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ENERGY MANAGEMENT KURT BRANDL – VAMED-KMB


Meeting the goals set for energy efficiency


The Vienna General Hospital, one of Europe’s largest healthcare facilities, was opened to the public in 1994 and has been in full operation since 1996. VAMED-KMB Hospital Management and Technical Operations Management is responsible for its technical operations management.


From the beginning, the Vienna General Hospital and VAMED-KMB have both strived to save energy and continuously reduce energy demand by implementing the Energy Efficiency Programme. A common goal for climate protection was defined formally in an EFQM-based model of partnership called ‘Platform Technology for People’, which emphasises the ecological and social responsibility of the partners. The common goal of climate control


was defined as the ‘master project goal’ based on the Kyoto-Protocol, which aimed to reduce average emissions of the six greenhouse gases (carbon dioxide, methane etc) between 2008 and 2012 by around 5.2%, compared to 1990. The first project goal for the Vienna


General Hospital was to achieve a climate-adjusted reduction of direct and indirect greenhouse gas emissions by 15.6% until the end of 2012, which was three times the requested value of the Kyoto Protocol. 1996 – the first year of full operation was defined as the reference year. Due to new constructions and extensions, the General Hospital’s floor area increased by 8.2% from 1996 to 2007. Therefore, the first climate and floor area adjusted goal for reductions were defined at a value of 23.8%. New, more ambitious goals were set considering the annual investment possibilities. The ‘guideline’ for the year 2018 is currently at 25%. VAMED-KMB manages an object for


2007– 2014


1998– 2016


2005 2001 2001 1998


1996– 2016


1999 2009


Optimisation of variable air volume (VLV) – air conditioning system in building 10


Expansion energy monitoring


Adjustment of the supply water temperature curve for the AC after heaters


Optimisation of drinking water tracking on building basis


Optimisation of air conditioning central units in main building (4 central units)


Needs-based air humidification of the laboratories in building 24


Load management cooling: turbo, absorber and from 2009 on distant cooling


Optimisation air conditioning central sterilisation


District cooling 0 537,000 311,300 1,279,713 942,500 3,216,000


165,800 120,000 101,300


100,000 500,000 1,500,000 2,500,000 Annual saving (€) Figure 1: Ranking of optimisation projects according to the Pareto-Analysis. the Vienna General Hospital with


construction and equipping costs of €4.22 billion and ensures operational quality and asset value. This includes: l Building services equipment: €2.09 bn. l Medical engineering: €0.52 bn. l Structural engineering €1.61 bn. l 52,800 medical devices and components.


l A building management system with 116,000 data points including fire protection system.


l 1,685 air conditioning and air handling units.


Kurt W. Brandl


Since 2015 Kurt W. Brandl has been energy auditor according to the Austrian Energy Efficiency Act. He has


been head of the performance center Central Control Room and Energy Management since 2004. He is energy commissioner for VAMED-KMB at the Vienna General


Hospital and head of the Vienna General Hospital’s energy efficiency program, which is a service by VAMED-KMB.


l 135 elevators, 10 travelators and two escalators.


l One automatic container transport system with up to 2,000 transports per day.


l One automatic small container transport system with up to 3,000 transports per day.


l 110 cooling, freezing and incubator rooms.


l Nine emergency power diesel sets (total power output: 20 MW).


l Water, steam, compressed air and gas supply systems.


l Pneumatic refuse collection system, paper and cardboard compactor.


l Fire alarm system with 36,000 automatic fire detectors. l 60,000 sprinkler heads.


The building services devices with a constructional value of €2.09 billion in particular, are relevant for energy management. More than 1,600 air conditioning and air handling units condition about 7.5 m3


in full operation. Approximately 1,850 66 IFHE DIGEST 2017 3,500,000


air per hour when


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