Hospital in Antwerp
This case study concerns the operational experiences and the excellent results on a Belgian ATES system (Aquifer Thermal Energy Storage) that has been monitored for three years at the “KLINA”-hospital and where an extensive data set is available. Typically, information on energy transfer and consumption, flow rates, temperatures and pressures is obtained. This information is compared with a predefined “reference” installation, existing of contemporary energy systems. This allows to define the actual energy savings and to make a result based cost-benefit analysis.
| Country | Belgium |
| City | Antwerp |
| Client name | AZ KLINA |
| Application area | Building sector |
| Year of construction | 2000 |
| Heat source/sink | Water/Water |
| Heat pump type | Electric heat pump |
| Year of installation | 2000 |
| Purpose | Heating and cooling |
| Heat source system | Aquifer/wells |
| Distribution system | fan coil units radiators |
| Design heating temperature | supply: 0°C return: 0°C |
| Design cooling temperature | supply: 0°C return: 0°C |
| Operation mode | Bivalent |
| Refrigerant | R22 |
| Alternative/ complementary heating system | gas boiler, existing |
| Contact name | Hans Hoes |
| Contact E-mail | hans.hoes@vito.be |
| Contact website | http://www.klina.be |
Project description
Building, overall energy concept
- Hospital, built in 2000
- 400 beds
- Located in Antwerp, Meteonorm Uccle
- Heating demand: 400 kW / Cooling demand: 1.250 kW
- Air handling units at low temperature
- Supplemental radiators at high temperature heating with boilers
Heat pump system
- Electic heat pump, ground water
- 2 heat pumps, heating capacity 195 kW each
Operation experiences
- measurement campaign (VITO, 3 heating and cooling seasons)
- pretty difficult start (2000-2002), but eventually a very performant system
Costs, economic efficiency, incentives
- investment cost total HVAC-system € 755.621,60
- total economic savings (heat pump+ATES) € 34.537,56
- Simple pay back time 9,6 years without subsidy or any other financial support
- financial support (demonstratiesteun) 35%
Regulations, guidelines, benchmarking
not available
References
- Experiences with ATES applications in Belgium / H. Hoes, J. Desmedt, N. Robeyn, J. Van Bael.
Ecostock Thermal Storage here and now - 2006 - Editor: Styles, L Stockston College, Pomona,NJ(USA), 2006 - Experiences on sustainable heating and cooling with an aquifer thermal energy storage system at a Belgian hospital / J. Desmedt.
Clima 2007, Helsinki(Finland), 2007-06-10 - 2007-06-14
| Design value | Measured data | |
|---|---|---|
| Year1 | 2000 | 2005 |
| Heating capacity (kW) | 400 | |
| Cooling capacity (kW) | 1.250 | |
| SPF (Heating)2 | 5,5 | |
| SEER (Cooling)3 | 14,8 | |
| Annual heat delivery (kWh/year)4 | 950.000 | |
| Annual cooling delivery (kWh/year)5 | 600.000 | |
| PER (Heating /Cooling)6,7 | 1,18 | |
| Annual CO2 emissions (kg CO2/year)8 | 200.000 |
1 2003-2005 (3 heating cooling seasons)
2 VITO
3 VITO
4 VITO
5 VITO
6 Primary Energy Ratio: Useful heating (and cooling) energy delivered / primary energy input (kWhUE / kWhPE)
7 VITO
8 VITO
| Institution/Company | VITO - Flemish Institute for Technological Research |
| Responsibility/Function | Monitoring by order of the Flemish Government |
| Street/PoBox | Boeretang 200 |
| ZIP | 2400 |
| City | Mol |
| Country | Belgium |
| Contact Person | Hans Hoes |
| Phone/Fax | +32 14 33 59 14 |
| hans.hoes@vito.be | |
| Website (URL) | http://www.vito.be |
