A thermodynamic model of membrane humidifiers for PEM fuel cell humidification control

被引：70

作者：

Chen, DM ^{[1
]}

Peng, H ^{[1
]}

机构：

[1] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME | 2005年 / 127卷 / 03期

关键词：

D O I：

10.1115/1.1978910

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Maintaining proper membrane humidity is crucial to ensure optimal operation of a polymer electrolyte membrane fuel cell system. A membrane humidifier using the fuel cell exhaust gas to humidify the dry air is studied in this paper. We first develop a thermodynamic model, which captures the crucial dynamic variables of the humidifier including the pressure, flow rate, temperature, and relative humidity of the air flow. Steady-state simulations are then conducted to optimize the humidifier design. Subsequently, dynamic simulations are performed to predict the behavior of the humidifier during transient operations typical for automotive applications. A simple proportional controller was designed to control the humidifier operation.

引用

页码：424 / 432

页数：9