Simulation analysis of a system combining solid oxide and polymer electrolyte fuel cells

被引：27

作者：

Yokoo, M ^{[1
]}

Take, T ^{[1
]}

机构：

[1] NTT Corp, NTT Energy & Environm Syst Labs, Atsugi, Kanagawa 2430198, Japan

来源：

JOURNAL OF POWER SOURCES | 2004年 / 137卷 / 02期

关键词：

solid oxide fuel cell; polymer electrolyte fuel cell; combined system; steam reforming reaction; methane;

D O I：

10.1016/j.jpowsour.2004.06.007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We evaluated the performance of system combining a solid oxide fuel cell (SOFC) stack and a polymer electrolyte fuel cell (PEFC) stack by a numerical simulation. We assume that tubular-type SOFCs are used in the SOFC stack. The electrical efficiency of the SOFC-PEFC system increases with increasing oxygen utilization rate in the SOFC stack. This is because the amount of exhaust heat of the SOFC stack used to raise the temperature of air supplied to it decreases as its oxygen utilization rate increases and because that used effectively as the reaction heat of the steam reforming reaction of methane in the stack reformer increases. The electrical efficiency of the SOFC-PEFC system at 190 kW ac is 59% (LHV), which is equal to that of the SOFC-gas turbine combined system at 1014 kW ac. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：206 / 215

页数：10

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