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Concrete core temperature control

Concrete core temperature control - The tubing lies stably between lower and upper reinforcement.

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The tube mats for concrete core temperature control have already been installed at the Solar Info Center (SIC) in Freiburg.
Figure 2: The first tube mats have already been installed at the Solar Info Center (SIC) in Freiburg, Germany. The various areas that can be individually regulated can be clearly seen.
Concrete is being laid at the Post-Tower in Bonn, Germany.
Figure 3: With the reinforcement and tube mats already installed, concrete is being laid at the Post Tower in Bonn, Germany.
Comparison of simulated room and slab surface temperatures for different cooling systems.
Figure 4: Comparison of simulated room and slab surface temperatures. The simulation shows the course of temperatures for four days in August 2004 with different systems for a room belonging to the Fraunhofer SOBIC in the Solar Info Center in Freiburg (SIC). CCTC = concrete core temperature control – here with a wet cooling tower.
The Energon passive office building is already heated and cooled with CCTC.
Figure 5: The Energon office building in Ulm, Germany: With a net floor area of almost 7,000 m², this is the world’s largest office building constructed according to the passive house concept. This is an EnBau model project and is cooled and heated with CCTC.
Vor- und Rücklauftemperaturen in den Erdsonden sowie Erdtemperaturen verschiedenen Tiefen im Jahresverlauf 2004 und 2005 für das Gebäude Energon in Ulm.
Figure 6: Supply and return temperatures in the borehole heat exchangers as well as the ground temperatures at various depths over the course of the years 2004 and 2005 for the Energon building in Ulm, Germany.
Heiz- und Kühlarbeit der Erdwärmesonden für zwei exemplarische Winter- und Sommertage.
Figure 7: Heating and cooling performance of the borehole heat exchangers for two typical winter and summer days.
Das Gebäude BOB in Aachen ist ein EnBau-Modellprojekt und wird im Winter mit Erdwärmesonden und Wärmepumpe beheizt.
Figure 8: The Balanced Office Building (BOB) in Aachen is an EnBau model project and is heated with 28 borehole heat exchangers and a heat pump in winter.
Gemessene Energieverbrauchswerte für das Gebäude BOB in Aachen für das Jahr 2005
Figure 9: The measured energy consumption values for the BOB building in Aachen for 2005. Primary energy factor of electricity = 3.0.
Thermischer Komfort mit der Betonkerntemperierung im Vergleich
Figure 10: Thermal comfort for two EnBau model projects (Energon in Ulm and BOB in Aachen). This shows the measured mean (operative) room temperature of the offices during working hours for 2005.