Lecture-content:

During the one-year of operation of the Hydrogen Lab Bremerhaven (HLB), Fraunhofer IWES can look back on several experiences and lessons learned that can be shared with in the hydrogen community.
The start-up behavior and the time until a constant production rate was reached were examined with both electrolyzer systems.

This is particularly important in a planned offshore application with downtimes occurring.
Direct onshore and offshore production of green hydrogen has a high potential to increase the security of supply in decentralized power grids by smoothing out supply and demand peaks by means of the generation and reconversion of H2.

The HLB supports the activities and goals of an offshore hydrogen production by investigation of dynamic load behavior of electrolyzers and their secondary components.
One of the secondary components in offshore application is the desalination unit to provide ultra-pure water from seawater.

The HLB provide a test area for seawater treatment by carrying out tests with a thermal desalination unit as part of the H2 Mare research project.

The focus was also on dynamic behavior of the entire system. Short operating times, start-up and stop behavior at various operating points,
quality and quantity of the ultra-pure water produced depending on the available thermal energy, required energy input and economic viability.

Energy management also plays an important role. The waste heat from the electrolyzers should be used for the desalination unit and increase the efficiency of the process.

Investigations into this will take place later this year.

CV:

Age: 37
Education: M.Sc. / Mechanical Engineering / Universität Rostock / Focus on lightweight materials and construction (2008-2014)

Work Experience: Research Associate at Fraunhofer IWES since 2014 in the division rotorblade (2014-2023) and in the division test field Wind and Hydrogen (2023 – now)

Main competence:

• Lightweight construction and manufacturing

• Process development for blade manufacturing (automatic handling of textiles, Quality Management, mold manufacturing, Sensor systems)

• Process evaluation for the IWES Hydrogen Lab

• Project support H2 Wind / Development of a test infrastructure for seawater desalination system for direct-coupled offshore hydrogen production