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Iranian Journal of Chemical Engineering، جلد ۱۶، شماره ۴، صفحات ۲۳-۳۵
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عنوان انگلیسی CFD Simulation of Methane Steam Micro-Reformer: Channel Design and Inlet/Outlet Configuration
چکیده انگلیسی مقاله Micro-reformers used for producing hydrogen with a high surface-to-volume ratio in small-scale fuel cells were investigated. To this end, scrutinizing and exploiting all areas of micro reformers is very important. Parallel micro-channels have shown good performance in eliminating dead volumes. Inlet/outlet configuration has great effect on the velocity distribution through micro-channels. In this study, four configurations (1 inlet/1 outlet on the same and opposite sides; 1 inlet/2 outlets on the same and opposite sides) were studied through simulation and 1 inlet/2 outlets on opposite sides were found to have the lowest velocity difference, hence having the best configuration. Simulations were carried out at 600 °C, 1 atm, with S/C=3 and feed flow rate of 100 mL/min. Three channel patterns (i.e., parallel, splitting-jointing and pin-hole) were compared in terms of Figure of Merit (FoM) and specific conversion. Parallel channel design revealed a high value of specific conversion to be about 5.36   , while splitting-jointing and pin-hole were 5.33  and 4.91 , respectively. Based on FoM, pin-hole design had a high value of 1.34   , while the values of splitting-jointing and parallel designs were 0.037  and 1.28 , respectively.
کلیدواژه‌های انگلیسی مقاله Micro-Reformer,Channel Design,Methane,Simulation,Fluent
نویسندگان مقاله H. Mohammadnezami |
Hydrogen and Fuel cell Research Laboratory, Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Kashan, Iran

A. Irankhah |
Hydrogen and Fuel Cell Research Lab., Chemical Engineering Dep., Engineering Faculty, University of Kashan

نشانی اینترنتی https://www.ijche.com/article_133029_c299423b7cf9b890c98702cfb579c9f9.pdf
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