Thin film thermocouples for in situ membrane electrode assembly temperature measurements in a polybenzimidazole-based high temperature proton exchange membrane unit cell

Ali, Syed Talat; Lebæk, Jesper; Nielsen, Lars; Mathiasen, Claus; Møller, Per; Kær, Søren Knudsen

doi:10.1016/j.jpowsour.2010.02.018

Cited by 27 publications

(10 citation statements)

References 12 publications

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“…Firstly, it decreases the number of thermoelements used to create the sensing points due to its architecture. Secondly, it increases the spatial and temporal resolution due to being in thin film form and less distortion to environment [ 10 , 16 , 17 ]. However, during the cooling segment, at a temperature around 600 °C, sensor failure had occurred [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Performance and Durability of Thin Film Thermocouple Array on a Porous Electrode

Guk

Ranaweera

Venkatesan

et al. 2016

Sensors

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Management of solid oxide fuel cell (SOFC) thermal gradients is vital to limit thermal expansion mismatch and thermal stress. However, owing to harsh operation conditions of SOFCs and limited available space in stack configuration, the number of techniques available to obtain temperature distribution from the cell surface is limited. The authors previously developed and studied a thermocouple array pattern to detect surface temperature distribution on an SOFC in open circuit conditions. In this study, the performance in terms of mechanical durability and oxidation state of the thin film thermoelements of the thermocouple array on the porous SOFC cathode is investigated. A thin-film multi-junction thermocouple array was sputter deposited using a magnetron sputter coater. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) characterisation techniques were carried out to understand characteristics of the thin film before and after temperature (20 °C–800 °C) measurement. Temperature readings from the sensor agreed well with the closely placed commercial thermocouple during heating segments. However, a sensor failure occurred at around 350 °C during the cooling segment. The SEM and XPS tests revealed cracks on the thin film thermoelements and oxidation to the film thickness direction.

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Section: Introductionmentioning

confidence: 99%

Performance and Durability of Thin Film Thermocouple Array on a Porous Electrode

Guk

Ranaweera

Venkatesan

et al. 2016

Sensors

View full text Add to dashboard Cite

show abstract

“…Temperature H 2 /Air NTC thermistor [37][38][39]. PTC or NTC thermistor [39]; Thermocouple [50]. Liquid coolant PTC or NTC thermistor [39].…”

Section: Liquid Coolantmentioning

confidence: 99%

“…By using two paired gauges in Wheatstone bridge based on different novel techniques for PEMFC system, are listed. Due to the fact that temperature and relative humidity distributions are closely related to water management and performance of the fuel cell, the development of relative humidity sensor and temperature sensor are most concerned [61][62][63]68]. The operating principles of sensors in Table .2 are also detailed.…”

Section: Commercialized Liquid Mass Flow M Etermentioning

confidence: 99%

“…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. The embedment models, which are embedded directly in gas inlet and outlet channels during fuel cell stack assembly procedure, are usually based on the MEMS technique, especially the flexible MEMS [62,[64][65][66][67].…”

Section: Commercialized Liquid Mass Flow M Etermentioning

confidence: 99%

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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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“…Fiber Bragg grating sensors have been installed between flow channels in a cathode collector plate of a single cell, distributed uniformly from the inlet to the outlet, to measure temperature [5]. Thin-film thermocouples (TFTCs) have been fabricated on Kapton (polyimide) substrate to measure the internal temperature of a polybenzimidazole (PBI)-based high-temperature PEMFC [6].…”

Section: Introductionmentioning

confidence: 99%

Use of flexible micro-temperature sensor to determine temperature in situ and to simulate a proton exchange membrane fuel cell

Lee

Weng

Cheng

et al. 2011

Journal of Power Sources

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Thin film thermocouples for in situ membrane electrode assembly temperature measurements in a polybenzimidazole-based high temperature proton exchange membrane unit cell

Cited by 27 publications

References 12 publications

Performance and Durability of Thin Film Thermocouple Array on a Porous Electrode

Performance and Durability of Thin Film Thermocouple Array on a Porous Electrode

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

Use of flexible micro-temperature sensor to determine temperature in situ and to simulate a proton exchange membrane fuel cell

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