An innovative method of modeling direct methanol fuel cells
Abstract
In this paper a computer model of a direct methanol fuel cell (DMFC) developed with the use of HYSYS software was presented. Chemical reactions of methanol oxidation and oxygen reduction were executed in HYSYS software which eliminated the need of creating a complex electrochemical model of these reactions. Obtained resutls were used for determining maximum cell voltage and limiting current density of the investigated fuel cell. An equivalent electrical circuit served for calculating cell voltage after taking ohmic losses and methanol crossover losses into account. A simulation of polarization curve for a cell supplied with 0.5 mol/dm 3 methanol and pure oxygen operating at 70◦C was performed and validated with experimental data. The effects of cathode gas humiditication and methanol concentration change in the range of 0.5 mol/dm 3 –3 mol/dm 3 on cell performance were investigated. Difficulties with detremining methanol oxidation rate and methanol crossover loss correctly enfrorced the use of experimental data thus greatly limiting the range of model’s applicability. Challenges encountered during direct methanol fuel cell modeling were described.
Published
2012-01-26
How to Cite
TRENDEWICZ, Anna; MILEWSKI, Jaroslaw.
An innovative method of modeling direct methanol fuel cells.
Journal of Power Technologies, [S.l.], v. 92, n. 1, p. 20--26, jan. 2012.
ISSN 2083-4195.
Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/252>. Date accessed: 14 dec. 2024.
Issue
Section
Fuel Cells and Hydrogen
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).