Client: Krankenhaus Rummelsberg GmbH
Architect: Ludes Architekten – Ingenieure GmbH
Project period: 2022 – 2027
Service: Planning and site supervision for sanitary systems, heating systems, ventilation and air-conditioning systems, cooling systems, laboratory gas supply, fire protection engineering, building automation systems
Net costs building services €: 19,000,000
Rummelsberg Hospital is a specialist clinic for orthopaedics, neurology and internal medicine in the Nuremberg, Fürth and Erlangen metropolitan region. With currently 275 planned beds, the hospital treats around 10,500 inpatients and 23,000 outpatients annually. Rummelsberg Hospital consists of two buildings: the Wichernhaus and the Laurentiushaus, connected by an elongated two-storey link. The Laurentiushaus is located in the northern part of the site, while the Wichernhaus is in the south.
A replacement building for the Wichernhaus will be constructed on the site. ZWP Ingenieur AG is responsible for the design and implementation of the technical building services in the trades listed above. The new Wichernhaus will comprise six storeys (two basement levels, ground floor, three upper floors) with rooftop technical centres, covering a gross floor area of approx. 22,500 m². In addition to two planned ward levels with approx. 130 beds, eight operating theatres are to be completed by 2027.
The energy concept was developed and coordinated in several steps with the client and project management. The heating capacity of approx. 1,500 kW is provided by a gas-fired combined heat and power plant, a gas condensing boiler and an air-to-water heat pump. The cooling capacity of approx. 1,200 kW is supplied by two compression chillers and the reversible air-to-water heat pump.
For room heating, radiators are predominantly used. Underfloor heating is installed in the foyer, and some patient rooms are equipped with concrete core activation. In addition, rooms are heated via preconditioned supply air. For room cooling in the medical areas, recirculating cooling units and induction outlets are used. At the request of the client, there will be no comfort cooling in the building. Cooling is therefore provided only for the medical areas and technical rooms with ooling requirements.
The supply and extract air for the rooms is provided by a total of eight air-handling units. Seven of the units are located in the rooftop technical centres above the third floor and supply all areas from the ground to the third floor. One unit is located in the second basement and supplies the two basement levels. The total circulated air volume is approx. 210,000 m³/h. All medical areas with corresponding requirements are equipped with medical oxygen (O2), medical compressed air (AIR5) and an anaesthetic gas scavenging system (AGFS). The fire protection engineering includes dry risers in the stairwells. In addition, two inert gas extinguishing systems using nitrogen are planned for the server rooms on the first basement level.
For the control and monitoring of the building services installations, an interoperable building automation system with the BACnet/IP communication protocol has been implemented. Operation and monitoring of the automation system is carried out via a web-based building automation management system (BACnet Operator Workstation).
Images: © LUDES Architekten – Ingenieure GmbH
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