Characteristics of moisture distribution and mass transfer in MPL by neutron radiography

被引：0
|
作者：
Utaka Y. [1 ]
Tasaki Y.
Waki N.
Iwasaki D.
Kubo N.
Shinohara K.
Boillat P. [2 ]
Oberholzer P. [2 ]
Scherer G.G. [2 ]
Lehmann E.H. [3 ]
机构：
[1] Division of Systems Research, Yokohama National University, Hodogaya, Yokohama-shi, Kanagawa, 240-8501
[2] Paul Scherrer Institue, Electrochemist Laboratory
[3] Paul Scherrer Institut, Spallation Neutron Source Division
来源：
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2010年 / 76卷 / 772期
关键词：
Diffusion; Gas diffusion layer; Liquid water distribution; Mass transfer; Neutron radiography; Polymer electrolyte fuel cell; Porous media;
D O I：
10.1299/kikaib.76.772_1995
中图分类号：
学科分类号：
摘要：
Mass transfer characteristics of gas diffusion layer (GDL) are closely related to cell performance in polymer electrolyte fuel cell (PEFC). It is important to illustrate the water behavior in MPL for improving cell performance in operation. Because MPL is adjacent to catalyst layer and GDL substrate, supposedly influences their liquid water behavior. The paper with MPL was evaluated as specimen GDL. The images of liquid water distribution in the GDL were taken by neutron radiography under a few experimental conditions in order to elucidate the characteristics of water behavior in MPL. The images reveal that neutron radiography can be used to analyze the water behavior in MPL as an effective tool. It is clarified ; MPL has two aspects, that is, one aspect is that the water retentivity and nature of network between MPL and paper substrate are formed under partiallysaturated condition, another is that MPL acts as hydrophobic under dry condition.
引用
收藏
页码：1995 / 2001
页数：6
相关论文
共 50 条
  • [31] Neutron radiography, a powerful method to determine time-dependent moisture distributions in concrete
    Zhang, Peng
    Wittmann, Folker H.
    Zhao, Tie-jun
    Lehmann, Eberhard H.
    Vontobel, Peter
    NUCLEAR ENGINEERING AND DESIGN, 2011, 241 (12) : 4758 - 4766
  • [32] Adaptive Neutron Radiography Correlation for Simultaneous Imaging of Moisture Transport and Deformation in Hygroscopic Materials
    S. J. Sanabria
    C. Lanvermann
    F. Michel
    D. Mannes
    P. Niemz
    Experimental Mechanics, 2015, 55 : 403 - 415
  • [33] Adaptive Neutron Radiography Correlation for Simultaneous Imaging of Moisture Transport and Deformation in Hygroscopic Materials
    Sanabria, S. J.
    Lanvermann, C.
    Michel, F.
    Mannes, D.
    Niemz, P.
    EXPERIMENTAL MECHANICS, 2015, 55 (02) : 403 - 415
  • [34] Convective heat and mass transfer and evolution of the moisture distribution in combined convection and radio frequency drying
    Poulin, A
    Dostie, M
    Proulx, P
    Kendall, J
    DRYING TECHNOLOGY, 1997, 15 (6-8) : 1893 - 1907
  • [35] Temperature and moisture distribution of cranberry during convective drying: a simultaneous heat and mass transfer solution
    Chandramohan, V. P.
    Ture, Saurabh Avinash
    Singh, Anurag
    Goyal, Mukul Kumar
    Sinha, Rishav
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2022, 147 (08) : 5101 - 5115
  • [36] Convective heat and mass transfer and evolution of the moisture distribution in combined convection and radio frequency drying
    Poulin, A
    Dostie, M
    Proulx, P
    Kendall, J
    DRYING '96, VOL A, 1996, : 195 - 204
  • [37] Temperature and moisture distribution of cranberry during convective drying: a simultaneous heat and mass transfer solution
    V. P. Chandramohan
    Saurabh Avinash Ture
    Anurag Singh
    Mukul Kumar Goyal
    Rishav Sinha
    Journal of Thermal Analysis and Calorimetry, 2022, 147 : 5101 - 5115
  • [38] Investigation of moisture phase change in porous media using neutron radiography and gravimetric analysis
    Joos, A.
    Schmitz, G.
    Muehlbauer, M. J.
    Schillinger, B.
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (23-24) : 5283 - 5288
  • [39] On the mass distribution of neutron stars in HMXBs
    van der Meer, A.
    Kaper, L.
    van Kerkwijk, M. H.
    van den Heuvel, E. P. J.
    MASSIVE STARS IN INTERACTING BINARIES, 2007, 367 : 491 - +
  • [40] In situ studies of mass transport in liquid alloys by means of neutron radiography
    Kargl, F.
    Engelhardt, M.
    Yang, F.
    Weis, H.
    Schmakat, P.
    Schillinger, B.
    Griesche, A.
    Meyer, A.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (25)
12345