Field Experience with the HVAC-System of the Flemish Institute for Biotechnology Building at the...
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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
description
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. Introduction. Field study on the new building of the Flemisch Institute for Biotechnology (VIB). West Wing. East Wing. Patio. - PowerPoint PPT Presentation
Transcript of Field Experience with the HVAC-System of the Flemish Institute for Biotechnology Building at the...
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 UniversityM. De Paepe, B. Raeymaekers, Ch. T’Joen
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)
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
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Energy Use - 2004
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Cooling system
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Measurements – January 2005
100
200
300
400
18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00 18:15:00
Time [h]
Pow
er [k
W]
0
2
4
6
8
10
CO
P [-]
Cooling load [W] Electric power [W] COP cooling machine [-] COP cooling installation [-]
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Measurements – April-May 2005
0
5
10
15
20
25
30
35
14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00 14:20:00
Time [h]
Tem
pera
ture
[°C
]
Condenser Outlet Condenser outlet Evaporator inlet Evaporator Outlet
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Measurements – April-May 2005
100
200
300
400
500
600
700
15:00:00 15:00:00 15:00:00 15:00:00 15:00:00 15:00:00 15:00:00
Time [h]
Pow
er [k
W]
0
1
2
3
4
5
6
7
8
9
10
CO
P [-]
Cooling Load [W] Electric Power [W] COP [-] COP cooling installation [-]
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Cooling system
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Free cooling - COP
Fanspumps PPQ
COP
100
200
300
400
0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00
Time [h]
Pow
er [k
W]
0
1
2
3
4
5
6
7
8
9
10
CO
P [-]
Cooling Load [W] COP [-]
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Free cooling – Plate Heat Exchanger
0
1
2
3
4
5
6
7
8
9
10
0:00 0:00 0:00 0:00
Time [h]
Tem
pera
ture
[°C
]
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Hea
t Exc
hang
er E
ffect
iven
ess
[-]
Ice water, in Ice water, out Cooling water, in Cooling water, out Effectiveness
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Free cooling – Design errors
• Plate heat exchanger : design 1307 kWoperation 200 kW
• Effectiveness : 0.37• Ice water temperature :
design 4 °Coperation 1°C
• Use of large cooling tower : high fan and pumping power
Ghent University - UGent Department of Flow, Heat and Combustion Mechanics
www.FloHeaCom.UGent.be
Simulation of amelioration
18%
28%
1%14%1%
2%
36%
Lighting
Electrical appliances
Heating support system
Cooling
Cooling towers
Pumps
Fans
20%
30%
1%7%1%
2%
39%
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
