Characteristics of carbon dioxide bubbles and methanol solution flow in interdigitated channels under different rotating angles

Fang Ye, Jie Lin Jia, Hang Guo, Chong Fang Ma, Dmitry V. Zaitsev, Oleg A. Kabov

Research output: Contribution to journalArticlepeer-review

Abstract

Study on mass transfer in cells under different factors is of great significance for improving the output capacity of direct methanol fuel cells. The influence of flow-field orientations on mass transfer in anode interdigitated channels of a liquid-feed direct methanol fuel cell is experimentally studied. The cell is at an angle of 30°, 60°, and 90° in the clockwise and counterclockwise direction, and characteristics of carbon dioxide bubbles and methanol solution flow are observed since the two-phase flow is directly related to the supply of reactants and discharge of products. Results show that the velocities of the carbon dioxide bubbles decrease as the channel rotates closer to the horizontal direction. The voltage decreases as the rotation angles increase.

Original languageEnglish
Pages (from-to)409-420
Number of pages12
JournalInterfacial Phenomena and Heat Transfer
Volume6
Issue number4
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • Cell orientation
  • Direct methanol fuel cell
  • Interdigitated channels
  • Two-phase flow
  • Visualization technology
  • 2-PHASE FLOW
  • PART I
  • DESIGN
  • interdigitated channels
  • PERFORMANCE
  • FIELD
  • PARALLEL CHANNELS
  • cell orientation
  • FUEL-CELL
  • two-phase flow
  • ORIENTATION
  • visualization technology
  • ANODE
  • PASSIVE DMFC
  • direct methanol fuel cell

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