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GAS humidifiers for Fuel cell

Tough, providing the best humidity condition for fuel cells

Features

High permeability to water vapor Leading to COMPACT space requirements

Chemical resistance

High temperature stability for operation up to 120ºC

Where is UBEʼs Gas humidifier used?​

Fuel cell systems are among the most promising technologies for decarbonization in transportation sectors because fuel cell vehicles produce no CO2 emissions or pollutants. The exhaust is water vapor alone. Vehicle filling times with hydrogen are similar to current fuels and a single fill gives a longer range than a BEV. Polymer Electrolyte Fuel Cell (PEFC) technology is the most suitable for automotive applications as it is the smallest type of fuel cell and has the lowest operating temperature.

Fuel cell technology​

Proper control of humidity inside fuel cells is very important for good PEFC performance. The Polymer Electrolyte needs to be properly humidified for effective proton transer, and unnecessary water generated as a by-product of electricity generation needs to be passed to the exhaust.

UBEʼs Gas Humidifier controls fuel cell system humidity conditions by being installed in the air path

How UBEʼs Gas Humidifier​ works

UBE has developed its hollow fiber-based gas humidifier for humidity adjustment, giving great permeability and selectivity for airborne water vapor (H2O) This means it can effectively exchange humidity between wet gas and dry gas.

Features

UBE has extensive knowledge in polymer chemistry as a chemical company with a long history. UBE infuses its gas humidifier with our latest polyimide technologies to provide excellent features:

With Chemicals​

UBEʼs polyimide shows outstanding durability against solvents. This single point contributes to reliable long-term performance under demanding conditions of use.

Polymer Materials
Solvents
a)
Species
Trademark
N-methyl-2-pyrrolidone
Chloroform
1,4-dioxane
Cyclohexanone
Ethanol, n-hexane
1
UBE polyimide
-
Insoluble
Insoluble
Insoluble
Insoluble
Insoluble
3
Polyimide
Matrimid
Soluble
Soluble
Soluble
Insoluble
Insoluble
2
Polyetherimide
Ultem
Soluble
Soluble
Soluble
Insoluble
Insoluble
4
Polysulfone
Udel
Soluble
Soluble
Soluble
Soluble
Insoluble

With Heat

UBEʼs polyimide fiber shows good stability over a wide temperature range. The thermomechanical analysis (TMA) curve shows no significant membrane dimensional changes from 15 to 150 ºC.

Related Product

UBE NYLON™ 1218IU, the nylon 6 resin a plastic liner material in the high-pressure hydrogen tank

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GAS HUMIDIFIERS FOR FUEL CELL

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