring accuracy in HV power networks. The basic parameters of instrument transformers were defined, such as errors or rated output. The impedance effect of the leads connecting secondary terminals with measuring instruments and the impact of burden power on the energy measuring error were analyzed. The calculation samples illustrate the procedure when assessing energy (power) measuring error. The algorithm may be applied, with positive results, by the operating personnel of measuring circuits with instrument transformers.
Źródło:
Electrical Power Quality and Utilisation. Journal; 2005, 11, 1; 3-15
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the Possibility of Using Solar Energy to Power Selected Measuring Drives in Agriculture
Autorzy:
Kolano, J.
Stelmach, K.
Powiązania:
https://bibliotekanauki.pl/articles/125256.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
photovoltaics
inverters
electric pumping systems
computer simulation
Opis:
Mankind’s misgivings caused by the depletion of fossil fuels have accelerated research on obtaining energy from unconventional sources. One such source is the Sun. The present article reviews the possibility of using solar energy, converted in batteries of photovoltaic cells into electricity, in agriculture and farming. It should also be emphasized that it is energy friendly to the environment, whose acquisition on agricultural land, which often lacks access to the power grid, is now legitimate and profitable. This study presents the results of computer simulations in tabular and graphical form, using the PVSYST program, for a pasture water pumping system for watering grazing cattle.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 81-89
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Graphical interpretation of the power of energy losses and power developed in the hydrostatic drive and control system elements
Autorzy:
Skorek, G.
Powiązania:
https://bibliotekanauki.pl/articles/259894.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydraulic motor
energy balance
energy losses
energy efficiency
capacity pump
hydraulic servomechanism
hydrostatic drive system
Źródło:
Polish Maritime Research; 2012, 4; 44-53
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected converter topologies for interfacing energy storages with power grid
Autorzy:
Domino, A.
Zymmer, K.
Parchomiuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/201816.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
power converter
superconducting magnetic energy storage
SMES
supercapacitor energy storage
SES
distribution system
konwerter mocy
nadprzewodnikowy zasobnik energii
magazynowanie energii
superkondensator
system dystrybucji
Opis:
The paper presents different solutions applicable in power converter systems for connecting power grids with energy storage systems such as superconducting magnetic energy storage (SMES), supercapacitor energy storage (SES) or chemical batteries. Those systems are characterized by bidirectional current flow between energy storage and power grid. Two-level converters (AC-DC and DC-AC converters) dedicated for low power energy storage compatible with 3×400 V-type power grids are proposed. High power systems are connected with 3×6 kV-type power grids via transformers that adjust voltage to the particular energy storage or directly, based on multilevel power converters (AC-DC and DC-AC) or dual active bridge (DAB) systems. Solutions ensuring power grid compatibility with several energy storage systems of the same electrical parameters as well as of different voltage-current characteristics are also proposed. Selected simulation results illustrating operation of two system topologies of 200 kW power for two-level converter and neutral point clamped (NPC) three-level converter are presented.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 579-588
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ideal rectifier bridge converting the harvested energy of vibrations into electric energy to power an mr damper
Autorzy:
Sapiński, Bogdan
Jastrzębski, Łukasz
Kozieł, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/1837924.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
energy harvesting
rectifier bridge
voltage
current
MR damper
Opis:
The newly developed ideal rectifier bridge equipped with four N-type MOSFETs and two rail-to-rail operational amplifiers is a part of a typical energy harvesting conditioning circuit responsible for the rectification stage in the system of converting the energy harvested from vibrations into electrical energy to power the MR damper. The only energy loss in the bridge is caused by the voltage loss in transistors’ channels. The first sections of the work summarises the structural design of the bridge, the simulation procedure under the RL load and by sine voltage inputs with predetermined frequency and amplitude range, and benchmarks the results against those obtained for the conventional bridge based on Schottky diodes. In the second section, the PCB prototype of the bridge is analysed, and measurement data are compiled. The third section reports on the laboratory testing of the developed bridge converting the harvested energy in an MR damper-based vibration reduction system.
Źródło:
Acta Mechanica et Automatica; 2020, 14, 4; 198-205
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detailed Energy Audit of Thermal Power Plant Equipment
Autorzy:
Das, Sourabh
Mukherjee, Mainak
Mondal, Surajit
Powiązania:
https://bibliotekanauki.pl/articles/1193916.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Energy Audit
Energy Conservation
Lighting Audit
Motor Audit
Pump Audit
Thermal Power Plant
Transformer Audit
Opis:
Energy audit is a technique developed to reduce unnecessary usage of energy, control and also streamline processes leading to energy efficiency. Energy audit and its impact on a daily basis is high and hence is of good significance. Energy Conservation over the years has been a key in terms of saving excessive bills and building up unnecessary usage both domestically and industrially. The world is not completely energy efficient yet, it should be a made sure that the process to ensure optimum usage and saving wherever possible. In this paper we shall discuss in brief about energy audit in a thermal power plant, techniques and ways data are obtained. India’s strive for complete energizing is yet on the verge of completion, need for saving unused energy and also recovering waste energy can be beneficial in developing an energy content environment. The energy audit carried out in thermal power plant gives a presentation of the data and corners of collecting data.
Źródło:
World Scientific News; 2015, 22; 70-90
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Co-design of a low-power RF receiver and piezoelectric energy harvesting power supply for a Wireless Sensor Node
Autorzy:
Mancelos, N
Correia, J
Oliveira, J. P.
Oliveira, L. B.
Powiązania:
https://bibliotekanauki.pl/articles/398018.pdf
Data publikacji:
2014
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
CMOS RF analog front-end
low-voltage wideband balun LNA
passive mixer
piezoelectric energy harvesting
active full bridge rectifier
LDO regulator
układ analogowy CMOS
balun szerokopasmowy
mikser pasywny
energia piezoelektryczna
prostownik aktywny
prostownik mostkowy
regulator LDO
Opis:
A low-voltage RF CMOS receiver front-end and an energy harvesting power circuit for a piezoelectric source are presented as a co-designed solution for a Wireless Sensor Node. A MOSFET-only Wideband balun LNA with noise cancelling and a 0.6 V supply voltage is designed in conjunction with a passive mixer. The passive mixer operates in current mode, allowing a minimal introduction of voltage noise and a good linearity. The receiver front-end reaches a total voltage conversion gain of 31 dB, a 0.1-5.2 GHZ bandwidth, an IIP3 value of -1.35 dBm, and a noise figure inferior to 9 dB. The total power consumption is 1.95 mW. The energy harvesting power circuit consists of an active full bridge cross-coupled rectifier followed by a low-dropout (LDO) regulator, and it is able to guarantee a power output of 6 mW with a regulated output voltage of 0.6 V, for typical vibration patterns.
Źródło:
International Journal of Microelectronics and Computer Science; 2014, 5, 4; 136-143
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 547

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