CESIG Meeting OFFICE LIGHTING ENERGY DASHBOARDS. Prepared by: Casey Gaetz, LC

Transcription

1 CESIG Meeting OFFICE LIGHTING ENERGY DASHBOARDS Prepared by: Casey Gaetz, LC November 2015

2 Introductions Prism Engineering provides mechanical and electrical engineering services to improve building performance. We design and implement cost effective approaches to address comfort, efficiency and reliability.

3 Office Lighting Bit of History and where we are going 3

4 4

5 Design Options - MATCH the NEED 5

6 Traditional Office Lighting Lensed Troffers Direct / Indirect Deep Cell Parabolics 6

7 Newer Luminaires Recessed 2 x2 Luminaires 7

8 What About Glare? CSA/ISO Monitor Ratings Type I Diffuse Type II Semi-Specular Type III Specular Type I Type III 8

9 % Lumen Output Typical Lumen Maintenance Curves for Light Sources 105% 100% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 45% 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90, ,000 Operating Hours T8 Fluorescent LED (L70=50,000) LED (L70=50,000) Projected LED (L70=100,000) LED (L70=200,000) Metal Halide Metal Halide Projected 9

10 % Target Lumen Output 170% Typical Lumen Maintenance Curves for Light Sources 160% 150% 140% 130% 120% 110% 100% 90% 80% 70% 60% 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90, ,000 Operating Hours Target Lumen Output at 30,000 Hours LED (L70 = 50,000) LED (L70 = 100,000) Metal Halide T8 Fluorescent LED (L70=50,000) Projected LED (L70=200,000) Metal Halide Projected 10

11 Fluorescent CONTAINS SPIKES OF BLUE/GREEN/YELLOW/RED CFL T12, T10, T8 T5, T5HO Cold Cathode Efficacy - 35 to 105 lm/w 11

12 LED Monochromatic Directional Heat will kill them uses filters and coatings to create colours. Efficacy > 100 lm/w 12

13 Colour Rendering and R

14 What about Flicker and Strobe-Effect? 14

15 Fluorescent or T-LED 15

16 LED Tube Lamps (T-LEDs) NOTE: The above information is for reference only. This information is NOT intended to support, oppose or influence the reader s decision making process. 16

17 LED Retrofit Kits 17

18 DOE s Caliper Test of T-LEDs in Typical Recessed Troffers 18

19 Not so good 19

20 New LED Luminaires 20

21 Classroom / Administration T8 standard >30,000 hours -Mercury -Dim/switch-able -program start ballast -Affected by heat -Relamp T8 extended life -50,000 to 80,000 hours -Mercury -Dim/switch-able -program start ballast -Affected by heat -OK with controls -Relamp Dedicated LED +/- 50,000 hrs. to L70 +/-30% depreciation to L70 -Rare earths -Potential for glare -Dim/switch-able -Affected by heat -OK with controls -THROW AWAY 21

22 Classroom / Administration LED -50,000 hrs. to L70-30% depreciation -High glare potential -Dim/switch-able -Single driver -Directional down -Affected by high Temp -OK occ-sensors -rare earths T5 Fluorescent >30,000 hours -10% depreciation -High glare potential -Multiple controls options -optimal at 35 deg C -No flicker -3 to 12 mg mercury -THROW AWAY 22

23 Innovative LED Designs 23

24 Innovative LED Designs 24

25 Controls Manual Local manual switches Zones using switch banks Dimmers Automatic Occupancy/vacancy sensors Time clocks/timers Light levels for on-off or for daylight harvesting Load reactive and Demand Side management Building Automated Systems Load reactive (peak) 25

26 Controls here at Dunsmuir 26

27 Innovative LED Design Circadian Rhythms Image courtesy of Juno Lighting Group Image courtesy of Philips Lighting 27

28 ASHRAE Things to Know Manual On or Automatic On to 50% Automatic Off (Scheduled or Occupancy) Enclosed spaces (offices etc..) to have bi-level or dimming control (at least one control step between 30% and 70%) Automatic daylighting control for side-lit areas 247 sq.ft. and top-lit areas 900 sqft Separate controls for all task/display/accent/living wall lighting Automatically reduce stairwell lighting by at least 50% within 30 minutes of vacancy 28

29 Energy Dashboards Some Samples and providing useful information 29

30 Energy Dashboards 30

31 Energy Dashboards 31

32 Energy Dashboards Daily Data 32

33 Energy Dashboards 33

34 Energy Dashboards 34

35 Energy Dashboards 35

36 Thank you. Casey Gaetz, LC, Associate Tel: Gilmore Way, Burnaby, BC V5G 4X5 36