Computation and numerical modeling of fuel concentration distribution and current density on performance of the microfluidic fuel cell

Herlambang, Yusuf Dewantoro; Roihatin, Anis; Kurnianingsih, Kurnianingsih; Prasetyo, Totok; Lee, Shun‐Ching; Shyu, Jin‐Cherng

doi:10.1063/1.5140949

Cited by 9 publications

(4 citation statements)

References 29 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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“…In the meantime, oil reserves in Indonesia and other nations are projected to be drained within 20 years based on the ratio of reserves to production in 2007. Meanwhile, it is anticipated that natural gas would run out in 61 years and coal in 147 years [2], [6], [7], [8], [9].…”

Section: Introductionmentioning

confidence: 99%

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2023

Jurnal Polimesin

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The purpose of this study is to examine the performance of the Savonius turbine on the inner blade position in order to improve turbine efficiency. The blades used are a simplification of the Savonius U/L and the Savonius 1:2 double blade model. This research begins by creating four blade models: a single-blade model, a double-blade model at the blade's tip, a double-blade model at the blade's base, a single-blade model, and a double-blade model along the blades against the wind. The four models are then fitted in the test system for generator performance. Next, the efficiency characteristics of the turbine will be tested against rotation. The test results of the four models were evaluated by comparing each model's efficiency. The results indicate that the Savonius double-blade 1:2 and Savonius U/L turbines achieve efficiencies of 2.42% and 2.1% at 5 m/s and 7 m/s, respectively. At speeds of 5 m/s and 7 m/s, the double-tip position inner blade model increased by 81% and 61%, respectively. The double-tip inner blade variant has the maximum efficiency at 9 m/s, at 3.71 percent. Therefore, the Savonius U/L type vertical axis wind turbine with a 1:2 double blade is the most suited blade model for usage at wind speeds less than 7 meters per second. While the Savonius model with innovations in the inner blade double tip position is suitable for operation at wind speeds greater than 9 meters per second, the Savonius model without such advances is not viable.

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“…Nowadays, the demand for fossil fuel energy has increased, necessitating the development of alternative energy sources to prepare for the eventual depletion of fossil fuel sources. Wind energy, fuel cell, and solar energy are environmentally friendly alternative energy with a high potential for development [1][2][3] . Indonesia has a large enough potential for wind power and is available all year round because it is located in a tropical climate.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Simulation Investigation on Savonius Turbine: Influence of Inlet-Outlet Ratio Using a Modified Blade Shaped to Improve Performance

Herlambang¹,

Supriyo²,

Prasetiyo³

et al. 2022

Evergreen

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This study aims to obtain the characteristics of the Savonius turbine based on the ratio of the inlet and outlet blades by using a modified blade shape and analyzing numerical simulations of the speed and pressure around the turbine blades. The use of Savonius turbines can be a solution because it produces large torque even if installed at low wind speed. Savonius blade modification into a double blade with a combination of type L and U aims to capture greater wind energy while generating greater electrical power. The study was tested at speeds of 3, 5, 7, and 9 m/s with variable differences in the side in and out of the turbine. However, what is presented in this article is the test parameters at a wind speed of 7 m/s. The test obtained data in the form of torque, generator speed, voltage, and current produced by the turbine. Once analyzed it can be concluded that the best performance is produced by a single blade rotor, then the rotor is 1:1, 2:1, and the lowest performance is obtained from the 3:1 rotor. The results of the study indicate that the Savonius turbine has optimum performance on a single blade rotor model at 189 rpm, the power coefficient value is 0.039, turbine power is 80.26 W, generator power is 3.08, and system efficiency is 3.84%.

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Computation and numerical modeling of fuel concentration distribution and current density on performance of the microfluidic fuel cell

Cited by 9 publications

References 29 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

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Experimental and Simulation Investigation on Savonius Turbine: Influence of Inlet-Outlet Ratio Using a Modified Blade Shaped to Improve Performance

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