ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Interfacial Phenomena and Heat Transfer
ESCI

ISSN 印刷: 2169-2785
ISSN オンライン: 2167-857X

Open Access

Interfacial Phenomena and Heat Transfer

DOI: 10.1615/InterfacPhenomHeatTransfer.2018024381
pages 337-349

VISUAL OBSERVATION OF TWO-PHASE FLOW IN INTERDIGITATED CHANNELS OF A DIRECT METHANOL FUEL CELL

Fang Ye
MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Jie Lin Jia
MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
Hang Guo
MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
Chong Fang Ma
MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China

要約

A liquid-feed direct methanol fuel cell (DMFC) is considered a promising choice of next-generation primary or auxiliary power devices. In this study, a DMFC with a transparent window was designed to investigate the two-phase flow phenomenon in anode interdigitated channels. With the aid of visualization technology, the effect of the two-phase flow behaviors coupled with chemical reactions on the performance of the DMFC under different current densities, methanol flow rates, and cell temperatures was studied. Results indicated the gradual increase in the number and size of bubbles with the increase of current density. High methanol flow rate could promote the movement of the gas bubbles. Fine bubble flow was the typical two-phase flow in outlet channels, and slug flow exists in outlet manifold. Gas quality, average bubble size, and gas columns increased with cell temperature. Moreover, the performance of the DMFC was promoted. Cell temperature had a significant effect on cell performance. By contrast, the effect of mass transfer deterioration caused by the CO2 bubbles could be ignored.


Articles with similar content:

GAS–LIQUID TWO-PHASE FLOW IN PARALLEL CHANNELS OF A DIRECT METHANOL FUEL CELL
Interfacial Phenomena and Heat Transfer, Vol.5, 2017, issue 4
Fang Ye, Jie Lin Jia, Chong Fang Ma, Hang Guo
TWO-PHASE FLOW IN ANODE INTERDIGITAL FLOW BED OF A LIQUID FED DIRECT METHANOL FUEL CELL
International Heat Transfer Conference 13, Vol.0, 2006, issue
Jie Lin Jia, Fang Ye, J. Kong, Chong Fang Ma, Hang Guo
PREFACE: COMPUTATIONAL POROMECHANICS
International Journal for Multiscale Computational Engineering, Vol.14, 2016, issue 4
WaiChing Sun
MODELING, SIMULATION, AND CONTROL FOR A CONTINUOUS FLOW POROUS MEDIA BURNER
Journal of Porous Media, Vol.16, 2013, issue 2
Valeri Bubnovich, Pablo Donoso-Garcia, Luis Henriquez-Vargas, F. Cubillos
CO2 ABSORPTION/REGENERATION PERFORMANCE ENHANCEMENT BY NANOABSORBENTS
International Heat Transfer Conference 16, Vol.2, 2018, issue
Seonggon Kim, Yong Tae Kang