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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:23 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
2 kW power module based on fuel cells – design and dimensioning
Authors:
Kovács EDE(1,2), Szász LEHEL(1,2), Boros Tiberiu FRANCISC(1,2), Borbáth TUNDE (2), Ana Maria BONDAR(2), Borbáth ISTVAN(2)
Affiliation:
1)University of Bucharest, Faculty of Physics, Atomistilor 405, P.O 38, Bucharest-Magurele, Romania, 077125
2)S.C. ROSEAL S.A.,535600 Odorheiu Secuiesc, Str. N. Bălcescu Nr. 5/A, Jud. Harghita, România
E-mail
istarom@3nanosae.org
Keywords:
fuel cells, electrodes active area, air flow rate, power module
Abstract:
The main objectives of the research was to design and scale a 2 kW power module based on fuel cells considering the conditions established in the frame of MENER 5 research project – contract no. 21-034 / 2007 (ROSEAL Co. partner).
Thus, the capacity of 2 kW should be minimum 30 - 40 % electric energy and maximum 60% -70 % thermal energy. The battery operates at 80 ° C, in a pressure range of 1-5 bar, the fuel used is hydrogen and the oxidant is air.
Each cell in the stack work at 0.5 V nominal voltage, so the charging voltage of the battery is within the range of 3 – 8 V, while the current is between 0 – 180 A. In order to achieve these objectives in this work the fuel cells have been dimensioned by determination the necessary cells, the active area of the electrodes, by technological dimensioning of the anodes and cathods, by calculating the necessary H flow and the temperature at the outlet of the cells, the O2 flow rate, the required air flow rate, the temperature at the outlet of the cell, by determination the required water amount for humidification and by dimensioning the cooling system.
The obtained results formed the basis of the 2 kW energy module achievement - experimental model.
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