Design and characterization of an electronically controlled variable flow rate ejector for fuel cell applications

被引：137

作者：

Brunner, Douglas A. ^{[1
]}

Marcks, Shane ^{[1
]}

Bajpai, Manish ^{[1
]}

Prasad, Ajay K. ^{[1
]}

Advani, Suresh G. ^{[1
]}

机构：

[1] Univ Delaware, Dept Mech Engn, Fuel Cell Res Ctr, Newark, DE 19716 USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 05期

关键词：

Ejector; Hydrogen recirculation; Fuel cell; Control systems; Supersonic flow; CFD; SYSTEM;

D O I：

10.1016/j.ijhydene.2011.11.116

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：

A variable flow ejector is presented to address the challenge of providing cost-effective recirculation of hydrogen in fuel cell systems. The ejector uses supersonic flow to provide sufficient pressure rise for the Ballard Mark 9 SSL stack used in the University of Delaware's fuel cell hybrid buses. Details of geometry optimization via computational fluid dynamic simulation, control system design, electronic control implementation, and mechanical design are discussed. Results from testing in the final application are included, showing the ejector's excellent performance compared to Ballard's specifications for recirculation flow rate. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：4457 / 4466

页数：10

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