A numerical study of the Ecovat with IFISS

Climate change is a much-discussed topic nowadays. A shift from traditional fossil fuels to renewable ‘green’ energy is happening on a large scale. The production of this renewable energy such as solar energy and wind energy cannot be controlled by human activities, which results in either too much or too little energy produced at each moment in time. The Ecovat offers a solution to this problem by using thermal energy storage. Water is stored in layers of different temperatures in a closed, subterranean vessel. Energy can be stored and extracted by charging and discharging at different temperatures on multiple possible places in the wall of the vessel. It is paramount that the heat stratification stays intact in order for the Ecovat to function optimally.