In situ measurement of relative humidity in a PEM fuel cell using fibre Bragg grating sensors

David, Nigel; Schilling, K. Von; Wild, Peter; Djilali, Ned

doi:10.1016/j.ijhydene.2014.08.010

Cited by 23 publications

(6 citation statements)

References 25 publications

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“…As a result, the nitrogen crossover coefficient was obtained. David et al [109] mentioned that gas chromatography was used by various other authors to determine the water vapour inside the cell.…”

Section: Gas Chromatographymentioning

confidence: 99%

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

et al. 2021

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The large-scale adoption of fuel cells system for sustainable power generation will require the combined use of both multidimensional models and of dedicated testing techniques, in order to evolve the current technology beyond its present status. This requires an unprecedented understanding of concurrent and interacting fluid dynamics, material and electrochemical processes. In this review article, Polymer Electrolyte Membrane Fuel Cells (PEMFC) are analysed. In the first part, the most common approaches for multi-phase/multi-physics modelling are presented in their governing equations, inherent limitations and accurate materials characterisation for diffusion layers, membrane and catalyst layers. This provides a thorough overview of key aspects to be included in multidimensional CFD models. In the second part, advanced diagnostic techniques are surveyed, indicating testing practices to accurately characterise the cell operation. These can be used to validate models, complementing the conventional observation of the current–voltage curve with key operating parameters, thus defining a joint modelling/testing environment. The two sections complement each other in portraying a unified framework of interrelated physical/chemical processes, laying the foundation of a robust and complete understanding of PEMFC. This is needed to advance the current technology and to consciously use the ever-growing availability of computational resources in the next future.

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Section: Gas Chromatographymentioning

confidence: 99%

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

et al. 2021

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“…The in-lab developed physical sensors can be classified as insertion models and embedment models. The insertion models, which are inserted into PEMFC from fuel inlet and outlet channels of bipolar flow plate, are always based on the optical fiber technique, for example, Fiber Bragg Grating (FBG) based sensors [59,60]. Pei et al [63], Ali et al [68], and Tang et al [69] also developed novel thermocouples to study thermal distributions within fuel cell stacks.…”

Section: Commercialized Liquid Mass Flow M Etermentioning

confidence: 99%

Sensor development and optimization for a proton exchange membrane fuel cell system in automotive applications

Wang

Morando

Gaillard

et al. 2021

Journal of Power Sources

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“…G. Hinds et al (12) investigated humidity measurement in the anode and the cathode channel by using commercial sensors. N. David et al (13) measured the relative humidity (RH) at the rib and the channel with the fiber Bragg grating (FBG) sensor. K. Nishida et al (15) quantitatively evaluated the water vapor distribution along the anode flow channel by the humidity test paper.…”

Section: Introductionmentioning

confidence: 99%

“…Lee et al (17) conducted insitu temperature, humidity, current and flow measurements simultaneously with developing micro sensors of 40 µm thickness, although these sensors were too thick to insert between PEMFC materials. These humidity measurements (12)(13)(14)(15)(16)(17)(18)(19) were only conducted in the channel or the GDL/separator interface. J. Gazzarri et al (20) estimated RH on the cathode CL based on impedance methods under different experimental conditions, however, the measurement results were only average humidity value on the cathode CL.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Through-Plane Humidity Distribution inside an MEA by Thin Film Sensor

Minami

Hasegawa

Araki³

2017

ECS Trans.

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Measuring local humidity inside a proton exchange membrane fuel cell is essential for proper water management because water condition is closely related to the cell performance. Thin film humidity sensors (TFHSs) were fabricated by the micro-electromechanical system techniques for measuring local humidity inside a membrane electrode assembly. The width of the TFHS was only 100 µm and total thickness was 7 µm, which is thinner than the thickness of a catalyst layer (CL). The sensor was placed between the CL and the micro porous layer. Both of the anode and cathode side measurement were conducted. There was no significant performance reduction owing to the insertion of the TFHS. The humidity difference between the anode and the cathode CL surfaces in the high humidity supply gas condition was smaller than in the low humidity condition owing to the higher water diffusion coefficient of the PEM.

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In situ measurement of relative humidity in a PEM fuel cell using fibre Bragg grating sensors

Cited by 23 publications

References 25 publications

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

Sensor development and optimization for a proton exchange membrane fuel cell system in automotive applications

Measurement of Through-Plane Humidity Distribution inside an MEA by Thin Film Sensor

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