Simulation of Droplet Dynamics in Channels of an Innovative PEM Fuel Cell with Parallel Flow-Field
محل انتشار: دومین کنفرانس انتقال حرارت و جرم ایران
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 432
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شناسه ملی سند علمی:
ICHMT02_134
تاریخ نمایه سازی: 18 مرداد 1398
چکیده مقاله:
In this study, dynamics of droplet movement in the parallel channels of a Proton Exchange Membrane Fuel Cell was investigated. Surface tension and wall adhesion forces were applied by using of volume of fluid method. Hydrophilic walls and hydrophobic gas diffusion layer were considered. The mechanism of droplet movement with different diameters was examined by using Weber and capillary numbers in the simple and tapered channels. It is illustrated that the flooding was reduced by tapering channel due to increasing of water removal from the gas diffusion layer and increasing of active area for oxygen passage. Therefore the risk of flooding reduces
کلیدواژه ها:
نویسندگان
Moosa Ashrafi
MSc. Student, Mech. Eng., K. N. Toosi Univ. of Technology, Tehran, Iran
Mehrzad shams
Assoc. prof., Mech. Eng., K. N. Toosi Univ. of Technology, Tehran, Iran