Fraunhofer Research Institution for Energy Infrastructures and Geotechnologies IEGCold is abundantly available during the winter and transitional periods and represents a renewable resource. It can efficiently and sustainably meet the cooling demand, even being stored for year-round use. The MissEllyDEMO project aims to implement a connected adaptive cooling supply system, centered around the operation of an innovative ground probe cooling storage system that reliably captures the user's regular peak loads. This system will be developed in conjunction with conventional cooling generators such as free cooling systems, compression cooling systems, and a cold water storage tank as a demonstration facility at the project partner Voltavision's site in Bochum.
MissEllyDEMO
Research for Application
With the development of a digital twin, Fraunhofer IEG enables scalable representation of all relevant process phenomena in the occurring operational scenarios and structured optimization of operations. Theoretical preliminary considerations and scientific monitoring, which collects all necessary operational data, also contribute to this. This forms the basis for energetic and economic optimization using model predictive control approaches and ensures the transferability of the supply concept to other locations and application areas.
Benefits for Users and the Environment
The methods employed in the project help users save on electricity costs in operations and investment costs for air coolers, as capacities are designed not for peak loads but for average demand. This results in lower carbon dioxide emissions and fewer release opportunities for partially climate-damaging refrigerants.
The sub-project "Implementation and Optimization of a Geothermal Cooling Supply System" within the project "MissEllyDEMO - Multivalent Seasonal Geothermal Cold Supply" is funded by the Federal Ministry for Economic Affairs and Climate Action through the project sponsor Forschungszentrum Jülich GmbH with €2,091,004.94. The sub-project "Implementation and Demonstration of a Geothermal Cooling Supply System" receives €694,864.16.
The Predecessor Project
The feasibility analysis in the predecessor project MissElly, which runs until March 31, 2023, was funded by grants from the state of North Rhine-Westphalia using funds from the European Regional Development Fund (ERDF) 2014-2020, "Investments in Growth and Employment" in the climate protection competition "EnergySystemWandel.NRW." The funding ID was: FKZ-EFRE: EFRE-0801925;
https://www.ieg.fraunhofer.de/de/referenzprojekte/misselly.html
Schematic representation of the concept of a cooling storage system: The chessboard-patterned ground cooling probes can be selectively controlled to optimize the distribution of cold in the subsurface and the response behavior for the application case.
Bundesministerium für Wirtschaft und Klimaschutz BMWK - Federal Ministry of Economics and Climate Action BMWK