Abstract
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 °C is attained when
operating the PEMFC plant at nominal power at 65 °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
Original language | English |
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Pages (from-to) | 9768-9781 |
Number of pages | 13 |
Journal | International Journal of Hydrogen Energy |
Volume | 39 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2014 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Bubble humidifier
- humidity
- hydrogen
- PEMFC