A numerical model for estimation of water droplet size in the anode channel of a proton exchange membrane fuel cell

2019 ◽  
Vol 26 ◽  
pp. 101021 ◽  
Author(s):  
Kazem Mohammadzadeh ◽  
Bahare Jahani Kaldehi ◽  
Ramin Jazmi ◽  
Hassan Khaleghi ◽  
Reza Maddahian ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Numerical Model ◽  
Droplet Size ◽  
Water Droplet ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Exchange Membrane

Water droplet dynamics in a dead-end anode proton exchange membrane fuel cell

2019 ◽  
Vol 233-234 ◽  
pp. 300-311 ◽  
Author(s):  
Asif Soopee ◽  
Agus P. Sasmito ◽  
Tariq Shamim
Keyword(s):  
Fuel Cell ◽  
Water Droplet ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Droplet Dynamics ◽  
Dead End ◽  
Exchange Membrane

scholarly journals Water droplet accumulation and motion in PEM (Proton Exchange Membrane) fuel cell mini-channels

Energy ◽  
2012 ◽  
Vol 39 (1) ◽  
pp. 63-73 ◽  
Author(s):  
J.G. Carton ◽  
V. Lawlor ◽  
A.G. Olabi ◽  
C. Hochenauer ◽  
G. Zauner
Keyword(s):  
Fuel Cell ◽  
Water Droplet ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Mini Channels ◽  
Exchange Membrane

Multiscale Numerical Model for Contact Resistance Prediction in the Proton Exchange Membrane Fuel Cell

2017 ◽  
Vol 80 (8) ◽  
pp. 73-85 ◽  
Author(s):  
Diankai Qiu ◽  
Linfa Peng ◽  
Peiyun Yi ◽  
Xinmin Lai ◽  
Holger Janßen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Numerical Model ◽  
Contact Resistance ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Resistance Prediction ◽  
Exchange Membrane

In-Plane Temperature Measurement and Water Droplet Detection of a Proton Exchange Membrane Fuel Cell Using Phosphor Thermometry: Initial Development

2010 ◽  
Author(s):  
Kristopher Inman ◽  
Xia Wang ◽  
Brian Sangeorzan
Keyword(s):  
Fuel Cell ◽  
Water Droplet ◽  
Proton Exchange Membrane ◽  
Pem Fuel Cell ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Phosphor Thermometry ◽  
Exchange Membrane

Thermal behavior inside fuel cells plays a significant role in fuel cell performance and durability. Internal temperatures of a proton exchange membrane (PEM) fuel cell govern the ionic conductivities of the polymer electrolyte, influence the reaction rate at the electrodes, and control the water vapor pressure inside the cell. Temperature gradients also influence mass transport due to phase-change-induced flow and thermo-osmosis. Many techniques developed for studying in situ temperatures such as thermocouples sensors either disrupt fuel cell performance or carry unknown accuracy. The objectives of this research are to design and construct thermal sensors based on the principles of the lifetime-decay method of phosphor thermometry to measure temperatures of cathode gas diffusion layer inside a PEM fuel cell with minimal invasion. The sensors also demonstrate the possibility of detecting water droplet formation in the flow channels qualitatively making it possible to experimentally relate local temperature distribution with liquid water formation. Further development is required in order to increase the accuracy and utility of the sensors before conclusive testing can be performed.

1D + 3D two-phase flow numerical model of a proton exchange membrane fuel cell

2017 ◽  
Vol 203 ◽  
pp. 474-495 ◽  
Author(s):  
Rui B. Ferreira ◽  
D.S. Falcão ◽  
V.B. Oliveira ◽  
A.M.F.R. Pinto
Keyword(s):  
Fuel Cell ◽  
Numerical Model ◽  
Proton Exchange Membrane ◽  
Two Phase Flow ◽  
Proton Exchange ◽  
Phase Flow ◽  
Two Phase ◽  
Exchange Membrane

Study of Water Droplet Removal on Etched-Metal Surfaces for Proton Exchange Membrane Fuel Cell Flow Channel

2016 ◽  
Vol 13 (1) ◽  
Author(s):  
S. Shimpalee ◽  
V. Lilavivat
Keyword(s):  
Surface Roughness ◽  
Contact Angle ◽  
Stainless Steel ◽  
Fuel Cell ◽  
Liquid Water ◽  
Water Droplet ◽  
Proton Exchange Membrane ◽  
Flow Channel ◽  
Proton Exchange ◽  
Exchange Membrane

Within a proton exchange membrane fuel cell (PEMFC), the transport route of liquid water begins at the cathode catalyst layer, and then progresses into the gas diffusion layer (GDL) where it then goes into the flow channel. At times, significant accumulation of liquid droplets can be seen on either side of the membrane on the surface of the flow channel. In this work, liquid water and the flow dynamics within the transport channel were examined experimentally, with the channel acting as an optical window. Ex situ interpretations of the liquid water and flow patterns inside the channel were established. Liquid water droplet movements were analyzed by considering the change of the contact angle with different flow rates. Also, various surface roughness of stainless steel was used to determine the relationships between flow rate and the contact angles. When liquid water is found within the gas channels of PEMFCs, the channels' characteristic changes become more dominant and it becomes more of a necessity to monitor the effects. Physical motion of water droplets in the flow channels of PEMFCs is important. The surface roughness properties were used to describe the contact angle and the droplet removal force on the stainless steel flow channel.

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