Project

Storing Excess Energy in Fuel Form with Electrolyzer

Publisher

Supervisor

Location

Greater Copenhagen area

In a future energy system based primarily on renewable energy sources (e.g. wind and sun) electrolysis is expected to play a key role. Fuel generated by electrolysis can store power from the renewable energy sources when electricity supply exceeds demand. The generated fuel can then be used to produce electricity when demand is high. This project aims a designing a ‘dual-mode’ Solid Oxide Cell systems which can operate efficiently in both fuel cell and electrolysis mode.

In a future energy system which would be primarily based on renewable energy sources (e.g. wind and sun) electrolysis is expected to play a key role. Hydrogen based fuel generated by electrolysis can store power from the renewable energy sources when electricity supply exceeds demand. Solid Oxide Fuel Cell (SOFC) stacks and systems which have recently proven to be the most power effective of all existing electrolysis technologies and hence positioned to play a central role in the future storage and conversion of renewable energy. A unique feature of Solid Oxide Cells is that the same stack can operate in both fuel cell and electrolysis mode. In a future energy system this allows the same stacks to be used for storing energy (electrolysis mode) when electricity supply exceeds demand and for generating electricity (fuel cell mode) when electricity demand exceeds supply. However, the stack is only one element of a fuel cell/electrolysis system, other key elements like heat exchangers, pumps and off gas burners actually accounts for most of the system costs. This project aims a designing a ‘dual-mode’ Solid Oxide Cell systems which can operate efficiently in both fuel cell and electrolysis mode. The ambition is a far as possible to use the same components in both modes to achieve cost-effective and compact dual-mode systems for the future energy production and storage. The project will include both modelling and if needed some experimental work. A model will be developed for dual mode Solid Oxide Cell systems and this model will be used to optimise power efficiency and cost for different system lay-outs.

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Contact

Company / Organization

DTU Mekanik

Name

Marvin Mikael Rokni

Position

Lektor

Mail

mr@mek.dtu.dk

Supervisor info

MSc in Sustainable Energy

Supervisor

Marvin Mikael Rokni

ECTS credits

30

Type

MSc thesis

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

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