Efficient Gas-to-Liquid Partition Using Gas-Flow Channels for Cell-Based Gaseous Odorant Detection

2021 ◽  
Author(s):  
Takuma Nakane ◽  
Toshihisa Osaki ◽  
Hisatoshi Mimura ◽  
Norihisa Miki ◽  
Shoji Takeuchi
Keyword(s):  
Gas Flow ◽  
Flow Channels ◽  
Gas To Liquid ◽  
Odorant Detection

Water Slug Formation and Motion in Gas Flow Channels: The Effects of Geometry, Surface Wettability, And Gravity

Langmuir ◽  
2013 ◽  
Vol 29 (31) ◽  
pp. 9918-9934 ◽  
Author(s):  
May J. Cheah ◽  
Ioannis G. Kevrekidis ◽  
Jay B. Benziger
Keyword(s):  
Gas Flow ◽  
Surface Wettability ◽  
Flow Channels

The role of the gas diffusion layer on slug formation in gas flow channels of fuel cells

2013 ◽  
Vol 38 (35) ◽  
pp. 15414-15427 ◽  
Author(s):  
Thomas Hellstern ◽  
Eric Gauthier ◽  
May Jean Cheah ◽  
Jay B. Benziger
Keyword(s):  
Fuel Cells ◽  
Diffusion Layer ◽  
Gas Flow ◽  
Gas Diffusion Layer ◽  
Gas Diffusion ◽  
Flow Channels

AC Impedance Investigation of Flooding in Micro Flow Channels for Fuel Cells

2004 ◽  
Author(s):  
Suk Won Cha ◽  
Ryan O’Hayre ◽  
F. B. Prinz
Keyword(s):  
Fuel Cell ◽  
Gas Flow ◽  
Ac Impedance ◽  
Transfer Resistance ◽  
Flow Channels ◽  
Direct Fabrication ◽  
Micro Channels ◽  
Impedance Technique ◽  
Micro Flow ◽  
The Impact

The paper presents a study on the transport phenomena related to gas flow through fuel cell micro-channels, specifically the impact of dimensional scale on the order of 100 microns and below. The use of structural photopolymer (SU-8) enabled the direct fabrication of functional fuel cell micro-channels. Previous experimental observation has revealed that if flow channels are too small, they may reduce the performance of fuel due to flooding (Cha et al., 2003). For further investigation, AC Impedance technique has been employed to measure the mass transfer resistance. The result confirmed that in smaller channels, mass transportation resistance increases due to the flooding.

Water Slug to Drop and Film Transitions in Gas-Flow Channels

Langmuir ◽  
2013 ◽  
Vol 29 (48) ◽  
pp. 15122-15136 ◽  
Author(s):  
May Jean Cheah ◽  
Ioannis G. Kevrekidis ◽  
Jay B. Benziger
Keyword(s):  
Gas Flow ◽  
Flow Channels

Modeling a Two-Phase Control-Oriented Transient Model of a Single PEM Fuel Cell

2010 ◽  
Author(s):  
Jinglin He ◽  
Song-Yul Choe
Keyword(s):  
Fuel Cell ◽  
Liquid Water ◽  
Gas Flow ◽  
Pem Fuel Cell ◽  
Gas Diffusion ◽  
Water Dynamics ◽  
Two Phase ◽  
Transient Model ◽  
Flow Channels ◽  
Water Amount

This paper proposed a 1D non-isothermal control-oriented transient model of PEM fuel cell unit considering the two-phase water dynamics in gas flow channel, gas diffusion layer, catalyst layer and membrane. It is known that the accumulated liquid water in the gas flow channels can block the transport path in the gas diffusion layer for the reactant gases and degrade the performance of the fuel cell, while the proper water amount in the gas flow channels and other layers can help to maintain high proton conductivity in the membrane. The I-V curve and the change of gas concentrations, liquid water amount and temperature at specific operating conditions are obtained by sweeping the current of fuel cell. The voltage, gas concentration, temperature and water dynamic changes are investigated by applying the step change of the load current. The fuel cell performance affected by temperature and water dynamics is studied by the analysis of the simulation result.

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