کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
191458 459721 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of in-plane effective thermal conductivity in PEM fuel cell diffusion media
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Measurement of in-plane effective thermal conductivity in PEM fuel cell diffusion media
چکیده انگلیسی

Gas diffusion media used in polymer electrolyte membrane (PEM) fuel cells are highly anisotropic with significantly different transport property values in the through- and in-plane directions. In this study, experimental measurements of the in-plane effective thermal conductivity k for gas diffusion media used in PEM fuel cells have been carried out using a parallel thermal conductance technique. Conductivity values are measured at a mean sample temperature of 70 °C for six different material types and two different orientations in order to quantify the effect of PTFE content on thermal conductivity and to reveal any anisotropic behavior. The results vary from a minimum of k = 3.54 W/(m °C) to a maximum value of 15.1 W/(m °C) for various samples and configurations tested in this study, with an uncertainty between 1% and 2% for all the cases investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 56, Issue 3, 1 January 2011, Pages 1670–1675
نویسندگان
, , ,