The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A physical model that accounts for the transportation of water in both vapor and liquid phases is useful for the design of water management scheme in a proton exchange membrane fuel cell (PEMFC) system. A 1-D, two-phase PEMFC model that offers both a very short simulation time and a realistic capture of the physical behavior of PEMFC is developed. The presence of liquid water in the cathode gas diffusion...
In order to understand the humidification temperature effect on oxygen mass fraction in the cathode for the PEM(Proton Exchange Membrane) fuel cell, a model was set up by three conservation equations, and it was considered the Gravity in source item. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. It is simulation of species mass fraction...
Sustainability of the membrane conductance in PEM fuel cells is an important issue and determines the performance of the cell. Herein, the relevant numerical analysis is replaced with an optimization procedure. The objective function is energy balance equation and the equality constraints are governing equations of the physical model. In this paper a dynamic relaxation method is proposed which provides...
In PEM (Proton Exchange Membrane) Fuel Cell, a two-phase flow, multi-component model has been optimized. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered...
A direct methanol fuel cell (DMFC) with a novel double-layer structured membrane electrode assembly (MEA) was developed and a better performance was obtained. The double catalytic layer anode is composed of a hydrophilic inner catalyst layer with PtRu black and an outer catalyst layer with PtRu/C. In the double-layer structured anode, there existed a catalyst concentration gradient and porosity gradient,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.