Flow cells and alternative designs
The objective of this task is to develop the basis of a technology to harness the energy of salinity differences. There are two basic concepts so far identified: DcCM and EcCM. Both these concepts need to be explored as it can not be judged yet under which conditions which principle is preferred. In such a new research field it also likely that new technological concepts may arise. An example has been mentioned already, the dipping electrode system instead of the flow cell. For both the DcCM and EcCM system similar research question can be formulated and they are therefore grouped together.
1. How to construct a cell consisting of the electrodes? Which size and shape are
required? How to reduce internal resistances both electronic and ionic?
2. How to contact the electrodes with sea and fresh water? how to operate the
cycling of the fresh and sea water flow?
3. Finally we need to explore performance under different conditions of salinity,
temperature and solution composition.
Both an experimental approach using small prototypes and a more theory-based
approach using mathematical models will be used. These approaches can reinforce each other and lead to shorter development paths. The key measure power density and energy recovery will be leading in the development.