An integral mathematical model of liquid feed passive DMFCs with non-isothermal effects and charge conservation phenomenon

An integral mathematical model of liquid feed passive DMFCs with non-isothermal effects and... Passive direct methanol fuel cells (DMFCs) are quite attractive for a wide variety of portable applications but the commercialization of the passive DMFCs is hindered due to lack of knowledge regarding the behaviour of various design parameters. Therefore, a simple numerical model is required to understand the complex processes involved in passive DMFCs. In this study; a steady state, one dimensional, non-isothermal model is presented to simulate the operation of liquid feed passive DMFC. The model is analyzed considering the heat and mass transfer effects, along with the phenomenon of electrochemical reactions to predict molar concentration of various species, temperature profiles, and losses due to methanol and water crossovers. The model also considers the mixed potential and methanol concentrations profile across the cathode catalyst layer (CCL). In addition, the overpotential profile across the CCL is predicted with different current densities utilizing the charge conservation in the CCL. This extension serves to illustrate the comprehensiveness and elegance with which a simple 1-D model can be employed to predict the performance and design aspects of practical significance for passive DMFC. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cleaner Production Elsevier

An integral mathematical model of liquid feed passive DMFCs with non-isothermal effects and charge conservation phenomenon

Loading next page...
 
/lp/elsevier/an-integral-mathematical-model-of-liquid-feed-passive-dmfcs-with-non-Bvz0ZG04o2
Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Ltd
ISSN
0959-6526
D.O.I.
10.1016/j.jclepro.2018.01.177
Publisher site
See Article on Publisher Site

Abstract

Passive direct methanol fuel cells (DMFCs) are quite attractive for a wide variety of portable applications but the commercialization of the passive DMFCs is hindered due to lack of knowledge regarding the behaviour of various design parameters. Therefore, a simple numerical model is required to understand the complex processes involved in passive DMFCs. In this study; a steady state, one dimensional, non-isothermal model is presented to simulate the operation of liquid feed passive DMFC. The model is analyzed considering the heat and mass transfer effects, along with the phenomenon of electrochemical reactions to predict molar concentration of various species, temperature profiles, and losses due to methanol and water crossovers. The model also considers the mixed potential and methanol concentrations profile across the cathode catalyst layer (CCL). In addition, the overpotential profile across the CCL is predicted with different current densities utilizing the charge conservation in the CCL. This extension serves to illustrate the comprehensiveness and elegance with which a simple 1-D model can be employed to predict the performance and design aspects of practical significance for passive DMFC.

Journal

Journal of Cleaner ProductionElsevier

Published: May 1, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial