scholarly journals In-Situ Measurement of In-Plane Temperature Distribution in a Single-Cell Polymer Electrolyte Fuel Cell Using Thermograph

2011 ◽  
Vol 6 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Akira NISHIMURA ◽  
Kenichi SHIBUYA ◽  
Atsushi MORIMOTO ◽  
Shigeki TANAKA ◽  
Masafumi HIROTA ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Temperature Distribution ◽  
Single Cell ◽  
Polymer Electrolyte ◽  
In Situ Measurement ◽  
Polymer Electrolyte Fuel Cell ◽  
Plane Temperature

scholarly journals Impact of MPL on Temperature Distribution in Single Polymer Electrolyte Fuel Cell with Various Thicknesses of Polymer Electrolyte Membrane

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2499
Author(s):  
Akira Nishimura ◽  
Tatsuya Okado ◽  
Yuya Kojima ◽  
Masafumi Hirota ◽  
Eric Hu
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Temperature Distribution ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Fuel Cell ◽  
Electrolyte Membrane ◽  
The Impact ◽  
Plane Temperature ◽  
Power Generation Performance

The impact of micro porous layer (MPL) with various thicknesses of polymer electrolyte membrane (PEM) on heat and mass transfer characteristics, as well as power generation performance of Polymer Electrolyte Fuel Cell (PEFC), is investigated. The in-plane temperature distribution on cathode separator back is also measured by thermocamera. It has been found that the power generation performance is improved by the addition of MPL, especially at higher current density condition irrespective of initial temperature of cell (Tini) and relative humidity condition. However, the improvement is not obvious when the thin PEM (Nafion NRE-211; thickness of 25 μm) is used. The increase in temperature from inlet to outlet without MPL is large compared to that with MPL when using thick PEM, while the difference between without MPL and with MPL is small when using thin PEM. It has been confirmed that the addition of MPL is effective for the improvement of power generation performance of single PEFC operated at higher temperatures than normal. However, the in-plane temperature distribution with MPL is not even.

In Situ Temperature Distribution Measurement in an Operating Polymer Electrolyte Fuel Cell

2003 ◽  
Author(s):  
Matthew M. Mench ◽  
Daniel J. Burford ◽  
Tyler W. Davis
Keyword(s):  
Fuel Cell ◽  
Temperature Distribution ◽  
Polymer Electrolyte ◽  
Membrane Electrode Assembly ◽  
Polymer Electrolyte Fuel Cell ◽  
Membrane Electrode ◽  
Two Phase ◽  
Temperature Distribution Measurement ◽  
Current Densities

The temperature distribution in a polymer electrolyte fuel cell (PEFC) is of critical importance to the water balance, as well as to other kinetic and transport phenomena that are known to be functionally dependent on temperature. However, direct measurement of localized temperature is difficult, due to the two-phase nature of flow in the gas channels and the small through-plane dimensions of a typical electrolyte. To circumvent these difficulties, an array of microthermocouples was embedded directly between two 25 μm thick Nation™ electrolyte sheets of a membrane electrode assembly. The embedded array was used to measure electrolyte temperature as a function of current and fuel cell flow channel location. For the fuel cell tested with natural convective cooling, a temperature increase in the electrolyte of as much as 15°C is observed for current densities of 1 A/cm2.

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