Calculating minimum droplet diameter in dripping, spindle, and cone-jet modes based on experimental data in the electrospray process

Wang, Shi; Yazdekhasti, Arian; Alizadeh, As'ad; Basem, Ali; Jasim, Dheyaa J.; Al-Rubaye, Ameer H.; Salahshour, Soheil; Toghraie, Davood

doi:10.1016/j.expthermflusci.2024.111154

Cited by 1 publication

(1 citation statement)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cell temperature increased during the experiment, so they applied a neutron imaging technique to evaluate water film thickness dispensation. After 900 s of testing, the cell was almost dry, causing the variation in cell temperature and current density dispensation [27,28].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Heat Removal and H2O Retention in Passive Air-Cooled Polymer Electrolyte Membrane Fuel Cells by Altering Flow Field Geometry

Mohsen,

Basem

2024

Sustainability

Self Cite

View full text Add to dashboard Cite

This numerical study presents six three-dimensional (3D) cathode flow field designs for a passive air-cooled polymer electrolyte membrane (PEM) fuel cell to enhance heat removal and H2O retention. The data collected are evaluated in terms of water content, average temperature, and current flux density. The proposed cathode flow field designs are a straight baseline channel (Design 1), converging channel (Design 2), diverging channel (Design 3), straight channel with cylindrical pin fins (Design 4), trapezium cross-section channel (Design 5), and semi-circle cross-section channel (Design 6). The lowest cell temperature value of 56.67 °C was obtained for Design 2, while a noticeable water retention improvement of 6.5% was achieved in a semi-circle cathode flow field (Design 5) compared to the baseline channel. However, the current flux density shows a reduction of 0.1% to 1.2%. Nevertheless, those values are relatively small compared to the improvement in the durability of the fuel cell due to heat reduction. Although the modifications to the cathode flow field resulted in only minor improvements, ongoing advancements in fuel cell technology have the potential to make our energy landscape more sustainable. These advancements can help reduce emissions, increase efficiency, integrate renewable energy sources, enhance energy security, and support the transition to a hydrogen-based economy.

show abstract

Section: Introductionmentioning

confidence: 99%