Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "energy management" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 221
Tytuł:
Locomotive kinetic energy management
Autorzy:
Liudvinavicius, L.
Lingaitis, L.
Powiązania:
https://bibliotekanauki.pl/articles/374285.pdf
Data publikacji:
2011
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
energia kinetyczna lokomotywy
akumulator energii
zestaw kołowy
superkondensator
locomotive kinetic energy
energy storage battery
wheel-set
supercapacitors
Opis:
The paper addresses some basic theoretical and engineering problems of electrodynamic braking, presenting methods of regenerative braking returning energy to contact network or the energy storage batteries. The paper presenting the non-traditional structural schemas of the starting of DC/DC, AC/DC, AC/AC power systems locomotives 800 kW-6000 kW diesel engines using the energy storage batteries (block of supercapacitors).
Źródło:
Transport Problems; 2011, 6, 3; 135-142
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Importance of energy management in foundries
Autorzy:
Jarża, S.
Powiązania:
https://bibliotekanauki.pl/articles/406161.pdf
Data publikacji:
2011
Wydawca:
Politechnika Częstochowska
Tematy:
emisja
środowisko
zapobieganie zanieczyszczeniom
zarządzanie energią
emission
environment
energy management
pollution prevention
Opis:
Pollution prevention is preferable to reliance on end-of-pipe pollution control. Since we look at the environment in the global sense, it is irrelevant that the emissions reductions occur at the electrical generating station rather than at the site of the efficiency improvements. In foundries as a part of an energy intensive industry, energy accounting is necessary to determine where and how energy is being consumed and how efficient is the energy management system. The main aim of energy management should define the areas of high energy use, energy waste and should point out areas in which energy saving can be accomplished. Energy management is very important as it deals with adjusting and optimizing energy, using systems and procedures so as to reduce energy requirements.
Globalne spojrzenie na problemy środowiskowe pozwala stwierdzić, że zmniejszenie emisji wynikające ze zmniejszenia zużycia energii ma miejsce w elektrowniach a nie odnosi się do miejsc gdzie bezpośrednio wprowadzane są usprawnienia. Głównym celem zarządzania energią jest określenie obszarów, w których występuje duże zużycie energii, gdzie dochodzi do dużych strat energii oraz wskazanie takich gdzie oszczędności energii będą możliwe do realizacji. Odlewnie należące do energochłonnych gałęzi przemysłu wymagają kontroli zużycia energii, aby można było określić gdzie, w jaki sposób energia jest wykorzystywana oraz jak efektywny jest system zarządzania energią. Przedstawiono niektóre aspekty zużycia energii w odlewni oraz wskazano główne obszary gdzie dochodzi do strat energii oraz możliwości wprowadzania usprawnień. Wskazano jak zarządzanie energią wpływa na kierunki i efektywność zużycia energii a procedury wynikające z tego systemu umożliwiają ograniczenie zapotrzebowania na energię.
Źródło:
Polish Journal of Management Studies; 2011, 4; 166-173
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The issue of energy management in walking machines
Autorzy:
Deda, J.
Mirosław, T.
Zawadzki, A.
Powiązania:
https://bibliotekanauki.pl/articles/248046.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
drive
walking machine
energy costs
mobile machine
linear load-sensing systems
napęd
maszyna
koszty energii
maszyna mobilna
liniowe systemy wykrywania obciążenia
Opis:
The energy management is a serious issue in the platforms of mobile robots, and especially walking robots. The solutions are sought so as to obtain the furthest possible range with the energy resources at the disposal. Properly adjusted configuration of the drives and the manner of energy management has a key impact on effectiveness of the drives. The article presents the most important features of the basic driving systems, possible configurations, and steering manners along with the assessment of their effectiveness. The article will present classical and hybrid drives. The authors present a sample analysis of energy “costs” of steering for the selected systems. The analysis will be supported with results of the simulation performed with the use of constructed computer models. The guidelines for designing of the systems for walking platforms will be proposed, enabling to obtain high dynamics and energy efficiency of the system.
Źródło:
Journal of KONES; 2018, 25, 1; 49-57
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy management strategy considering energy storage system degradation for hydrogen fuel cell ship
Autorzy:
Cao, Wei
Geng, Pan
Xu, Xiaoyan
Tarasiuk, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/32921248.pdf
Data publikacji:
2023
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hydrogen fuel cell ship
energy management
fuzzy PID
equivalent energy consumption minimum
energy storage system degradation
Opis:
A hybrid energy system (HES) including hydrogen fuel cell systems (FCS) and a lithium-ion (Li-ion) battery energy storage system (ESS) is established for hydrogen fuel cell ships to follow fast load transients. An energy management strategy (EMS) with hierarchical control is presented to achieve proper distribution of load power and enhance system stability. In the high-control loop, a power distribution mechanism based on a particle swarm optimization algorithm (PSO) with an equivalent consumption minimization strategy (ECMS) is proposed. In the low-level control loop, an adaptive fuzzy PID controller is developed, which can quickly restore the system to a stable state by adjusting the PID parameters in real time. Compared with the rule-based EMS, hydrogen consumption is reduced by 5.319%, and the stability of the power system is significantly improved. In addition, the ESS degradation model is developed to assess its state of health (SOH). The ESS capacity loss is reduced by 2% and the daily operating cost of the ship is reduced by 1.7% compared with the PSO-ECMS without considering the ESS degradation.
Źródło:
Polish Maritime Research; 2023, 2; 95-104
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Creating an Academic Program Focusing on Energy Management and Sustainability
Autorzy:
Grebski, Wes
Grebski, Michalene
Profaska, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2064319.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
academic program
engineering curriculum
sustainability
program studiów
program inżynierski
rozwój zrównoważony
Opis:
The chapter describes the process for developing a new engineering program specializing in sustainable energy and power generation: Alternative Energy and Power Generation Engineering Track. The graduates of described program will have the critical knowledge and skills needed to begin their careers in nowadays industry shaped by the global sustainability Agenda 2030. Engineers should focus on economic, social and environmental aspects of their work. Desk research method is used. Chapter is based ABET requirement (USA). Program educational objectives were developed based on the needs on industry and in close cooperation with industry. Chapter is also focusing on the development of the program outcomes as well as the curricular content. Program requirements, specific track courses and recommended course planner are provided. Some suggestions and recommendation are also included.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 323--331
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowe możliwości oszczędzania energii lokomotyw
New Locomotive Energy Management Systems
Autorzy:
Liudvinavičius, L.
Lingaitis, L. P.
Powiązania:
https://bibliotekanauki.pl/articles/301006.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
możliwości rekuperacji energii pociągów
struktura lokomotyw hybrydowych
tender
siec kontaktowa
catenary
locomotive regenerative braking possibilities
Opis:
Economic indicators of electrodynamic braking have not been properly estimated. Vehicles with alternative power trains are transitional stage between development of pollution - free vehicles. According to these aspects the investigation on conventional hybrids drives and their control system is carried out in the article. The equation that allow evaluating effectiveness of regenerative braking for different variants of hybrid drive are given. Presenting different type locomotive energy savings power systems, which are using regenerative braking energy any form of hybrid traction vehicles systems, circuit diagrams, electrical parameters curves.
W artykule zostały przeanalizowane nowe możliwości oszczędzania energii lokomotyw. Autor rozpatruje możliwości rekuperacji energii pociągów z napędem elektrycznym do sieci kontaktowej przy dużych szybkościach i gromadzenia energii przy małych szybkościach. Przedstawione są propozycje wariantów struktury lokomotyw hybrydowych z zastosowaniem tendera, w którym znajdują się baterie. Zgromadzona w tych bateriach energia może być w dalszym ciągu wykorzystana do trakcji, oświetlenia, klimatyzacji, itd. Przedstawiono schematy, diagramy, wykresy charakteryzujące możliwości rekuperacyjnego hamowania.
Źródło:
Eksploatacja i Niezawodność; 2010, 1; 35-41
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Selected Technical Soil Parameters on the Greenhouse Energy Management
Autorzy:
Nawalany, Grzegorz
Sokołowski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/125003.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
heat exchange
soil
greenhouse
energy management
soil type
Opis:
The paper is an attempt to determine the impact of soil type and its selected technical parameters on the heat exchange with soil. The test results were based on the all-year-round experimental measurements of soil temperature and indoor and outdoor air in a greenhouse located in southern Poland. The field tests results were used to validate the calculation model using the WUFIplus software. The validation showed a high degree of conformity between the experiments and calculations. Five variants were used in the calculations, differentiated by technical parameters of the soil underneath the greenhouse. The results showed a significant impact of the soil type on the greenhouse energy management.
Źródło:
Journal of Ecological Engineering; 2019, 20, 9; 245-252
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy management system of the hybrid ultracapacitor-battery electric drive vehicles
Autorzy:
Pielecha, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/1832900.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electric vehicle
battery
ultracapacitor
energy flow modeling
pojazd elektryczny
bateria
ultrakondensator
Opis:
The search for new, alternative propulsion and energy sources in transport is one of the economic and technological priorities of the current decade. The modern development of hybrid drives and electric means of transport makes it possible to at least partially diversify conventional drive systems. The study discusses the use of a battery and ultracapacitor in electric vehicles. Simulation analyzes of energy flow were performed using the solutions of electric drive systems and various energy storage control algorithms. The research was carried out in relation to the use of braking energy, its con-version into electricity and its storage in a battery or ultracapacitor. The operating conditions of the battery and the ultra-capacitor were assessed in terms of specific energy consumption while driving. The article proposed the use of a drive system connected in series, the last link of which was an ultracapacitor. Such a solution significantly reduced the use of the battery as well as its regular charging-discharging. At the same time, it required the use of a high-capacity ultracapacitor, which contributed to increasing its charging time. The analyzes were carried out using standardized research tests as well as tests in real traffic conditions. The research was carried out with the use of the AVL Cruise software for the analysis of energy flow in vehicles; a middle class passenger vehicle was selected for the tests, equipped with an electrochemical battery and – in the next stage of the research – an ultracapacitor. Three research models were used: I) typical electric drive system; II) a system with the use of ultracapacitors ran by a simple control algorithm; III) a system with the use of ultracapacitors with an advanced control algorithm (the algorithm took into account the change of driving conditions to the ultracapacitor charging conditions). The advantages of using ultracapacitors in the electric drive of a vehicle were demonstrated, especially for results obtained in real traffic conditions. Analyzing the simulation tests results allowed to determine the most advantageous options of utilizing these systems, in particular in the aspect of increased possibilities of algorithms controlling the flow of electricity in the drive system.
Źródło:
Archives of Transport; 2021, 58, 2; 47-62
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent energy management system of a smart microgrid using multiagent systems
Autorzy:
Azeroual, Mohamed
Lamhamdi, Tijani
El Moussaoui, Hassan
El Markhi, Hassane
Powiązania:
https://bibliotekanauki.pl/articles/140667.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
artificial intelligence
fault detection
microgrid
multi-agent system (MAS)
power distribution
smart grid
Opis:
The smart grid concept is predicated upon the pervasive use of advanced digital communication, information techniques, and artificial intelligence for the current power system, to be more characteristics of the real-time monitoring and controlling of the supply/demand. Microgrids are modern types of power systems used for distributed energy resource (DER) integration. However, the microgrid energy management, the control, and protection of microgrid components (energy sources, loads, and local storage units) is an important challenge. In this paper, the distributed energy management algorithm and control strategy of a smart microgrid is proposed using an intelligent multi-agent system (MAS) approach to achieve multiple objectives in real-time. The MAS proposed is developed with co-simulation tools, which the microgrid model, simulated using MATLAB/Simulink, and the MAS algorithm implemented in JADE through a middleware MACSimJX. The main study is to develop a new approach, able to communicate a multi-task environment such as MAS inside the S-function block of Simulink, to achieve the optimal energy management objectives.
Źródło:
Archives of Electrical Engineering; 2020, 69, 1; 23-38
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Short-term optimal energy management in stand-alone microgrid with battery energy storage
Autorzy:
Paliwal, N. K.
Singh, A. K.
Singh, N. K.
Powiązania:
https://bibliotekanauki.pl/articles/140998.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
artificial bee colony
battery energy storage
clean energy sources
optimal energy management
stand-alone microgrid
Opis:
The optimal energy management (OEM) in a stand-alone microgrid (SMG) is a challenging job because of uncertain and intermittent behavior of clean energy sources (CESs) such as a photovoltaic (PV), wind turbine (WT). This paper presents the effective role of battery energy storage (BES) in optimal scheduling of generation sources to fulfill the load demand in an SMG under the intermittency of theWT and PV power. The OEM is performed by minimizing the operational cost of the SMG for the chosen moderate weather profile using an artificial bee colony algorithm (ABC) in four different cases, i.e. without the BES and with the BES having a various level of initial capacity. The results show the efficient role of the BES in keeping the reliability of the SMG with the reduction in carbon-emissions and uncertainty of the CES power. Also, prove that the ABC provides better cost values compared to particle swarm optimization (PSO) and a genetic algorithm (GA). Further, the robustness of system reliability using the BES is tested for the mean data of the considered weather profile.
Źródło:
Archives of Electrical Engineering; 2018, 67, 3; 499--513
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy management strategies for hybrid electric vehicles in urban driving conditions
Autorzy:
Pielecha, I.
Cieślik, W.
Fluder, K.
Powiązania:
https://bibliotekanauki.pl/articles/134210.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid electric vehicles
energy management
electric range
real driving conditions
samochody hybrydowe
zarządzanie energią
zasięg elektryczny
rzeczywiste warunki jazdy
Opis:
The pursuit of fuel consumption reduction by vehicles leads to a sudden increase in the share of hybrid and electric drives in the vehicle market. Replacing hybrid vehicles with electric vehicles requires long-term technological solutions, both for the infrastructure and the vehicles themselves. Therefore, one of the leading types of passenger car drives is currently the hybrid drive. The generated work share of electric drives used to power hybrid vehicles is a determinant of the viability of using electric drives. The article estimates the operating time share of electric and hybrid modes operation in real driving conditions (RDC) based on the latest Toyota hybrid model. The research object was a vehicle from the crossover group equipped with a fourth generation hybrid drive. Analysis of the drive's operation allowed to determine the conditions of energy flow and determine the work share of the electric drive in the total driving time.
Źródło:
Combustion Engines; 2018, 57, 2; 14-18
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of rule-based energy management strategies for hybrid vehicles using dynamic programming
Autorzy:
Zhu, Di
Pritchard, Ewan
Dadam, Sumanth Reddy
Kumar, Vivek
Xu, Yang
Powiązania:
https://bibliotekanauki.pl/articles/2097501.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
energy management strategy
rule-based
dynamic programming
OBD
on-board diagnostics
hybrid electric vehicles
strategia zarządzania energią
systemy oparte na regułach
programowanie dynamiczne
diagnostyka pokładowa samochodu
hybrydowe pojazdy elektryczne
Opis:
Reducing energy consumption is a key focus for hybrid electric vehicle (HEV) development. The popular vehicle dynamic model used in many energy management optimization studies does not capture the vehicle dynamics that the in-vehicle measurement system does. However, feedback from the measurement system is what the vehicle controller actually uses to manage energy consumption. Therefore, the optimization solely using the model does not represent what the vehicle controller sees in the vehicle. This paper reports the utility factor-weighted energy consumption using a rule-based strategy under a real-world representative drive cycle. In addition, the vehicle test data was used to perform the optimization approach. By comparing results from both rule-based and optimization-based strategies, the areas for further improving rule-based strategy are discussed. Furthermore, recent development of OBD raises a concern about the increase of energy consumption. This paper investigates the energy consumption increase with extensive OBD usage.
Źródło:
Combustion Engines; 2021, 60, 1; 3--10
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on hybrid modeling and predictive energy management for power split hybrid electric vehicle
Autorzy:
Wang, Shaohua
Zhang, Sheng
Shi, Dehua
Sun, Xiaoqiang
Yang, Tao
Powiązania:
https://bibliotekanauki.pl/articles/2173576.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
power split HEV
energy management
mixed logical dynamical model
piecewise affine
model predictive control
podział mocy
zarządzanie energią
silnik hybrydowy
model dynamiczny
model mieszany
model logiczny
technologia fragmentarycznie pokrewna
kontrola predykcyjna modelu
Opis:
Due to the coexistence of continuity and discreteness, energy management of a multi-mode power split hybrid electric vehicle (HEV) can be considered a typical hybrid system. Therefore, the hybrid system theory is applied to investigate the optimum energy distribution strategy of a power split multi-mode HEV. In order to obtain a unified description of the continuous/discrete dynamics, including both the steady power distribution process and mode switching behaviors, mixed logical dynamical (MLD) modeling is adopted to build the control-oriented model. Moreover, linear piecewise affine (PWA) technology is applied to deal with nonlinear characteristics in MLD modeling. The MLD model is finally obtained through a high level modeling language, i.e. HYSDEL. Based on the MLD model, hybrid model predictive control (HMPC) strategy is proposed, where a mixed integer quadratic programming (MIQP) problem is constructed for optimum power distribution. Simulation studies under different driving cycles demonstrate that the proposed control strategy can have a superior control effect as compared with the rule-based control strategy.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; art. no. e137064
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on hybrid modeling and predictive energy management for power split hybrid electric vehicle
Autorzy:
Wang, Shaohua
Zhang, Sheng
Shi, Dehua
Sun, Xiaoqiang
Yang, Tao
Powiązania:
https://bibliotekanauki.pl/articles/2128153.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
power split HEV
energy management
mixed logical dynamical model
piecewise affine
model predictive control
podział mocy
zarządzanie energią
silnik hybrydowy
model dynamiczny
model mieszany
model logiczny
technologia fragmentarycznie pokrewna
kontrola predykcyjna modelu
Opis:
Due to the coexistence of continuity and discreteness, energy management of a multi-mode power split hybrid electric vehicle (HEV) can be considered a typical hybrid system. Therefore, the hybrid system theory is applied to investigate the optimum energy distribution strategy of a power split multi-mode HEV. In order to obtain a unified description of the continuous/discrete dynamics, including both the steady power distribution process and mode switching behaviors, mixed logical dynamical (MLD) modeling is adopted to build the control-oriented model. Moreover, linear piecewise affine (PWA) technology is applied to deal with nonlinear characteristics in MLD modeling. The MLD model is finally obtained through a high level modeling language, i.e. HYSDEL. Based on the MLD model, hybrid model predictive control (HMPC) strategy is proposed, where a mixed integer quadratic programming (MIQP) problem is constructed for optimum power distribution. Simulation studies under different driving cycles demonstrate that the proposed control strategy can have a superior control effect as compared with the rule-based control strategy.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; e137064, 1--15
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new system design for energy management in HVAC control systems for textile plants
Autorzy:
Imal, M.
Powiązania:
https://bibliotekanauki.pl/articles/1061605.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.05.Sv
88.05.Vx
Opis:
Good HVAC control is often the most cost-effective option to improve the energy efficiency of a factory. The effect of the control strategy and energy efficiency is usually difficult to predict. To achieve this easily, a fully automated energy saving controller system was designed for heating, ventilating and air-conditioning (HVAC) systems in textile factories. The new designed HVAC control system reduces the energy consumption by 45%. These control system can be implemented in the factories with a direct payback period approximately 4 months.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 245-248
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 221

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies