Energy efficient daylighting solutions trends and chances 3 rd VELUX Daylight Symposium Rotterdam Wilfried Pohl

Transcription

1 solutions trends and chances 3 rd VELUX Daylight Symposium Rotterdam Wilfried Pohl 1

2 Philosophy Energy Day- and efficient Artificial daylighting Lighting 2

3 Facade > thermal & visual comfort Daylight: Luminance Distribution View to outside Sunshine Indoor gains: Tools Persons Artificial light Climate: Air temperature indoor Surface temperature Humidity Air speed Heating from luminaire Daylight distribution Luminance Humidity Sunshine Light/Heat Heating from electronical devices Heating from persons Air temperature Air speed Surfaces temperature 3

4 Daylight systems View to the outside Glare protection Light redirection in room depth > no artificial light Sun shading > minimize mechanical cooling 800 W/m² 100 W/m² E 500lx avoid glare: L window ~ 400 cd/m² 4

5 Solar gains > cooling and heating Artificial light ~ 140W sun ~ 1.800W Persons 6% Artificial light 8% Compute 9% g = 30% EDV ~ 210W persons ~ 140W Solar gain 77% facade ~12m² room ~20m² 5

6 Angle dependent g-value Berlin - South facade - only Sun 6

7 Solar gains Berlin - South facade - only Sun 7

8 Trends Energy Day- and efficient Artificial daylighting Lighting 8

9 Trends in lighting 9

10 Light Vision and Health Vision (information) visual effects feelings (mood) health non visual 10

11 Light is the most important timer Custom made spectra for different applications (activities) and individual preferencies more daylight (biological we live in darkness) in buildings? more artificial light? 11

12 Light & Health 12

13 Energy performance of buildings Directive (EPBD 2002/91/EC 13

14 EN15193 Energy and Lighting Energy performance of buildings Energy requirements for lighting energy consumption comfort categories quality class * basic Buildings ** good *** comprehensive Controls (daylight and artificial light) is described by dependency factors : Daylight dependency factor F D,n Occupancy dependency factor F O Constant illuminance factor F C 14

15 EN15193 Power limits Limits for connected lighting power (in W/m 2 ) according to EN15193 for different building types and quality levels. 15

16 EN15193 Energy limits Limits for energy consumption (in kwh/m 2 year) according to EN15193 for different building types and quality levels 16

17 System and Project Examples Energy Day- and efficient Artificial daylighting Lighting 17

18 ZVK Wiesbaden 18

19 ZVK Wiesbaden 19

20 ZVK Wiesbaden 20

21 ZVK Wiesbaden 21

22 Bayerische Bauindustrie Sonne Vertikale Umlenklamellen Sonne Vertikale Umlenklamellen Bayerische Bauindustrie, München Architects: Reichenbach-Klinke + Schranner 22

23 Bayerische Bauindustrie 23

24 Bayerische Bauindustrie 24

25 Bayerische Bauindustrie 25

26 Projektbeispiel: SBV Biel 26

27 Projektbeispiel: SBV Biel 27

28 Genzyme 28

29 Genzyme 29

30 Genzyme 30

31 Genzyme 31

32 Genzyme 32

33 Genzyme 33

34 Genzyme 34

35 Genzyme Daylight utilization: more than 90% of working spaces Low energy consumption: 42% less than those of a comparable conventional building Award: LEED-Green Building Rating System (USGBC) Platin Award 35

36 Changi airport, Singapur 36

37 Changi airport 37

38 Changi airport Detail Skylight 38

39 Changi airport Daylight utilization 39

40 Changi airport Artificial light 40

41 Changi airport 41

42 Changi airport 42

43 Underground Parking: Sun spots 43

44 ADASY Sunlighting system System concept Sun catcher 44

45 ADASY Sun collector optics (T - CPC) shift dy dx 45

46 ADASY Sun collector optics (T - CPC) 46

47 Madrid, sun illuminance T-CPC plane, south-facade ADASY: Prototype and Real System / WP, RT, CKn, PT, VS

48 Real system, tube with 4 luminaires ADASY: Prototype and Real System / WP, RT, CKn, PT, VS

49 Prototype, tube with 4 luminaires; τ (luminaires) luminaire 1 luminaire 2 luminaire 3 luminaire 4 ADASY: Prototype and Real System / WP, RT, CKn, PT, VS

50 System example: Light tube 50

51 Heliostat technology 51

52 Sun Illumination UFO Project (ERK6-CT ) Optical tracking sensor protection funnel Cooloing loops, heat exchanger Focal point 4 Segment Fresnel Lense liquid lightguide Heliostat development in cooperation with Bomin Solar (Lörrach, Germany) 52

53 Sun Illumination Heliostat Project (JOR3-CT ) Heliostat Redirection Mirror Concentrator Light Pipe and 90 - Redirector Sun Luminaire 53

54 Sun Illumination Heliostat Project (JOR3-CT ) 54

55 New building concepts 55

56 New building concepts 56

57 New building concepts 57

58 Thank you! Bartenbach LichtLabor / Aldrans, Innsbruck 58