کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7737028 | 1497976 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct measurement of through-plane thermal conductivity of partially saturated fuel cell diffusion media
ترجمه فارسی عنوان
اندازه گیری مستقیم رسانایی حرارتی از طریق هواپیما رسانه انتشار پیل سوختی اشباع شده
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
An experimental study to investigate the through-plane thermal conductivity of three different diffusion media (DM) used in polymer electrolyte fuel cells (PEFCs) as a function of compression (from 0.1Â MPa to 2Â MPa) and saturation (from 0 to 25%) was performed. Additionally, measurements to determine the stress-strain relationship for the materials were made using an optical microscope. Both compression and water content had a significant impact on the through-plane thermal conductivity, which should be accounted for in multiphase modeling efforts. An analytical expression for the theoretical maximum of the through-plane thermal conductivity, as a function of both compression and saturation, was developed to help understand the nature of liquid connectivity in saturated pores. Additionally, a relationship was developed to predict actual thermal conductivity of the tested materials as a function of both compression and saturation based on experimentally measured data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 256, 15 June 2014, Pages 212-219
Journal: Journal of Power Sources - Volume 256, 15 June 2014, Pages 212-219
نویسندگان
G. Xu, J.M. LaManna, J.T. Clement, M.M. Mench,