کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7729752 1497931 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A thermodynamic approach for selecting operating conditions in the design of reversible solid oxide cell energy systems
ترجمه فارسی عنوان
یک روش ترمودینامیکی برای انتخاب شرایط عملیاتی در طراحی سیستم های انرژی سلولی اکسید جامد برگشت پذیر
کلمات کلیدی
سلول اکسید جامد، الکترولیز، ذخیره انرژی الکتریکی، ولتاژ حرارتی باتری جریان سلول های سوخت برگشت پذیر،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Reversible solid oxide cell (ReSOC) systems are being increasingly considered for electrical energy storage, although much work remains before they can be realized, including cell materials development and system design optimization. These systems store electricity by generating a synthetic fuel in electrolysis mode and subsequently recover electricity by electrochemically oxidizing the stored fuel in fuel cell mode. System thermal management is improved by promoting methane synthesis internal to the ReSOC stack. Within this strategy, the cell-stack operating conditions are highly impactful on system performance and optimizing these parameters to suit both operating modes is critical to achieving high roundtrip efficiency. Preliminary analysis shows the thermoneutral voltage to be a useful parameter for analyzing ReSOC systems and the focus of this study is to quantitatively examine how it is affected by ReSOC operating conditions. The results reveal that the thermoneutral voltage is generally reduced by increased pressure, and reductions in temperature, fuel utilization, and hydrogen-to-carbon ratio. Based on the thermodynamic analysis, many different combinations of these operating conditions are expected to promote efficient energy storage. Pressurized systems can achieve high efficiency at higher temperature and fuel utilization, while non-pressurized systems may require lower stack temperature and suffer from reduced energy density.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 301, 1 January 2016, Pages 93-104
نویسندگان
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