OFFICE BUILDING FOR RIJKSWATERSTAAT WITH HEAT PUMP AND NATURAL VENTING SYSTEM IN TERNEUZEN - NL | | Project | Fact sheet | FP4 | CORDIS

Objective

Optimisation in functional design, the use of sustainable materials, maximisation of individual control and maximum use of natural forces, resulting in a new office building with a gross total floor area of 1750 m² for the housing of 50 employees, which combines:
- low energy consumption (heating and cooling by heat pump, PV cells, solar collector for DHW, low energy content of used materials, compact building envelope, high insulation level);
- low water consumption (use of greywater circuit, purifying of waste water);
- sustainable material use (low environmental harm, low emissions, use of recycled materials);
- good indoor environment (thermal comfort, low temperature, radiation heat, natural forced ventilation system, humidity/dust control by plants, individual controls, use of daylighting);
- minimal affection of outdoor environment (green roof, minimal paved area, diversity in plantation);
- preference will be given to environmentally friendly materials and use of an energy environmental contract for the evaluation of the results.

The expectations of these objectives are:
- 16700 m³ saving of natural gas/year;
- 43800 kWh saving of electricity/year;
- high indoor air quality and thermal comfort;
- minimum affection of the environment;
- 15% cost reduction at long term.
The estimated pay-back is 11.9 years based on total investment of 3.112.880 ECU
The architectural design is adjusted and optimised on behalf of the aims of the project. Definite energy and daylight calculations are available. Test are made of the comfort of the natural air supply in the offices. In some cases comfort problems can be expected. For this reason extra provision in the sealing will be added. Calculation of overheating are available. In some situations overheating is a problem. These results will be used for the programming of the BMS and in the directions for use.
1. The innovative energy technologies are:
- extra insulation (envelope, materials, windows);
- heat pump system on canal water with low temperature distribution system;
- high efficient lighting (HF gas charge lamps) and controls;
- natural venting system controlled by BMS;
- improved air tightness of the envelope is mainly determined by quality of execution;
- PV-system.
2. Context:
The gross floor area of the chosen design is 1750 m². The design was also appointed as national example for sustainable building.
Important in the energy supply for the building was the choice for a monovalent system (only electricity) and the use of canal water as a source for the heat pump.
3. Economic aspects of the technology. Savings:
- insulation: 4370 m³ gas (3.2 m³/m² gross floor area)
- heatpump : 29300 kWh extra electricity (27.7 kWh/m² gross floor area), 12330 m³ gas saving (9.1 m³/m² gross floor area), no connection to gas grid necessary.
- lighting: 52820 kWh electricity (39.1 kWh/m² gross floor area)
- venting: 11923 kWh electricity
- air tightness: 5410 kWh electricity
- PV: 5000 kWh electricity
The extra investments for the energetic features is 202.400 HFL. The energy savings are 17.000 HFL/year.

4. Monitoring:
The monitoring will include special attention to environmental targets. All environmental and energy aspect are contractual established in the pre-design phase. Within the assignment all specific targets are quantified and qualified. During and after the design process these targets are monitored. In this way the focus on environmental and energy aspect is optimally controlled.

Fields of science

Programme(s)

FP4-NNE-THERMIE C - Specific programme for research and technological development, including demonstration in the field of non-nuclear energy, 1994-1998

Topic(s)

10.1 - BUILDINGS

Call for proposal

Data not available

Funding Scheme

DEM - Demonstration contracts

Coordinator

RIJKSGEBOUWENDIENST DIRECTIE ZUID-WEST

EU contribution

No data

Address

OVERSCHIESEWEG 306
3112 NC SCHIEDAM
Netherlands

Total cost