کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146050 1497350 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A miniaturized power generation system cascade utilizing thermal energy of a micro-combustor: Design and modelling
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A miniaturized power generation system cascade utilizing thermal energy of a micro-combustor: Design and modelling
چکیده انگلیسی
Currently, combustion-based micro power devices encounter the problem of low conversion efficiency. A miniaturized power generation system cascade utilizing thermal energy of a micro-combustor is proposed, because thermophotovoltaic (TPV) cells and thermoelectric (TE) modules work at different temperature levels. The system consists of a planar micro-combustor with a bended extension at the exit, two GaSb TPV modules to convert high temperature thermal radiation and two Bi-Te based TE modules attached to the bended extension to harness medium temperature thermal energy. The mathematical modelling approach to quantify the power output and conversion efficiency is systematically presented. The modelling results show that the integration of the TE modules could significantly improve the system efficiency. When burning the H2/air mixture, the overall system efficiency could reach 2.5% under the flow condition of U0 = 3 m/s and Φ = 1.0. Finally, measures for better thermal management to further enhance the conversion efficiency are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 27, 6 July 2017, Pages 17275-17283
نویسندگان
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