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Wyświetlanie 1-10 z 156
Tytuł:
Characteristics of fuel cells under static and dynamic conditions
Autorzy:
Szwajca, Filip
Berger, Andrew W.
Spalletta, Robert
Pielecha, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/32101706.pdf
Data publikacji:
2022-12-28
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
fuel cell stack
fuel cell module
static and dynamic characteristics
fuel cell efficiency
Opis:
Modern internal combustion powertrains are the main source of propulsion for on-road and non-road vehicles. However, they are increasingly being replaced by electric or fuel cell-equipped alternative propulsion systems. The article presents a study of fuel cell characteristics operating under both static and dynamic conditions, with a 1.2 kW fuel cell set with a voltage converter and lead-acid batteries. In the conducted tests, the fuel cell stack's maximum efficiency reached 65%. Load tests (static and dynamic) have indicated higher fuel cell efficiencies when using hybrid operation with a DC/DC converter and battery.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2022, 3-4; 44-52
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application PEM fuel cells in distributed generation
Autorzy:
Ceran, B.
Bernstein, P. A.
Powiązania:
https://bibliotekanauki.pl/articles/377532.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
PEM fuel cell
distributed generation
electrolysis
Opis:
In this article the laboratory stand for testing the cooperation of three energy sources has been presented. The aspects of the use of PEM cells in distributed generation have been studied. The measurement results of parallel cooperation of the fuel cell with wind turbine and photovoltaic cell have been presented.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2014, 79; 157-163
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Affecting the Performance of Double Chamber Microbial Fuel Cell for Simultaneous Wastewater Treatment and Power Generation
Autorzy:
Khan, M.R.
Amin, M.S.A.
Rahman, M.T.
Akbar, F.
Ferdaus, K.
Powiązania:
https://bibliotekanauki.pl/articles/779340.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
catholyte
COD
Microbial Fuel Cell
wastewater treatment
Opis:
Electricity generation from the readily biodegradable organic substrate (glucose) accompanied by decolorization of azo dye was investigated using a two-chamber microbial fuel cell (MFC). Batch experiments were conducted to study the effect of dye and substrate concentration on MFC performance. Electricity generation was not signifi cantly affected by the azo dye at 300 mg/L, while higher concentrations inhibited electricity generation. The chemical oxygen demand (COD) removal and decolorization of dye containing wastewater used in the MFC were studied at optimum operation conditions in anode and cathode, 57% COD removal and 70% dye removal were achieved. This study also demonstrated the effect of different catholyte solutions, such as KMnO4 and K2Cr2O7 on electricity generation. As a result, KMnO4 solution showed the maximum electricity generation due to its higher standard reduction potential.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 1; 7-11
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application PEM fuel cells in virtual power plant
Autorzy:
Ceran, B.
Bernstein, P. A.
Powiązania:
https://bibliotekanauki.pl/articles/97409.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
fuel cell
virtual power plant
distributed generation
Opis:
In this article the laboratory stand for testing the cooperation of three energy sources has been presented. The aspects of the use of PEM cells in virtual power plant have been studied. The measurement results of parallel cooperation of the fuel cell with wind turbine and photovoltaic cell have been presented.
Źródło:
Computer Applications in Electrical Engineering; 2014, 12; 475-483
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protonic Ceramic Fuel Cells as novel electrochemical devices
Autorzy:
Winiarz, Piotr
Mielewczyk-Gryń, Aleksandra
Wachowski, Sebastian
Gazda, Maria
Powiązania:
https://bibliotekanauki.pl/articles/1179561.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Electrical energy demand
fuel cell
protonic conductors
Opis:
Proton ceramic conductors are novel materials which are interesting from the application point of view. For example, Protonic Ceramic Fuel Cells (PCFCs) is a type of a solid oxide fuel cell, which uses proton ceramic conductors as an electrolyte. Scientists are looking for the most efficient materials for these devices. In recent years main focus has been put on the search for new proton and mixed proton-electron conductors which could be applied as electrolytes or electrodes.
Źródło:
World Scientific News; 2017, 75; 56-63
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feasibility study for a fuel cell-powered unmanned aerial vehicle with a 75 kg payload
Autorzy:
Desantes, José M.
Novella, Ricardo
García-Cuevas, Luis M.
Lopez-Juarez, Marcos
Powiązania:
https://bibliotekanauki.pl/articles/36455727.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
Unmanned Aerial Vehicle
fuel cell
hydrogen
optimization
Opis:
Among the possible electric powerplants currently driving low-payload UAVs (up to around 10 kg of payload), batteries offer certain clear benefits, but for medium-payload operation such as aerotaxis and heavy-cargo transportation UAVs, battery capacity requirements restrict their usage due to high weight and volume. In light of this situation, fuel cell (FC) systems (FCS) offer clear benefits over batteries for the medium-payload UAV segment (> 50 kg). Nevertheless, studies regarding the application of FCS powerplants to this UAV segment are limited and the in-flight performance has not been clearly analysed. In order to address this knowledge gap, a feasibility analysis of these particular applications powered by FCS is performed in this study. A validated FC stack model (40 kW of maximum power) was integrated into a balance of plant to conform an FCS. As a novelty, the management of the FCS was optimized to maximize the FCS efficiency at different altitudes up to 12500 ft, so that the operation always implies the lowest H2 consumption regardless of the altitude. In parallel, an UAV numerical model was developed based on the ATLANTE vehicle and characterized by calculating the aerodynamic coefficients through CFD simulations. Then, both models were integrated into a 0D-1D modelling platform together with an energy management strategy optimizer algorithm and a suitable propeller model. With the preliminary results obtained from the FCS and UAV models, it was possible to ascertain the range and endurance of the vehicle. As a result, it was concluded that the combination of both technologies could offer a range over 600 km and an endurance over 5 h. Finally, with the integrated UAV-FCS model, a flight profile describing a medium altitude, medium endurance mission was designed and used to analyse the viability of FC-powered UAV. The results showed how UAVs powered by FCS are viable for the considered aircraft segment, providing competitive values of specific range and endurance.
Źródło:
Transactions on Aerospace Research; 2022, 2 (267); 13-30
0509-6669
2545-2835
Pojawia się w:
Transactions on Aerospace Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adoption of Modern Hydrogen Technologies in Rail Transport
Autorzy:
Stobnicki, Paweł
Gallas, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/2068465.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
exhaust emission
hydrogen fuel
fuel cell
rail transport
hydrail
Opis:
Many new zero-emission propulsion technologies are being developed today due to the need to reduce the atmospheric carbon dioxide emissions. The impact of the transport sector on the environment drives a need for innovation, including innovation in the rail transport sector specifically. At the TRAKO fair of rail vehicles the newest technological solutions have been presented. These new vehicles are expected to take over the rail transport sector in the coming decades. Many of the presented solutions and prototypes focused on using hydrogen as fuel for a system of hydrogen fuel cells, which are then used to produce the electricity needed to drive the vehicle. The development of hydrogen fuel technologies in vehicle drives in recent years allowed for a set of new solutions to appear for all types of rail vehicles and applications. Hydrogen powered rail vehicles for transporting cargo, passengers, and shunting vehicles have been shown. This article provides a discussion of the newest hydrogen solutions and vehicles sent to the market. It was determined that the adoption of such solutions will be mainly restricted by the relative cost of the hydrogen fuel rather than the vehicles or fuel cell technologies themselves. The cost of hydrogen production, when powered by renewable Energy sources to enable reduced carbon dioxide emissions, would need to be reduced to at least $2.50 /kg of fuel in order to satisfy the requirements for widespread adoption.
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 84--91
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electricity Generation & Other Applications using Microbial Fuel Cell
Autorzy:
Bose, Amarnath
Bose, Debajyoti
Powiązania:
https://bibliotekanauki.pl/articles/1192994.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Electricity Generation
microbial fuel cell
organics
power
soil
Opis:
A Microbial Fuel Cell is a device where the bacteria can grow on one electrode, they breakdown organic matter and release electrons from it. The bacteria can do this by keeping them separate from the oxygen, and when they release those electrons it creates a potential between the two electrodes of about half a volt and voltage times current is power, and that is how power is generated from it. But MFCs are not restricted to generating power they can also be used to produce biofuels. Process can also be used to extract hydrogen and methane using appropriate membrane between the anode and cathode. Given paper explores this spectrum of scenarios and speculates the possibility of generating power using the Himalayan top soil.
Źródło:
World Scientific News; 2016, 39; 17-30
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electricity Generation From Swine Wastewater Using Microbial Fuel Cell
Autorzy:
Ogugbue, C. J.
Ebode, E. E.
Leera, S.
Powiązania:
https://bibliotekanauki.pl/articles/125423.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
microbial fuel cell
electricity generation
swine wastewater
bacteria
Opis:
Electricity generation from swine wastewater using microbial fuel cell (MFC) was investigated Swine wastewater was collected into a dual-chambered (aerobic and anaerobic) fuel cell. The maximum power output using copper and carbon electrodes were 250.54 and 52.33 μW, respectively, while 10.0 and 5.0 cm salt bridge length between the cathode and anode gave maximum power outputs of 279.50 and 355.26 μW, respectively. Cathodic potassium permanganate and distilled water gave maximum power outputs of 1287.8 and 139.18 μW, respectively. MFCs utilized microbial communities to degrade organic materials found within wastewater and converted stored chemical energy to electrical energy in a single step. The initial bacterial and fungal counts were 7.4×106 and 1.1×103 CFU ml-1. Bacterial counts steadily increased with time to 1.40×107 CFU ml-1 while fungal count declined to 4.4×106 CFU ml-1 after day 60. The decline in microbial counts may be attributed to the time necessary for acclimatization of microbes to the anode. The genera identified were Bacillus, Citrobacter, Pseudomonas, Lactobacillus, Escherichia coli, Aspergillus and Rhizopus. These microbes acted as primary and secondary utilizers, utilizing carbon and other organics of the wastewater. Chemical parameters indicated that the biochemical oxygen demand decreased from 91.4–23.2 mg/L, giving 75% while the chemical oxygen demand ranged from 243.1–235.2 mg/L, representing 3.3% reduction. Although, the metabolic activities of microbes were responsible for the observed degradation, leading to electricity, the overall power output depended on the distance between the anode and cathode ompartments, types of electrode materials and mediators and oxygen reaction at the cathode.
Źródło:
Journal of Ecological Engineering; 2015, 16, 5; 26-33
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Węglowe ogniwa paliwowe – wybrane inicjatywy krajowe
Direct carbon fuel cells – selected domestic activities
Autorzy:
Dudek, M.
Tomczyk, P.
Lis, B.
Mordarski, G.
Powiązania:
https://bibliotekanauki.pl/articles/282248.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
paliwo węglowe
ogniwo paliwowe
elektrochemiczne utlenianie węgla
fuel cell
direct carbon fuel cell
DCFC
electromechanical oxidation of carbon
Opis:
Jednym z priorytetów polityki energetycznej Unii Europejskiej jest ograniczenie emisji CO2, pochodzącej z sektora energetycznego. Aby sprostać temu wyzwaniu w Polsce, której energetyka opiera się głównie na elektrowniach spalających węgiel kamienny i brunatny, należy już dzisiaj podjąć odpowiednie przeciwdziałania. Do takich przeciwdziałań należy –między innymi – zwiększenie efektywności wytwarzania energii elektrycznej z paliw kopalnych i wykorzystanie możliwości sekwestracji CO2. W ostatnich latach obserwuje się szybki rozwój ogniw paliwowych z bezpośrednim utlenianiem węgla – są one efektywnymi generatorami elektryczności, a strumień wytwarzanych w nich gazów wylotowych zawiera, niewymagający wzbogacania, stężony CO2. W artykule przedstawiono zasadę działania węglowych ogniw paliwowych, ich zalety i wady w stosunku do ogniw paliwowych wodorowo- tlenowych, a także osiągnięty przez nie poziom technologiczny. Przedstawiono również dokonania dwóch ośrodków w Polsce zaangażowanych w rozwój tej technologii: Akademii Górniczo-Hutniczej i Instytutu Katalizy i Fizykochemii Powierzchni PAN im. Jerzego Habera w Krakowie.
EU energy policy has given high priority to the reduction of CO2 emissions, first and foremost the emissions from the power industry. To meet this challenge, especially in Poland where the power industry is based on hard and brown coal power plants, adequate countermeasures should be undertaken as soon as possible. One possible approach is to increase the efficiency of electricity production from fossil fuels, together with the employment of CO2 sequestration. Recently, there has been vigorous development in the area of direct carbon fuel cells, effective generators of electricity whose single byproduct of operation is concentrated CO2. This paper describes the fundamentals of operation of direct carbon fuel cells, their advantages and disadvantages in comparison to hydrogen-oxygen fuel cells, as well as their technological status. The analysis also reviews the achievements of two research centres in Krakow, Poland which are involved in the development of this technology, the AGH – University of Science and Technology and the Jerzy Haber Institute of Catalysis and Surface Chemistry of the Polish Academy of Sciences.
Źródło:
Polityka Energetyczna; 2014, 17, 2; 81-91
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 156

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