Presentation Title Date xx, 2004

1
LA FABRICA DEL SOL, BARCELONA, SPAIN Josep Puig,
Aniol Esquerra ECOSERVEIS
Building and Use
Heating Cooling System
Heat Pump
La Fabrica del Sol
Complete heating and cooling system at La
Fabrica del Sol
The building is heated and cooled using the
ground source heat pump prototype developed by
CIAT for the Ground-Med project. CIAT HP
CAPACITY 61 kW Eurovent Class A Tandem
compressors Temperature compensation function.
Air handling unit At a first stage the existing
AHU will be considered. Its specifications
are Model VAIRING VA-121-HAir filterWater
battery (75kW thermal in cold)Dimensioned for an
entrance water temperature of 7ºC and a thermal
rise of 5ºCVentilator 12.180 m3/h
Barcelona demo site PEAK LOAD (kW) PEAK DAY
SUMMER PEAK LOAD (kW) 43,6 12 August
WINTER PEAK LOAD (kW) 33,4 7 January
Circulation pumps selected Indoor
circuit Grundfos Magna 40-120F Single
phaseVariable velocity BHE circuit Grundfos
Magna 50-120F Single phaseVariable velocity
Ground Floor
La Fabrica del Sol is an old gas factory
currently used as a Demonstration Center.
Its being renovated, comprising workshop,
offices and social rooms for an information
centre for renewable energies. The area
conditioned is divided into 4 zones. Ground
Floor Area 375 m2
Water temperature conditions and nominal flow
rate according to design
SUMMER/WINTER Temperature
return from building (ºC) 15 35 Temperature
to the building (ºC) 10
40 Temperature return from ground (ºC) 27
15 Temperature to the ground (ºC)
32 10 Condenser capacity (kW)
71 68 Condenser water flow rate (m3/h)
12,2 11,7 Evaporator capacity (kW)
61 56 Evaporator water flow rate (m3/h)
10,5 9,7
Borehole Heat Exchanger
Energy performance
Heat Pump CIAT 61 kW Eurovent Class A Seasonal
performance factors calculated from laboratory
measurements using the methodology described in
the new standard ??14511 SCOP1 5,9 SEER1
6,7
Boreholes configuration
Energy Delivered
7 vertical Boreholes, Depth 110 m Spacing
6 m Single U, PE 100 of DN 40mm x 3,7
pipe Coverage 80 m
Monthly loads kWh
  Soil Parameters
Location type (rural, build up, field or paved) paved
General soil profile coarse sands and clay
Estimate of Conductivity 2,22 W/mK
Estimate of Volumetric Heat 2400 kJ/Km³
Freatic groundwater level 3,6 m