SLIDE 1
Energy Efficient and Healthy Buildings
Monica Gullberg, ÅF process Magnus Bengtsson, National Board of Housing, Building and Planning Nikolaj Tolstoy, National Board of Housing, Building and Planning Egil Öfverholm, Swedish Energy Agency
SLIDE 2 Purpose - energy
- Evaluate existing measures
- Find new efficient measures
- Survey energy demand and find efficiency potentials
- Make better forecasts for energy demand and CO2
emissions
- Develope basic data for the buildings performance
directive
- Information activities on energy efficiency in buildings
- etc…
SLIDE 3 Other appliances; 3,76kWh/m
2; 4%
Kitchen; 10,81kWh/m
2; 11%
Computerhall & server; 0,10kWh/m
2;
0% Lighting; 19,80kWh/m
2; 21%
Other building installations; 3,21kWh/m
2; 3%
Heat pumps 1,26 kWh/m
2; 1%
Electric heating; 34,76kWh/m
2; 37%
Fans; 18,04kWh/m
2;
19% Cooling machines; 0,04kWh/m
2; 0%
PC; 1,43kWh/m
2; 1%
Miscellaneous; 5,28 kWh/m
2; 5%
Electricity demand - Schools
SLIDE 4 50 100 150 200 250 300 350 [kWh/m 2, year] Miscellaneous, others Apparatus, miscellaneous Building installations, miscellaneous Refrigeration PCs Large computer/servers Fans Lighting
Electricity demand
SLIDE 5 10 20 30 40 50 60
[kWh/m 2, year] Lighting, annual specific electricity [kWh/m2], distribution and mean.
SLIDE 6 Energyefficiency possibilities
SLIDE 7 Energyefficiency possibilities
9,2 kWh/m2 Air changes 2,9 kWh/m2 SFP 8,2 kWh/m2 Operation h.
SLIDE 8
Purpose of the environment survey
– Enable follow up of the in-door environment in comparison to the building regulations – Search for a connection between energy use and in-door environment – Gain experience for similar future studies that are under way
SLIDE 9 Indoor environment in STIL-2
- Survey
- Questionnaires'
- Long-term measurements
– Radon – Temperature, indoor and out – Relativ humidity, indoor and out
SLIDE 10
– Magnetic fields – Lighting – Legionaries decease – Sound – Moisture – Air quality – Thermal environment – Cleaning efficiency
Indoor environment, eight gradings of the technical status
SLIDE 11
– Personal data – Working environment – Working conditions – illness/ailments – School environment
Questionnaires
SLIDE 12 Result indoor environment
Average grading for each school, average 3,33; weighted national average 3,88
0,00 0,50 1,00 1,50 2,00 2,50 3,00 3,50 4,00 4,50 Medelbetyg
SLIDE 13
Result indoor environment
SLIDE 14
Result questionnaire
SLIDE 15
Pearson correlation analysis
Building, year + installation year Area/pupil Pupils/teachers Teachers/employees Pupils Total energy Average score Lighting Lighting Complaints Window area Noise Noise SFP+airflow + op. hours Air Quality Air Quality U-value, average Thermal Air Climate Thermal Climate Audit energy Audit Indoor climate User response
SLIDE 16
Pearson correlation analysis
Building, year + installation year Area/pupil Pupils/teachers Teachers/employees Pupils Total energy Average score Lighting Lighting Complaints Window area Noise Noise SFP+airflow + op. hours Air Quality Air Quality U-value, average Thermal Air Climate Thermal Climate Audit energy Audit Indoor climate User response
SLIDE 17
Pearson correlation analysis
Building, year + installation year Area/pupil Pupils/teachers Teachers/employees Pupils Total energy Average score Lighting Lighting Complaints Window area Noise Noise SFP+airflow + op. hours Air Quality Air Quality U-value, average Thermal Air Climate Thermal Climate Audit energy Audit Indoor climate User response
SLIDE 18
Pearson correlation analysis
Building, year + installation year Area/pupil Pupils/teachers Teachers/employees Pupils Total energy Average score Lighting, kWh/m2 Lighting quality Complaints Window area Noise Noise SFP+airflow + op. hours Air Quality Air Quality U-value, average Thermal Air Climate Thermal Climate Audit energy Audit Indoor climate User response
SLIDE 19
Pearson correlation analysis
Building, year + installation year Area/pupil Pupils/teachers Teachers/employees Pupils Total energy Average score Lighting, kWh/m2 Lighting quality Complaints Window area Noise Noise SFP+airflow + op. hours Air Quality Air Quality U-value, average Thermal Air Climate Thermal Climate Audit energy Audit Indoor climate User response
SLIDE 20
No contradiction between good indoor environment and energy efficiency
SLIDE 21
More info can be found at: www.energimyndigheten.se
