Indoor Environment Quality and Human Performance

Transkript

1 Indoor Environment Quality and Human Performance Scientific and Technical Approaches Auf Wissen bauen

2 Fraunhofer Society Itzehoe Lübeck Rostock employees Budget 1.8 bn Approx. 60 institutes in DE 36 Branch offices in Asia Australia Europe Middle East North America South America Bremerhaven Oldenburg Bremen Hannover Berlin Potsdam Teltow Braunschweig Magdeburg Cottbus Oberhausen Paderborn Halle Dortmund Schkopau Leipzig Duisburg Kassel Schmallenberg Dresden St. Augustin Erfurt Jena Aachen Freiberg Euskirchen Gießen Chemnitz Wachtberg Ilmenau Darmstadt Würzburg Bayreuth Erlangen Bronnbach St. Ingbert Kaiserslautern Fürth Nürnberg Saarbrücken Karlsruhe Pfinztal Ettlingen Stuttgart Straubing Freising Freiburg Augsburg Garching München Oberpfaffenhofen Holzen Prien Efringen- Holzkirchen Kirchen

3 Fraunhofer IBP Itzehoe Lübeck Rostock Acoustics Building Chemistry, Biology and Hygiene Energy Systems Heat Technology Hygrothermics Indoor Climate Life Cycle Engineering Bremerhaven Oldenburg Bremen Hannover Berlin Potsdam Teltow Braunschweig Magdeburg Cottbus Oberhausen Paderborn Halle Dortmund Schkopau Leipzig Duisburg Kassel Schmallenberg Dresden St. Augustin Erfurt Jena Aachen Freiberg Euskirchen Gießen Chemnitz Wachtberg Ilmenau Darmstadt Würzburg Bayreuth Erlangen Bronnbach St. Ingbert Kaiserslautern Fürth Nürnberg Saarbrücken Karlsruhe Pfinztal Ettlingen Stuttgart Straubing Freising Freiburg Augsburg Garching München Oberpfaffenhofen Holzen Prien Efringen- Holzkirchen Kirchen

4 Facts Open plan offices and cube farms Loss of privacy Standardised indoor climate vs. individual climate Thermal discomfort Acoustic problems Perceived air quality Poor lightning Wages vs. rent and energy costs

5 Green Buildings Typical costs for employees, rent and energy Increase in productivity: 0,5 1 % energy costs 5 10 % rent Source: Ydelson J.: The Green Building Revolution, 2006.

6 A scientific approach High Performance Indoor Environment HiPIE

7 HiPIE

8 HiPIE New materials and technologies Human-Environment-Interaction-Model physiological modeling, building-simulation, tools User performance temperature, light, IAQ,... Ideal environment for offices, hotels, health care centers, schools Increase of the market-value

9 HiPIE Intelligent products and surroundings to support individual performance acoustic sound, noise olfactory odour (redolence, smell), pheromones tactile air speed, vibrations, temperature visual lighting, colours hygric moisture/humidity

10 HiPIE HiPIE Acoustics Lightning Indoor air quality Indoor climate Performance / productivity

11 Acoustics Acoustics Noise reduction Speech intelligibility

12 Acoustics and performance testing lab

13 Correlation between speech transmission index STI and individual cognitive performance A highly significant correlation (r =.930, p.01) between the STI and individual cognitive performance exists (n = 24). Percentage of errors (M; SE) during processing of a short-term memory task

14 Acoustics Acoustics Noise reduction Speech intelligibility Absorbers

15 Micro-perforated sound absorbers Sound and lighting Micro-perforated foils for lamps and daylight control

16 Acoustics Acoustics Noise reduction Speech intelligibility Absorbers New construction materials

17 Lightning Lightning Glare reduction Sufficient light intensity Daylight usage New technologies

18 Indoor Air Quality Indoor air quality VOCs

19 Indoor Air Quality Indoor air quality VOCs Perceived air quality / odour

20 Indoor air quality / odour Please evaluate the odour of the sample air by scoring the following categories: acceptance odour intensity hedonic odour tone Please describe the odour quality, if possible:....

21 Indoor Air Quality Indoor air quality VOCs Perceived air quality / odour Multifunctional components

22 Indoor air quality

23 Indoor Air Quality Indoor air quality VOCs Perceived air quality / odour Multifunctional components Adsorbers Sensors

24 Indoor air quality - sensors

25 Indoor air quality microbiology and hygiene Microbiology of surfaces, materials, liquids, air Microbiological characterisation of construction materials Qualitative and quantitative microbiological analyses: detection, long- and short time measurements Morphological, physiological and genetic characterisation - Taxonomy Collection of reference organisms

26 Indoor Climate Indoor climate Air exchange rate

27 Indoor climate: air exchange rate

28 Indoor Climate Indoor climate Air exchange rate Carbon dioxide

29 c (CO2) [ppm] Indoor climate: carbon dioxide Professional school, Munich (March 2009) 34 students, fully occupied :00 8:30 9:00 9:30 10:00 10:30 Uhrzeit [-]

30 Indoor Climate Indoor climate Air exchange rate Carbon dioxide Humidity Thermal comfort Personalised climate

31 Indoor climate

32 Performance Productivity Performance and productivity Test methods Psychoacoustics How to measure productivity improvement?

33 HiPIE HiPIE - Summary New scientific approaches Improved/new construction materials Less user complaints Better user performance Higher value