A Comparative Investigation of L-Serpentine and Single Serpentine Flow Fields Efficiency in Proton Exchange Membrane Fuel Cells using Computational Fluid Dynamics
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 69
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شناسه ملی سند علمی:
JR_RERA-5-2_006
تاریخ نمایه سازی: 24 آذر 1402
چکیده مقاله:
Fuel cells have been identified as a promising technology to meet future electric power requirements. Out of various fuel cells, Proton Exchange Membrane Fuel Cells (PEMFC) has been staged up as they can operate at low temperatures and also have high power density. In this article, the flow field design of a Single Serpentine Flow Field (SSFF) has been modified to L-Serpentine Flow Field (LSFF) in order to reduce thermal and water management problems in PEMFC. A numerical study was conducted on ۴۴۱ mm۲ active area at ۷۰۰C and ۳ atm operating conditions, to evaluate various flow characteristics by comparing LSFF with SSFF, and it was observed that temperature and species flux distribution in LSFF enhanced significantly. The modification of the flow field yielded remarkable improvements in various aspects. These enhancements included a more uniform distribution of membrane water content, an impressive ۸% increase in O۲ consumption, a remarkable ۲۲% improvement in product evacuation demonstrated by the H۲O species profile, attributed to a ۴۰% reduction in product travel distance. Additionally, a noteworthy ۱۰% increase in power density was achieved. Despite a slight increase in pressure drop due to the additional bends and turns in the modified flow field, the impact on power density remained insignificant. These findings highlight the immense potential of the modified flow field to significantly enhance performance.
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نویسندگان
Amarnath Gundalabhagavan
Mechanical Engineering Department, National Institute of Technology, Warangal, Telengana, India.
Veeresh Babu Alur
Mechanical Engineering Department, National Institute of Technology, Warangal, Telengana, India.
Ganesh Babu Katam
Mechanical Engineering Department, National Institute of Technology Andhra Pradesh, Tadepalligudem, India.
Kshitij Bhosale
Mechanical Engineering Department, National Institute of Technology, Warangal, Telengana, India.
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