MoGeSoWa

In the MoGeSoWa project, a powerful, cost-efficient and modular heat storage system was developed. A prototype suitable for direct industrial application is currently being demonstrated in a multi-family house with more than 70 residential units to increase the energy efficiency of combined heat and power plants.

A prototype of the modular heat storage system is currently being demonstrated in a multi-family house with more than 70 residential units to increase the energy efficiency of combined heat and power plants (CHP). For this purpose, surplus heat from a mini-CHP unit with an output of 20 kW_electric and 40 kW_thermic is stored in order to provide heat energy for the heating of the building and thus to reduce the primary energy consumption.

During sorptive heat storage, energy is stored as chemical-physical potential. Heat is released in a subsequent reversible interaction between a porous solid and a fluid, also referred to as an adsorption process. This principle enables the decoupling of heat supply and demand. Compared to conventional storage systems, the sorptive heat storage offers enormous advantages: Storage densities are 3 – 6 times higher and thus considerably more compact systems are possible, heat losses are minimized and the temperature levels can be adapted to specific supplies and applications (80 – 300°C).

A further advantage is that there is also a cooling effect, which can be used technically: When the hygroscopic zeolite binds water vapor in its pores (where heat is released), on the side of the water tank (where water is evaporated), evaporation cooling occurs, which can be used for cooling.

The MoGeSoWa project is funded by the German Ministry for Economic Affairs and Energy (BMWi).