scholarly journals Measurement of Water Distribution in through-plane Direction in a PEFC using a Neutron Image Intensifier

2013 ◽  
Vol 43 ◽  
pp. 288-293 ◽  
Author(s):  
K. Sugimoto ◽  
H. Murakawa ◽  
K. Miyata ◽  
H. Asano ◽  
N. Takenaka ◽  
...  
Keyword(s):  
Water Distribution ◽  
Image Intensifier ◽  
Plane Direction ◽  
Neutron Image

Three-Dimensional Visualization of Water Behavior in Polymer Electrolyte Fuel Cell by Using Neutron Radiography

2011 ◽  
Author(s):  
Michinori Hashimoto ◽  
Hideki Murakawa ◽  
Katsumi Sugimoto ◽  
Hitoshi Asano ◽  
Nobuyuki Takenaka ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Neutron Radiography ◽  
Three Dimensional ◽  
Image Intensifier ◽  
Polymer Electrolyte Fuel Cell ◽  
Reconstruction Method ◽  
Ct Reconstruction ◽  
Water Behavior ◽  
Neutron Image

Visualization of dynamic three-dimensional water behavior in a PEFC stack was carried out by neutron CT using a neutron image intensifier for clarifying water effects on performances of a Polymer Electrolyte Fuel Cell (PEFC) stack. Neutron radiography system at JRR-3 in Japan Atomic Energy Agency was used. An operating stack with three cells based on Japan Automobile Research Institute standard was visualized. A consecutive CT reconstruction method by rotating the fuel stack continuously was developed by using a neutron image intensifier and a C-MOS high speed video camera. The dynamic water behavior in channels in the operating PEFC stack was clearly visualized 15 sec in interval by the developed dynamic neutron CT system. From the CT reconstructed images, evaluation of water amount in each cell was carried out. It was shown that the water distribution in each cell was correlated well with power generation characteristics in each cell.

An Improved Neutron Image Intensifier Tube

1967 ◽  
Vol 14 (1) ◽  
pp. 428-432
Author(s):  
Harold Berger ◽  
Paul Dolon ◽  
Wilfrid F. Niklas
Keyword(s):  
Image Intensifier ◽  
Neutron Image

Neutron Image Intensifier Tubes

1983 ◽  
pp. 601-607 ◽  
Author(s):  
M. Verat ◽  
H. Rougeot ◽  
B. Driard
Keyword(s):  
Image Intensifier ◽  
Neutron Image

ICOPE-15-1041 Visualization of water distribution in an operating PEFC in the through-plane direction

2015 ◽  
Vol 2015.12 (0) ◽  
pp. _ICOPE-15--_ICOPE-15-
Author(s):  
Masataka SAWADA ◽  
Masataka NISHIZAKI ◽  
Hideki MURAKAWA ◽  
Katsumi SUGIMOTO ◽  
Hitoshi ASANO ◽  
...  
Keyword(s):  
Water Distribution ◽  
Plane Direction

Analysis of Mass Transport Loss in PEMFC Induced by Rib/Channel Geometry

2011 ◽  
Author(s):  
Yuichiro Tabuchi ◽  
Takeshi Shiomi ◽  
Yosuke Fukuyama ◽  
Osamu Aoki ◽  
Norio Kubo ◽  
...  
Keyword(s):  
Current Density ◽  
Liquid Water ◽  
Water Distribution ◽  
Electrochemical Reaction ◽  
High Current Density ◽  
Cell Performance ◽  
Ohmic Loss ◽  
High Current ◽  
Numerical Validation ◽  
Plane Direction

Key challenges to the acceptance of Polymer Electrolyte Membrane Fuel Cells (PEMFCs) for automobiles are the cost reduction and its improvement in power density for compactness. In order to get the solutions for these issues, further improvement in the cell performance is required with high current density operation. In this study, the impacts of heat and water transport on the cell performance under high current density were investigated by experimental evaluation of liquid water distribution and numerical validation. Liquid water distribution in-plane direction was evaluated by neutron radiography. Furthermore, electrochemical reaction distribution was also evaluated by using inserted metal wires at anode, and then the experimental results were qualitatively validated by the numerical model. The experimental and numerical validation results revealed that significant increase in mass and ohmic loss was induced by temperature, liquid water, and electrochemical reaction distribution in-plane direction.

scholarly journals Visualization of Water Behavior in the In-plane and Throughplane Directions in a PEFC using a Neutron Image Intensifier

2013 ◽  
Vol 43 ◽  
pp. 277-281 ◽  
Author(s):  
H. Murakawa ◽  
K. Sugimoto ◽  
K. Miyata ◽  
H. Asano ◽  
N. Takenaka ◽  
...  
Keyword(s):  
Image Intensifier ◽  
Water Behavior ◽  
Neutron Image

Neutron image intensifier

1971 ◽  
Vol 4 (1) ◽  
pp. 17-17
Author(s):  
OFFICEOFINDUSTRIALCOOPERATION
Keyword(s):  
Image Intensifier ◽  
Neutron Image

Performance and calibration of a neutron image intensifier tube based real-time radiography system

2005 ◽  
Vol 52 (1) ◽  
pp. 349-355 ◽  
Author(s):  
M.R. Deinert ◽  
C.W. Lowe ◽  
J.-Y. Parlange ◽  
K. Unlu ◽  
K.B. Cady
Keyword(s):  
Real Time ◽  
Image Intensifier ◽  
Radiography System ◽  
Neutron Image
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