1. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Field Experience with the HVAC-System of the Flemish Institute for Biotechnology Building at the Ghent University M. De Paepe, B. Raeymaekers, Ch. T’Joen

2. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Introduction Field study on the new building of the Flemisch Institute for Biotechnology (VIB)

3. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Building Lay Out & data 3 floors – 36 m wide 300 people 13000 m² - 8000 m² laboratories HVAC system : summer 18°C/>30% winter 21.5°C/>30% Heating : condensing boilers (gas) Cooling : two screw compressor machines Humidification : vapor injection, gas fired boiler Patio N West Wing East Wing Main Building

4. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Energy Use - 2004

5. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Cooling system

6. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Measurements – January 2005

7. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Measurements – April-May 2005

8. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Measurements – April-May 2005

9. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Cooling system

10. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Free cooling - COP

11. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Free cooling – Plate Heat Exchanger

12. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Free cooling – Design errors Plate heat exchanger : design 1307 kW operation 200 kW Effectiveness : 0.37 Ice water temperature : design 4 °C operation 1°C Use of large cooling tower : high fan and pumping power

13. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Simulation of amelioration

14. Ghent University - UGent Department of Flow, Heat and Combustion Mechanics www.FloHeaCom.UGent.be Conclusion Measurement campaign on high technology laboratory building Part load – Full load Free cooling system, low performance Changes in the design could give bether performance Future : follow up of changes