Simulation of electric field control effects on the ion transport in proton exchange membranes for application in fuel cells and electrolysers

Cosse, Carsten; Schumann, Marc; Becker, Daniel; Schulz, Detlef

doi:10.1016/j.ijhydene.2021.12.116

Cited by 8 publications

(3 citation statements)

References 49 publications

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“…It demonstrates that the hydrogen supplied into the system undergoes proton dissociation in sufficient quantities to pass through the membrane to the cathode side, and thus the impedance in this range is low in comparison to the static flow controller. Excess hydrogen feeding can result in charge accumulation, increasing system resistance . The third phase, which occurs at low frequencies, suggests that there are issues with mass transportation.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Excess hydrogen feeding can result in charge accumulation, increasing system resistance. 35 The third phase, which occurs at low frequencies, suggests that there are issues with mass transportation. The accumulation of product water along the flow channel, gas diffusion layer, and catalyst surface in Warburg diffusion fuel cells has been shown to create mass transfer resistance within the fuel cell.…”

Section: Results and Discussionmentioning

confidence: 99%

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Hydrogen Flow Controller Applied to Driving Behavior Observation of Hydrogen Fuel Cell Performance Test

2022

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Fuel cell performance tests for automotive applications include static and dynamic tests, and the dynamic load test is typically carried out to investigate the cell operating performance related to driving behavior in the particular use of fuel cell electric vehicles. The automatic hydrogen flow controller, utilized to regulate the hydrogen flow as a function of time, is one of the imperative apparatuses applied for the dynamic test. The driving behavior generally consists of rapid load fluctuations, several loads running at idle, full power, overload circumstances, start−stop repeats, and cold starting, and these dynamic variations are directly related to the power required for propelling a vehicle and the demand for hydrogen volume fluctuation throughout time. The desired automatic hydrogen flow controller was designed and manufactured for the dynamic performance test via the driving simulation protocol of a heavy-duty vehicle. The main experimental activities were performed to observe the responsibility and accuracy of the invented controller. The relation between the reliability of using the automatic hydrogen flow controller and the performance improvement of fuel cell operation was studied to gain ideas for further fuel cell modification. The hydrogen flow rates controlled by the created flow controller presented a data tolerance of approximately 0.84% which was not significantly different from the theoretical figure based on T-test analysis. The controller reacted to variations in flow rates in as little as 1−2 s, which was acceptable for the dynamic test. Regarding the performance enhancement, this automatic hydrogen flow controller assisted a single cell to generate 16% more power and 33% more energy at 45 mA as a minimum current demand in comparison with the results obtained from a test system using a traditional hydrogen controller with a constant flow rate.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Hydrogen Flow Controller Applied to Driving Behavior Observation of Hydrogen Fuel Cell Performance Test

2022

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“…The accurate illustration of the voltage instability phenomena requires a detailed model of power system additives (generators, transformers, loads and others) [49]. The risk of voltage instability of a power machine can be measured via the gap of the consistent-nation power go with the flow equations from the initial point of operation (base case) to its saddle-node bifurcation point, referred to as the voltage collapse point.…”

Section: Voltage Collapsementioning

confidence: 99%

Investigation of the Effects of Fuel Cells on V-Q & V-P Characteristics

Zadehbagheri¹,

Kiani

Sutikno

2022

Journal of Robotics and Control

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In this paper, the use of a FC system connected to the network is proposed as a source of DG with high reliability, and for this purpose, the dynamic model of the fuel cell has been simulated. A hybrid system of fuel cell distributed generation (FCDG) is presented to provide electrical energy for a small isolated area. Boost converter (DC/DC), in order to increase the voltage level of the system and stabilize the DC link voltage has been used, which provides the possibility of connecting several different scattered production sources in parallel. Voltage stability is concerned with the ability of a power system to maintain acceptable bus voltages under normal conditions and after being subjected to a disturbance. The use of DG sources has many advantages, including meeting peak load needs, reducing network losses, providing reactive power locally, and regulating network voltage. Among all sources of distributed production, fuel cells are of special importance due to their high efficiency, high energy density, the ability to simultaneously produce heat and electric power, and low emission of pollutants. Using fuel cells (FCs) have several advantages and in this paper we investigate the effects of FCs on power systems via simulation a single machine (DG as small gas turbine coupled with a FC) in the Dig Silent area for different PF of FC. Different PF for FC obtained with control the DC to AC inverter. We found that by control the PF of FCs, we can increase the limitation of reactive generation of overall system and improve the V-P V-Q characteristics of overall system. With the grid-connected inverter's switching control, the active and reactive power injected into the grid is controlled independently.

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Comparative study of random and block SPEEK copolymers for high-temperature proton exchange membrane electrolysis

Mirsalami,

Mirsalami

2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Simulation of electric field control effects on the ion transport in proton exchange membranes for application in fuel cells and electrolysers

Cited by 8 publications

References 49 publications

Hydrogen Flow Controller Applied to Driving Behavior Observation of Hydrogen Fuel Cell Performance Test

Hydrogen Flow Controller Applied to Driving Behavior Observation of Hydrogen Fuel Cell Performance Test

Investigation of the Effects of Fuel Cells on V-Q & V-P Characteristics

Comparative study of random and block SPEEK copolymers for high-temperature proton exchange membrane electrolysis

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