The design for the SRH-Campus envisions as a first step the construction of a hybrid building for housing and sports facilities. It serves as a reference for the further development of the Neckarbogen site.
The complex for work, leisure, learning and living consists of two structures connected by an atrium. The atrium allows visual references to the upper floors as well as the basement with a climbing wall. A swimming pool is located on the first floor. In the residential tower there are apartments of different sizes in wooden element construction. A community terrace integrates both lounge and sports areas and offers views over the entire campus.
For the design, Transsolar performed thermal simulation of each area to evaluate thermal comfort and energy consumption. Detailed variant studies were conducted for the swimming pool to determine the energy savings potential of a nighttime cover. This was the basis for an energy concept of the whole building for the building operation including heating, cooling, ventilation, lighting and user electricity.
District heating and district cooling are to supply the building. A separate chiller is used for cooling and dehumidification of the ventilation systems in the basement building, as the temperature level of the local cooling is not sufficiently low. Therefore, an additional heat pump/chiller is planned to provide this temperature level. This heat pump is also used in different operation modes. For example., to enable parallel heating and cooling. As an energy source, it also uses local cooling to reduce the temperature swing, which enables more efficient operation.
Local and renewable electricity for direct use is provided by photovoltaics on the roofs of the residential tower and part of the main building, covering about 18% of the building's electricity consumption.
The apartments receive underfloor heating and cooling. Due to the high outdoor noise level, all apartments will be connected to a central mechanical ventilation system with heat recovery, which is cooled via local cooling in summer. This hotel-like concept allows very good thermal comfort but is also linked to a corresponding energy consumption.
The indoor swimming pool will receive central mechanical ventilation with supply and exhaust air with effective heat recovery and will be heated via air, underfloor heating and underfloor convectors on the facades.
The fitness area will be supplied with fresh air and partially conditioned with a supply and exhaust air unit. An effective heat recovery unit and a heating and cooling ceiling is planned. Opening dampers in the support area of the fitness room will allow cross ventilation for shock and night ventilation. The fitness room is to receive external solar shading.
Cross ventilation in the classrooms supports shock ventilation and night flushing and is provided by supply air dampers in the façade and an exhaust stack. Underfloor heating will temper the space.