Parametric investigation and optimization of passive direct ethanol alkaline fuel cells

Abdullah, S.; Kamarudin, S.K.; Hasran, Umi Azmah; Masdar, Mohd Shahbudin; Aziz, Azharin Shah Abd; Hashim, Norazlina

doi:10.1016/j.matpr.2021.01.279

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…In the literature, a wide range of FC types are described and categorized based on factors such as the type of fuel [12], operating temperature [13], and electrolyte membrane [14]. Among these FC types, proton exchange membrane FCs (PEMFCs) have emerged as a promising category.…”

Section: Literature Reviewmentioning

confidence: 99%

Robust Fuzzy Logic MPPT Using Gradient-Based Optimization for PEMFC Power System

Rezk,

Aly,

Ghoniem

2023

Sustainability

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In this study, the design of fuzzy logic control (FLC) systems for proton exchange membrane fuel cells (PEMFCs) maximum power point tracking (MPPT) is improved. The improvement is made possible by using a gradient-based optimizer (GBO), which maximizes the FLC systems’ freedom and flexibility while enabling accurate and speedy tracking. During optimization, the parameters of the FLC membership functions are considered choice variables, and the error integral is assigned to be the objective function. The proposed GBO-FLC method’s results are contrasted with those of other computational methods. The results demonstrated that the proposed GBO-FLC beats the other strategies regarding mean, median, variance, and standard deviation. A thorough comparison between the regular FLC and the upgraded FLC was conducted using a variety of scenarios with varied temperatures and water content. The results demonstrate that the suggested FLC-based GBO design provides a dependable MPPT solution in PEMFCs. The advancement of FLC systems through optimizing power generation in fuel cells is made possible by this work, opening the door for more effective and reliable alternative energy sources.

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Section: Literature Reviewmentioning

confidence: 99%

Robust Fuzzy Logic MPPT Using Gradient-Based Optimization for PEMFC Power System

Rezk,

Aly,

Ghoniem

2023

Sustainability

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“…Water flooding might also occur as ethanol was directly oxidised to generate water at the cathode side [19]. Higher ethanol concentration caused higher parasitic current at the cathode side, which led to the poorer overall performance of fuel cells [20].…”

Section: Figure 5 Influence Of Operating Temperature On Fuel Cell Per...mentioning

confidence: 99%

Modelling and Simulation of A Direct Ethanol Fuel Cell: Electrochemical Reactions and Mass Transport Consideration

CHALU

2022

J. Appl. Sci. Process Eng.

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Mathematical modelling was developed for direct ethanol fuel cell (DEFC) by considering electrochemical reactions and mass transport. The model was validated against experimental data from previous research and showed good agreement with the data. The developed mathematical modelling for this research was based on the Butler-Volmer equation, Tafel equation and Fick’s law. The model was used to investigate parameters such as ethanol concentration and cell operating temperature. The developed mathematical model simulated the data from previous research. Ethanol concentration played a vital role to achieve high-performance DEFC. The higher the ethanol concentration, the higher current could be generated in DEFC. Nonetheless, the higher the usage of the ethanol concentration, the higher the ethanol crossover might occur. The highest current density produced from the fuel cell was at 21.48 mA cm-2, for 2M of ethanol concentration. Operating temperature also affected cell performance. The higher the operating temperature, the higher power density could be generated—the peak power density of 5.7 mWcm-2 at 75 oC with 2M of ethanol. As for ethanol crossover, the highest ethanol crossover was at 12.4 mol m-3 for 3M concentration of ethanol. It proved that higher ethanol concentration led to higher ethanol crossover.

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“…The two devices both adopt oxygen in the air as the oxidant, while the fuels of the metal-air batteries are solid metals, and those of the fuel cells are gaseous and liquid fuels such as hydrogen gas, [5] methanol [6] and ethanol. [7] It has been reported that the power density of the fuel cell and metal-air battery was higher than that of the Liion battery. [8] And the fuels could be replenished in time to gain the continuous operation.…”

Section: Introductionmentioning

confidence: 99%

“…To tackle these issues, as the micro power sources, fuel cells and metal‐air batteries have been developed. The two devices both adopt oxygen in the air as the oxidant, while the fuels of the metal‐air batteries are solid metals, and those of the fuel cells are gaseous and liquid fuels such as hydrogen gas, [5] methanol [6] and ethanol [7] . It has been reported that the power density of the fuel cell and metal‐air battery was higher than that of the Li‐ion battery [8] .…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Paper‐ and Cotton‐Based Al‐Air Batteries without Catalysts for Low‐Cost Portable Micro Devices

Liu

et al. 2023

ChemistrySelect

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Conventional Al‐air batteries are not suitable as portable power devices due to their complicated water management and bulky system. To resolve this issue, the fiber paper‐ and cotton cloth‐based Al‐air batteries were proposed, which exploited the capillary force from the paper (FP) and cotton cloth (CC) to deliver the solutions and eliminated the external pump. The physical features of the FP and CC were gained including the surface morphologies, surface elementary analysis, liquid absorption and flow rates. CC owned larger liquid absorption and faster flow rate due to its hierarchically woven‐spun fiber structure, compared to the randomly oriented fibers of the FP, although the surface of the CC demonstrated lower O/C ratio than that of the FP. So, the performance of the CC‐based Al‐air battery was largely higher than that of the FP‐based battery. The performance of the CC‐based Al‐air battery was optimal at 1.0 M NaOH electrolyte and the anode‐to‐cathode surface area ratio of 1 : 4, with the peak power density of 14.95±0.28 mW cm−2, and the maximum current density of 36.61±0.54 mA cm−2. To apply the CC‐based Al‐air battery, the two‐battery pack connected in series was assembled to drive a timer and light 9 LEDs.

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Parametric investigation and optimization of passive direct ethanol alkaline fuel cells

Cited by 4 publications

References 30 publications

Robust Fuzzy Logic MPPT Using Gradient-Based Optimization for PEMFC Power System

Robust Fuzzy Logic MPPT Using Gradient-Based Optimization for PEMFC Power System

Modelling and Simulation of A Direct Ethanol Fuel Cell: Electrochemical Reactions and Mass Transport Consideration

Performance Comparison of Paper‐ and Cotton‐Based Al‐Air Batteries without Catalysts for Low‐Cost Portable Micro Devices

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