Polymer electrolyte membrane fuel cell efficiency at the stack level

Piela, Piotr; Mitzel, Jens

doi:10.1016/j.jpowsour.2015.05.043

Cited by 20 publications

(10 citation statements)

References 4 publications

(6 reference statements)

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“…The other elements of the test bench comprised two cascade axial fans (7), a Sentry ST723 digital tachometer (8), a speed regulator (9), and a data acquisition unit (12). The air properties were determined using a Comet D4130 digital thermohygrometer/barometer (5), whereas electrical measurements were made with a wattmeter (10), a voltmeter, and an ammeter (11). The details of the experimental setup for the described measurements were previously described in [25].…”

Section: Measurements Of the Efficiency Of The Air-cooling Systemmentioning

confidence: 99%

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Design, Development, and Performance of a 10 kW Polymer Exchange Membrane Fuel Cell Stack as Part of a Hybrid Power Source Designed to Supply a Motor Glider

et al. 2020

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A 10 kW PEMFC (polymer exchange membrane fuel cell) stack consisting of two 5 kW modules, (A) and (B), connected in series with a multi-function controller unit was constructed and tested. The electrical performance of the V-shaped PEMFC stack was investigated under constant and variable electrical load. It was found that the PEMFC stack was capable of supplying the required 10 kW of electrical power. An optimised purification process via ‘purge’ or humidification, implemented by means of a short-circuit unit (SCU) control strategy, enabled slightly improved performance. Online monitoring of the utilisation of the hydrogen system was developed and tested during the operation of the stack, especially under variable electrical load. The air-cooling subsystem consisting of a common channel connecting two 5 kW PEMFC modules and two cascade axial fans was designed, manufactured using 3D printing technology, and tested with respect to the electrical performance of the device. The dependence of total partial-pressure drop vs. ratio of air volumetric flow for the integrated PEMFC stack with cooling devices was also determined. An algorithm of stack operation involving thermal, humidity, and energy management was elaborated. The safety operation and fault diagnosis of the PEMFC stack was also tested.

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Section: Measurements Of the Efficiency Of The Air-cooling Systemmentioning

confidence: 99%

“…One option is dependent on the type of cooling medium. It was found that effective cooling is necessary for the safety and operational efficiency of high-powered PEMFC stacks [11,12]. The application of a liquid cooling system, compared to air cooling, enables more uniform temperature distribution.…”

Section: Introductionmentioning

confidence: 99%

Design, Development, and Performance of a 10 kW Polymer Exchange Membrane Fuel Cell Stack as Part of a Hybrid Power Source Designed to Supply a Motor Glider

et al. 2020

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“…The main advantage of the fuel cell system, notably PEMFC, is the efficiency in energy conversion, once the efficiency of electrochemical systems is above the other converter; however, the source of hydrogen is important [40,41]. The hydrogen obtained from water electrolysis is very pure, but it results in energy deficit [42]; the H 2 from steam hydrocarbons contains CO.…”

Section: Proton Exchange Membrane Fuel Cellmentioning

confidence: 99%

Production of Hydrogen and their Use in Proton Exchange Membrane Fuel Cells

Colmati¹,

Alonso²,

Martins³

et al. 2018

Advances in Hydrogen Generation Technologies

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This work will show an overview of the hydrogen production from ethanol by steam reforming method, using distinct catalysts, resulting in low carbon monoxide content in H2 produced; a thermodynamic analysis of reforming employing entropy maximization, the ideal condition for ethanol, and other steam reforming reactions, the state of the art of steam reforming catalysts for H2 production with low CO content. Moreover, in the second part, there will be an overview of the use of hydrogen in a proton exchange membrane fuel cell (PEMFC), the fuel cell operational conditions, a thermodynamic analysis of PEMFC, the catalysts used in the electrodes of the fuel cell, consequences of the CO presence in the hydrogen fuel feed in PEMFC, and the operation conditions for maximum output power density.

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“…Polymer Electrolyte Fuel Cells (PEFCs) have many opportunities as power sources within a variety of markets, ranging from handheld portable electronics to large stationary combined heat and power systems (Sharaf & Orhan 2014;Piela & Mitzel 2015). One of the largest opportunities is the transport sector, where government and industry are already working towards decarbonisation in the face of climate change (Prins et al 2010).…”

Section: Introductionmentioning

confidence: 99%