



Location
Hohenheim, Stuttgart, Germany
What was installed?
2 x IndoorCabs (8x Electrolysers, 2x Dryer, 1x WTM, 1x WPS)
Where was it installed?
University Hohenheim
The Client:
The University of Hohenheim is an innovative and research-intensive university in the south of Stuttgart with students from around 100 nations and more than 2,000 employees. Generously equipped research facilities, a baroque castle and extensive parks characterize the campus. Modern teaching and cutting-edge research are combined in innovative subjects in the natural sciences, agricultural sciences and economics, and social sciences.
The Task:
To write a tender for a pilot plant for the production of alternative fuels based on biomethane in which hydrogen is converted with carbon dioxide to methane in a methanation reactor. The hydrogen required for this is produced in an electrolyser and is to be temporarily stored in a Type IV hydrogen tank as a buffer.
Components

WPS - Water Purification System
Enapter electrolysers are highly resilient to water input and can be fed with purified rainwater or tap water. A simple reverse osmosis processes with resin filters can provide the required water quality. The water input to the electrolyser needs to be desalinated and have a conductivity of < 20 µS/cm.

AEM Electrolyser EL 4.0
High efficiency Electrolyser with low requirements for input water purity. The Modules can be easily integrated in 19“ racks and have low maintenance requirements. As many modules as needed are addable to a scalable and modular System.

Water Tank Module (WTM) 2.1
The water tank is rack mountable into a standard 19” cabinet. It is able to supply 11 AEM electrolysers with clean water,

Dryer
The dryer is maintenance- free. During operation, one cartridge catches the humidity from the hydrogen gas stream of the electrolyser, while the other cartridge is heated and regenerated. The dryer is rack- mountable in a standard 19” cabinet.
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