Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

NEW NUMERICAL TECHNIQUES FOR A THREE-DIMENSIONAL LIQUID-FEED DIRECT METHANOL FUEL CELL MODEL

PENGTAO SUN, GUANGRI XUE, CHAOYANG WANG and JINCHAO XU
SIAM Journal on Applied Mathematics
Vol. 70, No. 2, Fuel Cells: Modeling, Analysis, and Computation (2009), pp. 600-620
Stable URL: http://www.jstor.org/stable/27798793
Page Count: 21
  • Subscribe ($19.50)
  • Cite this Item
NEW NUMERICAL TECHNIQUES FOR A THREE-DIMENSIONAL LIQUID-FEED DIRECT METHANOL FUEL CELL MODEL
Preview not available

Abstract

In this paper, a three-dimensional two-phase transport model of a liquid-feed direct methanol fuel cell (DMFC) is studied, where flow, species, charge-transport, and energy equations are simultaneously addressed. Some new numerical techniques are specifically investigated in order to achieve fast and convergent numerical simulation. An updated source term of the water transport equation based on a combination of physical and numerical considerations, and a series of efficient numerical algorithms and discretizations by means of a combined finite element–upwind finite volume method, are designed and analyzed to assist in approaching this target. The three-dimensional numerical simulations demonstrate that the convergent physical solutions can be obtained within hundreds of steps, in contrast to the long-running and even nonconvergent nonlinear iterations operated by standard finite element/volume methods if no new numerical technique is adopted.

Page Thumbnails

  • Thumbnail: Page 
600
    600
  • Thumbnail: Page 
601
    601
  • Thumbnail: Page 
602
    602
  • Thumbnail: Page 
603
    603
  • Thumbnail: Page 
604
    604
  • Thumbnail: Page 
605
    605
  • Thumbnail: Page 
606
    606
  • Thumbnail: Page 
607
    607
  • Thumbnail: Page 
608
    608
  • Thumbnail: Page 
609
    609
  • Thumbnail: Page 
610
    610
  • Thumbnail: Page 
611
    611
  • Thumbnail: Page 
612
    612
  • Thumbnail: Page 
613
    613
  • Thumbnail: Page 
614
    614
  • Thumbnail: Page 
615
    615
  • Thumbnail: Page 
616
    616
  • Thumbnail: Page 
617
    617
  • Thumbnail: Page 
618
    618
  • Thumbnail: Page 
619
    619
  • Thumbnail: Page 
620
    620