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1
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Materials Science Poland
2008 Vol. 26, No. 2 319--329
EN Co-precipitation method and hydrothermal synthesis were used to fabricate nanopowders of pure CeO2 and singly or co-doped ceria materials in the CeO2-Sm2O3-Y2O3 or CeO2-Gd2O3-Sm2O3 systems. All sintered powders and samples were found to be pure CeO2 and ceria-based solid solution of fluoritetype str[...]
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Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
2008 nr 133 245--254
EN The results of a study on structure and parameters of an SOFC-GT Hybrid System of the future for Distributed Power Generation are presented herein. The study investigates a system with an electrical power output of about 6MW, fuelled by natural gas, such as might supply a typical office building. Th[...]
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Advances in Materials Science
EN Pure CeO2, samaria doped ceria (Ce1-xSmxO2) and co-doped ceria with calcia and samaria Ce1-x(Ca0.5Sm0.5)xO2, wherein x =0.15, 0.20, 0.25, and 0.3 fine powders were prepared by the citrate method. All powders and samples sintered in the CaO-Sm2O3-CeO2 system were found to be ceria-based solid solutio[...]
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Rynek Energii
2011 nr 4 134-140
PL Obecnie jest stosowanych wiele sposobów na opisanie zjawisk zachodzących w pojedynczym tlenkowym ogniwie paliwowym (ang. Solid Oxide Fuel Cell - SOFC). Modelowanie to jest związane z interdyscy-plinarnym podejściem do zagadnienia, w którym należy opisać procesy zachodzące na powierzchniach elektrod.[...]
EN The Artificial Neural Network (ANN) can be applied to simulate an object's behaviour without an algorithmic solution merely by utilizing available experimental data. The ANN is used for modelling singular cell behaviour. The optimal network architecture is shown and commented. The error backpropagat[...]
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Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
2004 z. 23 309-314
PL Zaprezentowano koncepcję modelu ogniwa SOFC. Przedstawiono główne elementy modelu SOFC. Nowe równanie definiujqcc napięcie SOFC zostało uzyskane na podstawie nowych założeń. Równanie to można stosować zamiast równania Nernsla, Zaprezentowano wybrane charakterystyki pracy w punkcie projektowania auto[...]
EN Presentation of concept of SOFC model is given. Main elements of SOFC model and chemical reactions are presented. The new equation to define of SOFC voltage, which was obtained based on new assumptions and which can be used instead of the Nernst equation, is given. Selected performance characteristi[...]
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Polish Journal of Chemistry
2009 Vol. 83, nr 8 1437-1442
EN Crystal structure, high temperature oxygen nonstoichiometry and transport properties of two members of La1-xSrxCo1-y-zFeyNizO3-delta group of perovskite type oxides are presented. La0.6Sr0.4Co0.2Fe0.6Ni0.2O3-delta and La0.9Sr0.1Co1/3Fe1/3Ni1/3O3-delta compositions po sess high electrical conductivit[...]
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Journal of Power of Technologies
EN This work considers electronic conductance in solid oxide fuel cells and consequences of its existence. Various types of electrolyte are analyzed. The voltage characteristics of cells show differences between a theoretical maximum circuit voltage and open circuit voltage (OCV). A relationship is ass[...]
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Journal of Power of Technologies
EN The article presents a comparative analysis of the time constants of the main processes in the SOFC. The analysis was used to determine those processes most relevant to the modeling of an energy system comprising a fuel cell. The hybrid system, in addition to the fuel cell, has other devices (such a[...]
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Chemical and Process Engineering
EN Based on mathematical modelling and numerical simulations, a control strategy for a Molten Carbonate Fuel Cell Hybrid System (MCFC-HS) is presented. Adequate maps of performances with three independent parameters are shown. The independent parameters are as follows: stack current, fuel mass flow and[...]
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Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
EN Within the framework of a project between the University of Magdeburg and the Electrotechnical Institute of Wroclaw, material compositions for electrodes and electrolytes which make possible fuel cell operation at a temperature of approxomately 600°C and, moreover, have low production costs will be [...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 3 1483--1488
EN Composite cathodes contain Ba0.5Sr0.5Co0.8Fe0.2O3-σ and La0.6Sr0.4Co0.8Fe0.2O3-σ were tested in different configuration for achieving cathode of area specific resistance lower than Ba0.[...]
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Archives of Thermodynamics
EN There are many mathematical models of the singular solid oxide fuel cell (SOFC). SOFC performance modelling is related to the multiphysic processes taking places on the fuel cell surfaces. Heat transfer together with electrochemical reactions, mass and charge transport are conducted inside the cell.[...]
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Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1207--1212
EN In this work, a mid infrared thermography was used to study thermal behavior of solid oxide fuel cell (SOFC) with a circular shape and a diameter of 90 mm. The emissivity of the anodic surface of the fuel cell was determined to be from 0.95 to 0.46 in the temperature range 550-1200 K and the profile[...]
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Pomiary Automatyka Kontrola
2008 R. 54, nr 3 110-113
PL W pracy opisano metody pomiarowe elektrochemii ciała stałego używane do badania właściwości tlenkowych ogniw paliwowych. W oparciu o prace własne oraz doniesienia literaturowe przedstawiono przykładowe wyniki badań wybranych metod elektrycznych. Wyniki prac własnych osiągnięte zostały w ramach badań[...]
EN Methods of solid state electrochemistry used for investigation of solid oxide fuel cells are presented. Appropriate examples of fuel cell characterization results based on own experience and literature data are included. The presented results were obtained in the course of research related to fabric[...]
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Nowa Elektrotechnika
2007 nr 3 (31) 16--18
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Elektronika : konstrukcje, technologie, zastosowania
PL Tlenkowe ogniwa paliwowe SOFCs (ang. Solid Oxide Fuel Cells) są obecnie bliskie komercjalizacji. Wiedza na temat mechanizmów degradacji ogniw paliwowych jest niezbędna do dalszej poprawy ich działania. Spektroskopia impedancyjna jest skutecznym narzędziem diagnostycznym. Pozwala ona na wskazanie któ[...]
EN Solid Oxide Fuel Cells (SOFCs) are close to commercialization and knowledge about degradation mechanism become a vital step for their further improvement. A powerful diagnosis tool is impedance spectroscopy (IS). The IS allows indicating the degrading element of the SOFC and may provide knowledge ab[...]
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Archives of Thermodynamics
EN Based on mathematical modelling and numerical simulations, the control strategy for a Solid Oxide Fuel Cell Hybrid System (SOFC-HS) is presented. Adequate maps of performances with three independent parameters are shown. These independent parameters are as follows: stack current, fuel mass flow and [...]
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Archives of Thermodynamics
EN Analysis of various biogases as fuels for Solid Oxide Fuel Cells (SOFC) is presented. The results are compared with Natural Gas (NG) as a reference fuel. The biogases are characterized by both lower efficiency and lower fuel utilization factors in comparison with NG. The presented results are based [...]
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Przemysł Chemiczny
2012 T. 91, nr 9 1813-1815
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Acta Energetica
2016 nr 2 20--27
PL Artykuł napisano na podstawie rozprawy doktorskiej autorki pt. „Właściwości strukturalne i transportowe kompozytów tytanianu strontu z tlenkami przewodzącymi jonowo”, przygotowaną pod nadzorem prof. dr. hab. inż. Bogusława Kusza w Katedrze Fizyki Ciała Stałego Politechniki Gdańskiej. Prezentuje on i[...]
EN This paper has been written based on the author’s doctoral dissertation “Structural and transportation properties of strontium and titanate composites with ion conductive oxides”, prepared under the supervision of Prof. Dr. Hab. Eng. Bogusław Kusz at the Department of Solid State Physics of Gdańsk U[...]
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