Continuing Education System

Transcription

1 Continuing Education System This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing or dealing in any material or product. Questions related to specific materials, methods and services will be addressed at the conclusion of this presentation. Finelite Inc., is a registered provider with The Green Building Certification Institute. This course is USGBC-approved for one GBCI CE hour. LEED Green Associates and LEED AP s with specialty must self-report all CE hours online through My Credentials at

2 AIA/GBCI Learning Objectives Research Delivers Change Study the findings of a recent research project to: 1 Review and understand why we need more light as we age. Research Goals Achieve 50% electricity savings Research Results 56% savings in electricity Understand how to use luminaires in a new way to achieve energy efficiency, lighting quality, and construction cost goals. Discuss lighting energy metrics: - Luminaire efficiency - Luminaire distribution effectiveness Review the impact of a task low ambient approach on the construction and operating costs. Meet all current standards Provide individual user control Reduce construction and operating costs IES light levels maintained 100% user satisfaction Lower installed costs are possible $0.30 per sf operating costs saved annually 5 Review a project where collaboration between the client and design team made task low ambient a reality

3 An Important Focus Buildings Have a Big Impact 75% By the year 2040, approximately three-quarters (75%) of the built environment will be either new or renovated. Source: McKinsey + Company

4 2030 Carbon Neutral The push toward Net-Zero by 2030 Energy Independence and Security Act of 2007 for Federal buildings. Architecture all buildings shall be carbon-neutral by 2030 Key methodology LPD LPD LPD ~ 0.04 w/ft 2 ~ 0.04 w/ft 2 ~ 0.4 w/ft 2 Light the Task Light the Vertical Surfaces Ambient Lighting Power Density can be Reduced 7 8 4

5 Key Results Summary Task Low Ambient Delivers: Proper task illumination levels Improved user satisfaction 50% reduction in energy consumption Reduction in installed and operating costs

6 The Benefits of Flexibility Task Lighting Technology Individual user control fc Flexibility: Any Task Any User Any Age Anytime Anywhere LPD ~ 0.04 w/ft 2 We were able to document: Traditional fluorescent task lights place 3 to 4 times more light on the surfaces than is recommended!

7 Task Lighting Technology The Multi-Generational Workforce Is Here to Stay W 60 6W We were able to document: Traditional fluorescent task lights place 3 to 4 times more light on the surfaces than is recommended!

8 The Impact Of Contrast Physics Supports Task Lighting The following examples show how the decrease in retinal illuminance causes a decrease in the ability of the viewer to see contrast between text and background. The light intensity at 7 is 1/49 of what it is at the source

9 LED Task Luminaires Are a Critical Decision Summary: Cut energy use by 50% Deliver the right light levels and luminance uniformity Make it beautiful Achieve strong user preference Keep within existing budgets

10 Understanding the Criteria Use the Following Criteria to Properly Light Vertical Services Define the architecture t through h vertical brightness Wall Washing Use luminaire with a forward throw asymmetric distribution Provides uniform overall glow Use fixture energy effectively Average 20fc on a 50% reflective surface LPD ~ 0.04 w/ft 2 19 Copyright 2011 Design Blitz, a California Corporation. All rights reserved

11 Wall Grazing Emphasize texture Vertical brightness defines space Improves appearance Reduces ambient fixture count Reduces energy Source: Yarnell Assoc

12 Understanding The Criteria 30fc maintained ambient Uniformity 3:1 max to min in immediate work area Lighting Power Density = 0.4 w/ft 2 Use the right amount of fixtures Reduce ambient fixture quantity LPD 0.4 w/ft

13 Luminaire Efficiency Products Must Do More Luminaire Efficiency Products Must Do More

14 Luminaire Efficiency Products Must Do More Application Effectiveness Typical Industry Practice Ambient: 2T8 on 12 centers linear feet of ambient luminaires Avg. Illuminance: 77fc Standard Layout Example LPD: 0.95 w/ft 2 No user control 12 power feeds 28 14

15 Application Effectiveness Do More With Less Task: 8w LED desk lamp Vertical: (6) 1T8 luminairesambient: 1T8 on 16 centers T8 Suspended Luminaires 90%+ luminaire efficiency 70-80% uplight distribution with widespread optics Shielding for downlight distribution Luminous element Quality construction for clean lines 420 linear feet of luminaires (vertical + ambient) Avg. illuminance: 32fc Task Low Ambient Example LPD: 0.44 w/ft 2 User control: 30-80fc 9 power feeds

16 High Performance Recessed Luminaires Illuminance (fc) Task 80%+ efficiency 1 Wide, even distribution for spacing flexibility 7 Uniform brightness and visually comfortable Easy installation Below ceiling access Sturdy and low cost construction 31 1 Meets Targets Luminance Uniformity Ratios Around Seating Area = 11:1 Across Broad Viewing Areas = 26:

17 Illuminance (fc) Vertical Illuminance (fc) Task & Vertical Meets Targets 2 Meets Targets Luminance Uniformity Ratios Around Seating Area = 33:1 Across Broad Viewing Areas = 1.3:1 33 Luminance Uniformity Ratios Around Seating Area = 6:1 Across Broad Viewing Areas = 2.2:

18 Illuminance (fc) Ambient Only Illuminance (fc) Task + Vertical + Ambient Meets Targets Luminance Uniformity Ratios Around Seating Area = 5:1 Across Broad Viewing Areas = 0.5: Meets Targets Luminance Uniformity Ratios Around Seating Area = 2.6:1 Across Broad Viewing Areas = 1.5:

19 Energy Savings Lower Installed Cost

20 National Grid Collaborative Design Approach

21 National Grid National Research Energy Laboratory Efficiency Strategies for Lighting Include: Pendant luminaires with 1T8 lamp on 16 centers 6 watt LED task lamps Task Low Ambient Approach Massive energy savings 44% below ASHRAE 90.1 Double LEED Platinum 41 Task Low Ambient Approach Toward Net-Zero building T8 lamps on 16 spacing 6w LED Desk lamps 42 21

22 SHI International Task Low Ambient Approach 0.6 w/sf for Task, Vertical, and Ambient 1T8 lamp on 18 spacing Recessed and wall mounted vertical illumination 7.4w Dimmable LED Desk lamps

23 Pendant Luminaires on 18 Centers 1T8 on 18 centers Recessed 2x2 Luminaires on 10 x 10 spacing Open Plan Layout Pendant indirect/direct luminaires 8 AFF 3T8 2x2 on 10x10 Spacing 1.18 BF Avg. Illuminance: 33 fc Task Illuminance: fc LPD: 0.51 w/ft BF for vertical 0.90 BF for ambient Avg. Illuminance: 26 fc Task Illuminance: fc LED Task 16% of total LPD T8 Vertical 8% of total LPD T8 Ambient 76% of total LPD 54% below ASHRAE Wide spread optic for improved uniformity 45 LED Task 16% of total LPD T8 Vertical 8% of total LPD T8 Ambient 76% of total LPD LPD: 0.49 w/ft 2 55% below ASHRAE 46 23

24 Recessed 2x2 Luminaires in Private Office Private Office Layout 2T8 2x2 in 10x12 office 1.13 BF for ambient Avg. Illuminance: 32 fc Task Illuminance: fc LPD: 0.68 w/ft 2 38% below ASHRAE For more information Visit Visit Visitit New Buildings Institute Advanced Lighting Guidelines Emerging Technologies Coordinating Council LEED / IESNA 47 ASHRAE

25 Thank You This concludes our presentation. For more information, please contact: Finelite, Inc Whipple Road Union City, CA Ph (510) Fax (510)