Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/15665

Título:	Experimental characterization and identification of the voltage losses in an open cathode PEM fuel cell stack
Autor/a:	Husar, Attila Peter; Strahl, Stephan; Riera, Jordi (Riera Colomer)
Otros autores:	Institut de Robòtica i Informàtica Industrial; Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia
Abstract:	For the past 20 years remarkable progress has been made in PEM fuel cell materials, component design, production, and system power density im-provements. However, there is still a lot to be done in the field of fuel cell system control, which makes it essential to understand the different physical phenomena within a working fuel cell and how they need to be controlled in order to improve efficiency, operating range and durability. This experimental study analyses the effects of ambient conditions, through the use of an environmental chamber, on a Horizon® H-100 20 cell stack, 22cm2 active area, open cathode, where the only active control mech-anism employed is a single fan that both, cools and provides the oxygen needed for the reaction. All the other control mechanisms are disconnected and a constant dry pure hydrogen flow rate of 1.8 SLPM is supplied to the stack. The objective is to isolate and determine the dif-ferent voltage losses with respect to the ambient conditions and currents.
Materia(s):	-Àrees temàtiques de la UPC::Informàtica::Automàtica i control -Control theory -power generation control PARAULES AUTOR: exchange current density -charge transfer coefficient -ohmic losses -impedance -Control, Teoria de -Classificació INSPEC::Control theory::Optimal control::Fuel optimal control
Derechos:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipo de documento:	Artículo - Versión presentada Objeto de conferencia
Compartir:

Mostrar el registro completo del ítem