Multifamily residence in Zoerle Parwijs
Zonnige Kempen, a social building development company, has built thirteen social dwellings at Zoerle Parwijs. They wanted to gain as much solar energy as possible for heating and hot water supply. That's why they chose to install a water-to-water heat pump, combined with ground storage, an asphalt collector and solar thermal collectors. This project received subsidies from the Flemisch governement as a demonstration project.
| Country | Belgium |
| City | Zoerle Parwijs |
| Client name | Zonnige Kempen |
| Application area | Building sector |
| Building type | Multifamily residence |
| Year of construction | 2007 |
| Heat source/sink | Water/Water |
| Heat pump type | Electric heat pump |
| Year of installation | 2007 |
| Purpose | Heating and hot water |
| Heat source system | Borehole heat exchanger (vertical) |
| Operation mode | Bivalent |
| Refrigerant | R134a |
| Contact name | Hans Hoes |
| Contact E-mail | hans.hoes@vito.be |
| Contact website | http://www.vito.be |
| Supported by | the Flemisch governement as a demonstration project |
Project description
Building, overall energy concept
- Thirteen social dwellings
- Low temperature heating: floor heating
- Central heating and hot water production
- Photovoltaic installation
- Balanced ventilation with heat recovery
Heat pump system
- Electrical heat pump, water-to-water
- Heating capacity 45 kW
- BTES field (Borehole Thermal Energy Storage), 54 vertical heat exchangers
- Asphalt collector 500 m²
- Solar thermal collectors, flat plate type 75 m²
Operation experiences
- Measurement campaign: This installation will be monitored over a period of one year.
- The monitoring results presented below focus on the first four months of operation in winter time (October 2007 - January 2008).
- In heating mode the heat pump covered 98 % of the daily heating load.
Diagr. 1: Balance of energy input (geothermal, electrical) and energy output (useful heat) for the period October 2007 through January 2008
Diagr. 2: Balance of heat delivery from GSHP, thermal solar and gas-fired boiler for the period October 2007 through January 2008
Diagr. 3: Primary energy savings by the use of a heat pump compared to a conventional heating system (gas-fired boiler)
Costs, economic efficiency, incentives
not available
Regulations, guidelines, benchmarking
not available
References
For more detailed information about the heat pump system and the asphalt collector click the following link:
Westerlo Zoerle-Parwijs Sint-Antoniusplein : 13 Low-energy dwellings
(click on "ENGINEERING TECHNIQUES")
| Design value | Measured data | |
|---|---|---|
| Year | 2004 | 2008 |
| Heating capacity (kW) | 45 | |
| SPF (Heating) | 3,5 | |
| Annual heat delivery (kWh/year)1 | 46.191 | |
| Annual CO2 emissions (kg CO2/year)2 | 1.100 |
1 Total heat demand: 47.192 kWh
2 Reduction of 8 % compared to reference
| Institution/Company | VITO - Flemish Institute for Technological Research |
| Responsibility/Function | Design BTES, asphalt collector, monitoring |
| Street/PoBox | Boeretang 200 |
| ZIP | B-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 |
