Numerical Investigation of Effects of Working Conditions on Performance of Pem Fuel Cell

Özdoğan, Muhammet

doi:10.18186/thermal.507919

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…The general form of the conservation of mass, momentum, energy, species, and charge transfer equations to be used in the numerical analyses of planar and cylindrical PEM fuel cells are given below. [11,15,20] Conservation of mass…”

Section: Differential Equationsmentioning

confidence: 99%

“…In the literature, there are many studies examining the effect of changing operating conditions on fuel cell performance. Ozdogan et al [11] numerically investigated the effect of operating pressure and temperature on PEM fuel cell performance. In their study, non-isothermal, steady-state, and single-phase models were used.…”

Section: Introductionmentioning

confidence: 99%

“…Ozdogan et al. [ 11 ] numerically investigated the effect of operating pressure and temperature on PEM fuel cell performance. In their study, non‐isothermal, steady‐state, and single‐phase models were used.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Cellek,

Demircan

2023

Global Challenges

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In this study, the effects of varying operating conditions on cell performance in cylindrical and planar PEM (Proton Exchange Membrane) fuel cells with equal geometrical properties are investigated numerically. For this purpose, planar and cylindrical fuel cells are analyzed and the changes in performance are compared with each other. In particular, by increasing the temperature from 363 to 373 K, the current density decreases by ≈50%. When the pressure is increased from 1 atm to 1.2 atm, the current density increases by 20% and 2% in cylindrical and planar fuel cells, respectively. When the stoichiometric ratio is increased from 1 to 1.5, the current density increases by 25% and 32% for cylindrical and planar fuel cells, respectively. However, it decreases slightly after 1.5 value of the stoichiometric ratio. As a result, it is seen that temperature has a more significant effect on fuel cell performance than other operating conditions. It can be said that the planar fuel cell can operate with more stable performance than the cylindrical fuel cell when the temperature and pressure are changed. However, in the case of changing the stoichiometric ratio, there is no significant difference in the operating performance of both fuel cells.

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Section: Differential Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Cellek,

Demircan

2023

Global Challenges

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Performance assessment of a four-pass serpentine proton exchange membrane fuel cell with non-humidified cathode and cell state estimation without special measurement

Celik

Karagöz

2022

International Journal of Hydrogen Energy

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Critical investigation of microchannel design effect on thermal performances of a PEM fuel cell

KHELAIFA,

ATİA,

MOUSSA

et al. 2024

Journal of Thermal Engineering

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A major challenge for improving the characteristics of fuel cells is to obtain uniform tempera-ture distribution during its operation, in which a major part of hydrogen chemical energy is converted to heat. If not properly exhausted, this exothermic chemical reaction causes over-heating in the polymer electrolyte membrane fuel cells (PEMFCs), leading to a reduction in their performance. Hence, analyzing different techniques for PEMFCs cooling may be nec-essary for this kind of energy systems. In this study, four microchannel design effect on alu-minum oxide (Al2O3) nanofluids thermal behavior in cooling plates with 1400×1800 mm2 was investigated using computational fluid dynamic (CFD) simulation. The performances of proposed microchannel designs were evaluated in terms of maximum and uniformity tem-perature. The suggested study has been validated by available published results from previous research studies. The obtained results depicted that the maximum temperatures have been 305.3K and 305.5K for S- character flow field and two stages coolant flow field microchannel designs, respectively. The results revealed that the multi-flow plate designs might greatly en-hance the performance of PEMFCs in terms of temperature distribution in the cooling plate when compared to standard flow field designs. Another important finding was that the two stages microchannel and S-design are more thermal stable compared with other microchan-nels.

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Numerical Investigation of Effects of Working Conditions on Performance of Pem Fuel Cell

Cited by 4 publications

References 14 publications

Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Performance assessment of a four-pass serpentine proton exchange membrane fuel cell with non-humidified cathode and cell state estimation without special measurement

Critical investigation of microchannel design effect on thermal performances of a PEM fuel cell

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