Theoretical power density from salinity gradients using reverse electrodialysis
By D. Vermaas, Enver Güler, M. Saakes, D. C. Nijmeijer. 2012
186 citations recorded by the source corpus.
Reverse electrodialysis (RED) is a technology to generate power from mixing waters with different salinity. The net power density (i.e. power per membrane area) is determined by 1) the membrane potential, 2) the ohmic resistance, 3) the resistance due to changing bulk concentrations, 4) the boundary layer resistance and 5) the power required to pump the feed water. Previous power density estimations often neglected the latter three terms. This paper provides a set of analytical equations to estimate the net power density obtainable from RED stacks with spacers and RED stacks with profiled membranes. With the current technology, the obtained maximum net power density is calculated at 2.7 W/m2. Higher power densities could be obtained by changing the cell design, in particular the membrane resistance and the cell length. Changing these parameters one and two orders of magnitude respectively, the calculated net power density is close to 20 W/m2
Subfields: Biomedical Engineering, Control and Systems Engineering, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/748329f0b2d68b506c38ab1996834b14c269418c
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Biomedical Engineering
Citations in the corpus
- Nanocomposite reverse electrodialysis (RED) ion-exchange membranes for salinity gradient power generation (2014, background): “This electronic current and the potential difference over the electrodes can be used to generate electricity, when an external load or any form of energy consumer is connected to the system [10,11].”