کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6613158 459588 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance of a vanadium redox flow battery with and without flow fields
ترجمه فارسی عنوان
عملکرد باطری جریان ووادادی رادکس با و بدون زمینه جریان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A flow field is an indispensable component for fuel cells to macroscopically distribute reactants onto electrodes. However, it is still unknown whether flow fields are also required in all-vanadium redox flow batteries (VRFBs). In this work, the performance of a VRFB with flow fields is analyzed and compared with the performance of a VRFB without flow fields. It is demonstrated that the battery with flow fields has a higher discharge voltage at higher flow rates, but exhibits a larger pressure drop. The maximum power-based efficiency occurs at different flow rates for the both batteries with and without flow fields. It is found that the battery with flow fields Exhibits 5% higher energy efficiency than the battery without flow fields, when operating at the flow rates corresponding to each battery's maximum power-based efficiency. Therefore, the inclusion of flow fields in VRFBs can be an effective approach for improving system efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 142, 1 October 2014, Pages 61-67
نویسندگان
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