Modeling and experimental validation of H2 gas bubble humidifier for a 50 kW stationary PEMFC system

被引：20

作者：

Nikiforow, K. ^{[1
]}

Ihonen, J. ^{[2
]}

Keranen, T. ^{[2
]}

Karimaki, H. ^{[2
]}

Alopaeus, V. ^{[1
]}

机构：

[1] Aalto Univ, Dept Biotechnol & Chem Technol, Aalto 00076, Finland

[2] VTT Tech Res Ctr Finland, Espoo 02044, Finland

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 18期

关键词：

PEMFC; Hydrogen; Humidity; Bubble humidifier; HEAT-TRANSFER; MASS-TRANSFER; LIQUIDS; COLUMN;

D O I：

10.1016/j.ijhydene.2014.04.058

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：

Ensuring uniform membrane hydration in a PEMFC (Proton Exchange Membrane Fuel Cell) is important for its performance and durability. In this study, a bubble humidifier for humidifying hydrogen in a 50 kW PEMFC pilot plant was designed, built, and modeled. Initial tests, carried out by humidifying air, show that a dew point temperature of higher than 59 degrees C is attained when operating the PEMFC plant at nominal power at 65 degrees C. The model simulation results show good agreement with experimental data and the model is used for studying humidifier performance at other conditions. Steady state simulation results suggest that by increasing the heating water flow rate, the humidifier outlet dew point temperature can be increased by several degrees because of improved heat transfer. Finally, dynamic simulation results suggest that the humidity of the hydrogen can be controlled by manipulating the heat supply to the humidifier. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：9768 / 9781

页数：14

共 17 条

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