New PDF release: A detailed approach to model transport, heterogeneous

By Vinod Janardhanan

ISBN-10: 3866441843

ISBN-13: 9783866441842

This ebook lays out a numerical framework for the certain description of heterogeneous chemistry, electrochemistry and porous media shipping in solid-oxide gasoline cells (SOFC). Assuming hydrogen because the in basic terms electrochemically energetic species, a transformed Butler-Volmer equation is used to version the electrochemical cost move.

Show description

Read or Download A detailed approach to model transport, heterogeneous chemistry, and electrochemistry in solid-oxide fuel cells PDF

Similar technique books

Hartmut Ehrig (auth.), Hartmut Ehrig, Werner Damm, Jörg's Integration of Software Specification Techniques for PDF

This ebook constitutes the documentation of the medical consequence of the concern application Integration of software program Specification options for functions in Engineering subsidized by way of the German study starting place (DFG). It comprises major contributions of the tasks of the concern software and of extra overseas specialists within the box.

Fundamental Concepts in Computer Science - download pdf or read online

This ebook offers primary contributions to desktop technological know-how as written and mentioned through those that made the contributions themselves. As such, it's a hugely unique method of a dwelling heritage of the sector of laptop technological know-how. The scope of the publication is huge in that it covers all elements of laptop technological know-how, going from the idea of computation, the speculation of programming, and the speculation of laptop procedure functionality, the entire method to computing device and to significant numerical purposes of pcs.

Global Warming and Climate Change: Prospects and Policies in by A. Marquina PDF

This ebook seems on the crucial effects of weather switch and its attainable influence on clash and defense. It clarifies the impression of weather switch on traditional assets, at the frequency and growth of typical mess ups, and, subsequently, the repercussions that may be foreseen on environmentally-induced migration.

Extra resources for A detailed approach to model transport, heterogeneous chemistry, and electrochemistry in solid-oxide fuel cells

Example text

Studied the C deposition effects on Ni/YSZ anodes at various YSZ dopant levels. They observed dissociative adsorption of methane (Eq. 23) and subsequent C deposition (Eq. 22) at temperatures above 780°C. [52]. Though open circuit conditions can result in detrimental C deposition at low S/C ratio, in certain cases the cell can be recovered by applying load [13]. It is worth mentioning that activity of YSZ as a reforming catalyst has also been reported in the literature [65]. Based on the study of bimetallics Lee et.

2 Fuel processing The main reason that SOFCs can run on hydrocarbons is the high temperature of operation. This high temperature is ideal for reforming reactions to produce electrochemically active synthesis gas (H2 and CO). The electrochemical activity of various chemical species is still a topic of open debate. However, there is no doubt on the electrochemical activity of H2 and CO [47, 48, 49]. Therefore, any fuel used in SOFC must be finally converted into H2 and/or CO to enable charge transfer reactions.

6) The symbols in the bracket stand for the corresponding surface to which the particular species is attached. For example H(Ni) stands for a hydrogen atom attached to Ni surface, and (Ni) represents a free Ni surface. O× (YSZ) is a lattice oxygen and V•• (YSZ) is an oxygen vacancy. The hydrogen adsorption desorption reaction also appears in the heterogeneous chemistry mechanism listed in Appendix. Although, in principle any of these reactions can be rate limiting, the work presented here follows the report of Zhu et al.

Download PDF sample

A detailed approach to model transport, heterogeneous chemistry, and electrochemistry in solid-oxide fuel cells by Vinod Janardhanan

by James

Rated 4.03 of 5 – based on 34 votes