Discrete ejector control solution design, characterization, and verification in a 5 kW PEMFC system

Nikiforow, Kaj; Koski, Pauli; Ihonen, Jari

doi:10.1016/j.ijhydene.2017.05.151

Cited by 66 publications

(17 citation statements)

References 22 publications

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“…The electrochemical currents is modelled by applying the Secondary Current Distribution interface using Ohms law and solving for s  in the GDLs, s  and l  in the porous electrodes, and l  the electrolyte membrane. In the porous electrodes, not only the ionic and electronic potentials define the local current densities, but also local reactant concentrations [24][25][26]. The oxidation of hydrogen happened on the anode as given by the following equation…”

Section: Resultsmentioning

confidence: 99%

Numerical Analysis of Phenomena Transport of a Proton Exchange Membrane (PEM) Fuel Cell

Herlambang

Arifin

Kurnianingsih

et al. 2021

ARFMTS

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The investigation the PEM fuel cell under various conditions was carried out through numerical simulation. The results revealed that the mass transport resistance, the ionic resistance, and charge transfer resistance defined the current distribution in the cathode catalyst layer. The highest current distribution in the cell was determined by the highest depletion of oxygen concentration in the exit side of the channel, and the amount of the reacted and carried oxygen towards the electrode surface of the mass transfer conditions. Among all simulation conditions, the current density on the shape gas channel with the channel ratio height-width 1:1 and 2:1 was 1,061 and 1,078 A/m2, respectively, with the power density of the cell was 3,714 W/m2 and 3,776 W/m2, respectively.

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Section: Resultsmentioning

confidence: 99%

Numerical Analysis of Phenomena Transport of a Proton Exchange Membrane (PEM) Fuel Cell

Herlambang

Arifin

Kurnianingsih

et al. 2021

ARFMTS

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“…Considering once again the main advantage of the proposed strategies based on a mixed optimization function ( f (v 1 , v 2 ) = k net P FCnet + k f uel Fuel e f f ) to easily change the optimization objective (which can be the FC net power P FCnet maximization if k fuel = 0 or fuel economy maximization if k fuel 0), it is worth mentioning that this feature could be very interesting for implementing in FC vehicles. Safe implementation in FC vehicles can be ensured by 100 A/s slope limiters of the reference currents I re f (O2) and I re f (H2) from the fueling regulators (5-6), which will limit the fueling flow rates AirFr and FuelFr, avoiding fuel starvation [82].…”

Section: Discussionmentioning

confidence: 99%

Energy Efficiency and Fuel Economy of a Fuel Cell/Renewable Energy Sources Hybrid Power System with the Load-Following Control of the Fueling Regulators

Bizon

Thounthong

2020

Mathematics

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Two Hybrid Power System (HPS) topologies are proposed in this paper based on the Renewable Energy Sources (RESs) and a Fuel Cell (FC) system-based backup energy source. Photovoltaic arrays and wind turbines are modeled as RESs power flow. Hydrogen and air needed for FC stack to generate the power requested by the load are achieved through the Load-Following control loop. This control loop will regulate the fueling flow rate to load level. A real-time optimization strategy for RES/FC HPS based on Extremum Seeking Control will find the Maximum Efficiency Point or best fuel economy point by control of the boost converter. Therefore, two HPS configurations and associated strategies based on Load-Following and optimization loops of the fueling regulators were studied here and compared using the following performance indicators: the FC net power generated on the DC bus, the FC energy efficiency, the fuel consumption efficiency, and the total fuel consumption. An increase in the FC system’s electrical efficiency and fuel economy of up to 2% and 12% respectively has been obtained using the proposed optimization strategies compared with a baseline strategy.

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“…The commercial refueling WEH  system is formed by the TK-16 nozzle and the TN-1 receptacle, and integrates a high-flow check valve and a self-cleaning particle filter (20 micron). or hydrogen purge strategies [18][19][20][21][22][23][24]. To this end, hydrogen blowers, recirculation pumps or Ventury-type ejectors are included at the anode gas line.…”

Section: The Hybrid Electric Vehicle (Fchev)mentioning

confidence: 99%

Remodeling of a commercial plug-in battery electric vehicle to a hybrid configuration with a PEM fuel cell

Roda

Carroquino

Valiño

et al. 2018

International Journal of Hydrogen Energy

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Discrete ejector control solution design, characterization, and verification in a 5 kW PEMFC system

Cited by 66 publications

References 22 publications

Numerical Analysis of Phenomena Transport of a Proton Exchange Membrane (PEM) Fuel Cell

Numerical Analysis of Phenomena Transport of a Proton Exchange Membrane (PEM) Fuel Cell

Energy Efficiency and Fuel Economy of a Fuel Cell/Renewable Energy Sources Hybrid Power System with the Load-Following Control of the Fueling Regulators

Remodeling of a commercial plug-in battery electric vehicle to a hybrid configuration with a PEM fuel cell

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