สืบค้นงานวิจัย
Modelling of a tubular solid oxide fuel cell with different designs of indirect internal reformer
Kim-Lohsoontorn P. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Modelling of a tubular solid oxide fuel cell with different designs of indirect internal reformer
ผู้แต่ง / หัวหน้าโครงการ (EN): Kim-Lohsoontorn P.
บทคัดย่อ (EN): The cell performance and temperature gradient of a tubular solid oxide fuel cell with indirect internal reformer (IIR-SOFC) fuelled by natural gas, containing a typical catalytic packed-bed reformer, a catalytic coated wall reformer, a catalytic annular reformer, and a novel catalytic annular-coated wall reformer were investigated with an aim to determine the most efficient internal reformer system. Among the four reformer designs, IIR-SOFC containing an annular-coated wall reformer exhibited the highest performance in terms of cell power density (0.67 W·cm-2) and electrical efficiency (68%) with an acceptable temperature gradient and a moderate pressure drop across the reformer (3.53 × 10-5 kPa). IIR-SOFC with an annular-coated wall reformer was then studied over a range of operating conditions: inlet fuel temperature, operating pressure, steam to carbon (S: C) ratio, gas flow pattern (co-flow and counter-flow pattern), and natural gas compositions. The simulation results showed that the temperature gradient across the reformer could not be decreased using a lower fuel inlet temperature (1223 K-1173 K) and both the power density and electrical efficiency of the cell also decreased by lowering fuel inlet temperature. Operating in higher pressure mode (1-10 bar) improved the temperature gradient and cell performance. Increasing the S: C ratio from 2: 1 to 4: 1 could decrease the temperature drop across the reformer but also decrease the cell performance. The average temperature gradient was higher and smoother in IIR-SOFC under a co-flow pattern than that under a counter-flow pattern, leading to lower overpotential and higher cell performance. Natural gas compositions significantly affected the cell performance and temperature gradient. Natural gas containing lower methane content provided smoother temperature gradient in the system but showed lower power density and electrical efficiency. © 2014 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences. Published by Elsevier B.V.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898063946&doi=10.1016%2fS2095-4956%2814%2960143-1&partnerID=40&md5=1e47216788046584ba7146c8a8b35523
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Catalytic reforming
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Modelling of a tubular solid oxide fuel cell with different designs of indirect internal reformer
Kim-Lohsoontorn P.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
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