Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment
Agenda

Jan Willem van Egmond

Date: 11 April 2018
Time: 11:00 - 12:30
Location: Aula, building 362, Gen. Foulkesweg 1, Wageningen

Dissertation title: 

Alternative application of salinity gradient eenergy systems

Group: Wageningen University, Environmental Technology
Promotors: Prof.dr.ir. C.J.N Buisman
Copromotors: Dr.ir. H.V.M. Hamelers

Extra information:

Abstract:

A Concentration Gradient Flow Battery consists of a (R)ED stack with ion exchange membranes and two reservoirs containing salt water (typically NaCl). During charge (electrodialysis or ED) power is spent to separate the two solutions in one fresh solution and one concentrated solution using the (R)ED stack of membranes. Energy is now stored in a concentration gradient. During discharge the reverse process (reverse electrodialysis) takes place. Power is derived from the solutions from the (R)ED stack. In this way a battery is created. Since the battery uses environmental friendly, natural materials and is very safe it has potential to compete with existing electrical energy storage systems. This thesis explores the scientific, technological and economical aspect of this type of system.