Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.019 seconds
[en] Fuel cells are one of the most important devices to obtain electrical energy from hydrogen. The Proton Exchange Membrane Fuel Cell (PEMFC) consists of two important parts: the Membrane Electrode Assembly (MEA), where the reactions occur, and the flow field plates. The plates have many functions in a fuel cell: distribute reactant gases (hydrogen and air or oxygen), conduct electrical current, remove heat and water from the electrodes and make the cell robust. The cost of the bipolar plates corresponds up to 45% of the total stack costs. The Computational Fluid Dynamic (CFD) is a very useful tool to simulate hydrogen and oxygen gases flow channels, to reduce the costs of bipolar plates production and to optimize mass transport. Two types of flow channels were studied. The first type was a commercial plate by ELECTROCELL and the other was entirely projected at Programa de Celula a Combustivel (IPEN/CNEN-SP) and the experimental data were compared with modelling results. Optimum values for each set of variables were obtained and the models verification was carried out in order to show the feasibility of this technique to improve fuel cell efficiency. (author)
Source
Associacao Brasileira de Energia Nuclear, Rio de Janeiro, RJ (Brazil); [vp.]; ISBN 978-85-99141-02-1; 
; 2007; [6 p.]; INAC 2007 International nuclear atlantic conference. Nuclear energy and energetic challenges for 21st. century. 15. Brazilian national meeting on reactor physics and thermal hydraulics; Santos (Brazil); 30 Sep - 5 Oct 2007; 8. Brazilian national meeting on nuclear applications; Santos (Brazil); 30 Sep - 5 Oct 2007; Available from the Library of the Brazilian Nuclear Energy Commission, Rio de Janeiro, in electronic form; 6 refs., 4 figs., 1 tab. Code: R151216.pdf
; 2007; [6 p.]; INAC 2007 International nuclear atlantic conference. Nuclear energy and energetic challenges for 21st. century. 15. Brazilian national meeting on reactor physics and thermal hydraulics; Santos (Brazil); 30 Sep - 5 Oct 2007; 8. Brazilian national meeting on nuclear applications; Santos (Brazil); 30 Sep - 5 Oct 2007; Available from the Library of the Brazilian Nuclear Energy Commission, Rio de Janeiro, in electronic form; 6 refs., 4 figs., 1 tab. Code: R151216.pdf