Temat: CFD modelling - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: CFD modelling of hydrogen starvation conditions in a planar Solid Oxide Fuel Cell
Autorzy:: Pianko-Oprych, P.
Zinko, T.
Jaworski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/779053.pdf
Data publikacji:: 2017
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: planar Solid Oxide Fuel Cell
fuel starvation
current density
CFD modelling
Opis:: The aim of this study was to highlight the interest of using CFD technique as a diagnostic tool of a malfunctioning Solid Oxide Fuel Cells. Hydrogen starvation of a SOFC due to nitrogen dilution is one of the cell dysfunctions and can lead to its degradation. Identification of the starvation point allows to improve cell performance and establish the best conditions for degradation tests. To illustrate a potential of the CFD tool, several simulations of a single planar SOFC and its behaviour under hydrogen starvation were performed and analysed. The results showed that at lower cell voltage values of 0.3 and 0.5 V significant gradients in the electric current were noticed due to a local reduction in hydrogen concentration. The CFD analysis allowed defining desirable mass flow rate of hydrogen to SOFCs to avoid fuel starvation. The model constitutes a helpful tool for optimizing cell design and operational conditions.
Źródło:: Polish Journal of Chemical Technology; 2017, 19, 2; 16-25
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Modelowanie wieloskalowe systemu procesowego. Numeryczne badania wstępne
Multiscale process system modelling. Initial numerical investigations
Autorzy:: Zakrzewska, B.
Baniukiewicz, P.
Jaworski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/2071095.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: modelowanie wieloskalowe
PSE
CFD
CAPE-OPEN
multiscale modelling
Opis:: Zaprezentowano pierwsze badania numeryczne dotyczące integracji programów: do symulacji procesów (Aspen Plus) i numerycznej dynamiki płynów (Fluent). Stworzono interfejs Cape2Fluent do zarządzania przekazywaniem danych pomiędzy programami w oparciu o standardy CAPE-OPEN. W wyniku jego zastosowania możliwe było stworzenie wieloskalowego systemu procesowego, w którym kluczowy aparat modelowany jest za pomocą modelu CFD.
The first investigation stage to integrate two packages: for process simulation (Aspen Plus) and for computational fluid dynamics (Fluent) was presented. A new interface called Cape2Fluent was created for controlling data transfer between the two packages based on CAPE-OPEN standards. The application resulted in creating a multiscale process system which involved a key unit modelled by the CFD method.
Źródło:: Inżynieria i Aparatura Chemiczna; 2010, 3; 119-120
0368-0827
Pojawia się w:: Inżynieria i Aparatura Chemiczna
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: A review of the numerical studies on planar and tubular solid oxide fuel cells within four EU projects of the 7th framework programme
Autorzy:: Pianko-Oprych, P.
Jaworski, Z.
Zinko, T.
Palus, M.
Powiązania:: https://bibliotekanauki.pl/articles/185086.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Solid Oxide Fuel Cell
stack
fuel cell system
Computational Fluid Dynamics
CFD
Finite Element Method
FEM
modelling
process simulation
ogniwo paliwowe z tlenkiem stałym
system ogniw paliwowych
obliczeniowa dynamika płynów
metoda elementów skończonych
MES
modelowanie symulacje procesu
Opis:: The paper addresses the issues of quantification and understanding of Solid Oxide Fuel Cells (SOFC) based on numerical modelling carried out under four European, EU, research projects from the 7FP within the Fuel Cell and Hydrogen Joint Undertaking, FCH JU, activities. It is a short review of the main projects’ achievements. The goal was to develop numerical analyses at a single cell and stack level. This information was integrated into a system model that was capable of predicting fuel cell phenomena and their effect on the system behaviour. Numerical results were analysed and favourably compared to experimental results obtained from the project partners. At the single SOFC level, a static model of the SOFC cell was developed to calculate output voltage and current density as functions of fuel utilisation, operational pressure and temperature. At the stack level, by improving fuel cell configuration inside the stack and optimising the operation conditions, thermal stresses were decreased and the lifetime of fuel cell systems increased. At the system level, different layouts have been evaluated at the steady-state and by dynamic simulations. Results showed that increasing the operation temperature and pressure improves the overall performance, while changes of the inlet gas compositions improve fuel cell performance.
Źródło:: Chemical and Process Engineering; 2018, 39, 4; 377--393
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "CFD modelling" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język