District heating storage Dolderweg, Basel

The building is to be converted into a district heating storage facility for IWB. The official requirement is that the groundwater should not heat up during use of the facility. Using CFD simulations, heat losses from the tanks and the heat flow into the ground are to be analysed and compared for various scenarios. These scenarios include ventilation, insulation of the tank base and the different seasons.

Our services within the scope of the project are the creation of a 3D-CFD model of the building which includes the floor, ceiling and walls as well as the tanks with their insulation and the tank base, the planned ventilation and a certain floor depth down to the groundwater.

We also carried out CFD simulations, which record the air flows as well as the temperature distribution within the building.

Finally, we carried out a simulation of the 3D heat conduction within the solids. The solids include the tank wall and base, the insulation as well as the side walls, ceiling and floor. Using the simulation, we performed thermal calculations of the ground heat.

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