期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 42, 期 50, 页码 29966-29970出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.06.226
关键词
Subsonic ejector; Entrainment ratio; Hydrogen fuel; PEMFC
资金
- National Key Technology Research and Development Program of the Ministry of Science and Technology of China [2015BAG06B00]
A test facility for experimental determination of the ejector, used in the anode recirculation loop of the polymer electrolyte membrane fuel cell (PEMFC), was set up in this paper. Based on a 1-dimensional constant-pressure mixing model, an ejector with a convergent nozzle and a cylindrical mixing tube was designed. By the test facility, entrainment ratio and hydrogen mole recirculation ratio of the designed ejector were tested on different conditions, corresponding to the PEMFC stack operation protocols. The difference of the entrainment ratio and the mole recirculation ratio effectively shows the influence of water vapor on the actual recirculation quantity of hydrogen fuel. Results show when the hydrogen was saturated humidified at 60 degrees C, the entrainment ratio of the designed ejector ranged from 2.3 to 2.8, changing the primary flow rate from 26 to 38 standard liters per minute (SLPM) and the mole recirculation of hydrogen ranged from 0.75 to 0.8. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据