Study on the coupled dynamics of rigid-liquid-flexible spacecraft by using isogeometric analysis for liquid sloshing

Yu, Jiarui; Yue, Baozeng

doi:10.1016/j.apm.2022.08.026

“…However, the key problem with the explanation is that hot spots and cold spots may have occurred in the parallel design of the BPPs which makes the parallel channel is the lowest overall performance for PEMFCs. The other type of design is the mesh flow field plate, which is a special case of paralleled design where parts are open between the parallel paths creating a grid (Catlin, 2010, Yu, 2016, Fuel Cell Store, 2017. The metal meshy or foaming has been presented as in ref.…”

Section: -Gaskets 5-end Platesmentioning

confidence: 99%

Modelling, Optimising and Improving Metal Foam and Porosity of PEMFCs

Algaddafi,

Hasan

2024

Preprint

0

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The fuel cell particularly the Proton Exchange Membrane Fuel Cell (PEMFC) is a new energy technology that plays a critical role in achieving market viability. The PEMFC has high power density, zero CO2 emissions, and high conversion efficiency. However, with uniform distribution of fuel in PEMFC, we can improve the performance and reduce the cost. The PEMFC will be more efficient and effective in terms of renewable energy as a byproduct only water. Metal foam is used as an alternative for the channels in PEMFC. The model of PEMFC was established by using the ANSYS Fluent 3D Model. Then we proposed four configurations of PEMFC. The outcome demonstrates that Case IV provided outstanding performance if it is compared with the other three cases. In terms of power density, Case IV provided a high power density that is double that of Case I. The porosity of metal foam was investigated. The 0.6 porosity value is found as the optimal value. The uniform distribution of the fuel can be achieved at this value which leads to the outstanding current density.

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“…However, the key problem with the explanation is that hot spots and cold spots may have occurred in the parallel design of the BPPs which makes the parallel the lowest overall performance for PEMFCs. The other type of design is the mesh flow field plate, which is a special case of paralleled design where parts are open between the parallel paths creating a grid (Catlin, 2010, Yu, 2016, Fuel Cell Store, 2017. The metal meshy or foaming has been presented as in ref.…”

Section: Introductionmentioning

confidence: 99%

Modelling, Optimising and Improving Metal Foam and Porosity of PEMFCs

Algaddafi,

Hasan

2024

Preprint

0

View full text Add to dashboard Cite

The fuel cell particularly the Proton Exchange Membrane Fuel Cell (PEMFC) is a new energy technology that plays a critical role in achieving market viability. The PEMFC has high power density, zero CO2 emissions, and high conversion efficiency. However, with uniform distribution of fuel in PEMFC, we can improve the performance and reduce the cost. The PEMFC will be more efficient and effective in terms of renewable energy as a byproduct only water. Metal foam is used as an alternative for the channels in PEMFC. The model of PEMFC was established by using the ANSYS Fluent 3D Model. Then we proposed four configurations of PEMFC. The outcome demonstrates that Case IV provided outstanding performance if it is compared with the other three cases. In terms of power density, Case IV provided a high power density that is double that of Case I. The porosity of metal foam was investigated. The 0.6 porosity value is found as the optimal value. The uniform distribution of the fuel can be achieved at this value which leads to the outstanding current density.

show abstract