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Evaluating Lighting Controls - Results from the Next Generation Luminaries Design Competition

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As lighting controls are perhaps the fastest moving aspect of lighting technology, this presentation discusses the recent evaluations of LED luminaires and lighting controls completed by the Next Generation Luminaires Design Competition. Unlike previous NGL presentations at LEDucation (and elsewhere), this session focuses on the evaluation of lighting controls, discussing both methodology and results. The presentation will cover NGL evaluations in four areas: (1) quantitative and visual evaluation of luminaires, (2) basic dimming of submitted luminaires using digital protocols, (3) color tuning controls, and (4) connected lighting systems. Objectives for the presentation include: assessing the submission requirements and evaluation methods; comparing results from current and recent competitions; identifying tentative conclusions based on the evaluation results; and highlighting areas for continuing evaluation. Ms. Taylor will be assisted in the presentation by Charles Thompson and Dan Blitzer

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Evaluating Lighting Controls - Results from the Next Generation Luminaries Design Competition

  1. 1. Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request. This course is registered with 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.
  2. 2.  As lighting controls are perhaps the fastest moving aspect of lighting technology, this presentation discusses the recent evaluations of LED luminaires and lighting controls completed by the Next Generation Luminaires Design Competition. Unlike previous NGL presentations at LEDucation (and elsewhere), this session focuses on the evaluation of lighting controls, discussing both methodology and results.  The presentation will cover NGL evaluations in four areas: (1) quantitative and visual evaluation of luminaires, (2) basic dimming of submitted luminaires using digital protocols, (3) color tuning controls, and (4) connected lighting systems.
  3. 3.  Assess the submission requirements and evaluation methods used in the 2016 NGL Indoor Design Competition  Identify tentative conclusions about luminaire and controls performance based on the evaluation results  Compare the lighting and controls results from current and recent competitions  Recognize the gaps in current knowledge and highlight areas for continuing evaluation
  4. 4.  Ruth Taylor, IES; Pacific Northwest National Laboratory  Dan Blitzer, LC; The Practical Lighting Workshop
  5. 5. Partnerships link energy efficiency & lighting quality
  6. 6.  Understanding NGL  The Indoor Competition in 2016  Luminaire Evaluations  Color Evaluations  Dimming Evaluations  Connected Lighting  What did we learn . . . and what was not clear  Next steps for NGL
  7. 7.  Video loop – 4 mins. https://www.youtube.com/watch?v=zFTRBkwH5 ak
  8. 8.  Performance Criteria  Documentation  Serviceability  Controls
  9. 9. 2016 Indoor All Intents 121 1937 Judged 62 1023 % of intents judged 51% 53% Awards 15 361 % of judged awarded 24% 35%
  10. 10.  Luminaire focused categories with application targets  High output recessed downlights  Linear pendants  Industrial high bays  2x2 troffers  Control areas  Single - digital (all applications)  Single - dim to warm & white tunable  Connected lighting systems
  11. 11. Category Spacing Ceiling Ht. Avg. Initial fc at the 30” Work Plane Max/Min Ratio Conceptual Application Target 2’ x 2’ Recessed Troffers 12’ x 12’ 9’ 30 fc 3:1 Open Office Pendant Mounted Linear 12’ o.c. 10’ 30 fc 3:1 Open Office High Output Recessed Downlights 10’ x 10’ 20’ 30 fc 3:1 Auditorium or Lobby Industrial High Bay 20’ x 20’ 20’ 20 fc, 5 fc vertical illumination 10’ aff 3:1 High Ambient Industrial (suitable for 50⁰ C)
  12. 12.  Pedestrian Scale  12’ decorative post top – with dimming  Bollards  Parking Garage  Detailed controls evaluation  Challenges
  13. 13.  Organized by application  Product Evaluation  Installed and lighted  Table top – serviceability  Documentation  Process  Independent judgment  Preliminary scoring  Discussion and decision  Post judging analysis & verification
  14. 14. Evaluation is based on visual evaluation of the color appearance, consistency, and rendering of the installed luminaire. We collected TM-30 data for the first time in 2016. 48% of entrants submitted data.
  15. 15. Judges could see CRI value but not TM-30 data during judging.
  16. 16. 70 80 90 100 110 1.00 1.50 2.00 2.50 3.00 3.50 ColorMetric Color Score CRI - Awarded CRI - Submitted Rf - Awarded CRI/Rf Awarded CRI/Rf Submitted Rg Awarded Rg Submitted Lt. green - CRI Dk. green - Rf
  17. 17.  What we have tried in the past  What we did this year
  18. 18.  DMX512: Entries must be shipped to the judging location wired with DMX-In & DMX-Out connectors. Connector should be XLR-5, male for input, female for output. Pinout will be as follows:  Pin 1 Signal Common  Pin 2 DMX Data –  Pin 3 DMX Data +  Pin 4 None  Pin 5 None  DALI: Luminaires must be provided with 3’-0” leads of Purple (DALI+) and Gray (DALI-) THHN wire connected to the luminaire. Luminaires will be addressed in the field.  Proprietary systems: (System using proprietary control protocols to control a light source. Individual addressing and control of each luminaire is required. 0-10v, forward phase, reverse phase, or 3-wire line voltage are not considered proprietary and will not be reviewed. Wall box dimming will also not be considered proprietary.) All products must include detailed installation instructions. All connectors must be included; power will be via 5-15P Plug. System must be able to individually control each luminaire. Controller for judges must be provided on a 50’ whip.
  19. 19. All Winners 2015 DALI 39.6% 63.2% DMX 20.8% 10.5% Proprietary 39.6% 26.3% 2016 DALI 52.8% 57.9% DMX 30.2% 21.1% Proprietary 30.2% 5.3%
  20. 20. Dimming Level Fade Time 1 100% Zero fade 2 Power to luminaire 3 off - 100%, 100% - off Zero fade 4 off - 100%, 100% - off 5 sec 5 off - 100%, 100% - off 15 sec 6 off - 100%, 100% - off 30 sec 7 100%, 50%, 20%, 10%, 5%, 1%, off Zero fade 8 off, 1%, 5%, 10%, 20%, 50%, 100% Same sequence for each entry
  21. 21.  Color constancy  Dimming range  Dimming smoothness  Start conditions  Flicker  Other criteria deemed appropriate by the judges
  22. 22. Input to the control system Manual or Automatic Input to the source Control Signal LED output response Dimming Driver Intention Expectation 0-10V DALI DMX Other Measured Perceived Linear Logarithmic
  23. 23. What does 50% dimmed mean? 1. Control signal? 2. Power? 3. Measured light?  Integrating sphere reading i.e. luminous flux  light meter reading i.e. illuminance 4. Perceived light?  visual interpretation  affected by adaptation, eye dilation Source: IESNA Lighting Handbook, 9th Edition
  24. 24. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 %Light DALI Control Signal %Measured & %Perceived Light vs. DALI Control Signal DALI %Measured DALI %Perceived Lin %Measured Light Lin %Measured Light
  25. 25.  DLC CALC connection  Key parameters  Code compliant  Daylight  Presence detection  Individual control  Overlapping groups  Entrant options  Wired or wireless, hybrid OK  Integrated or separate
  26. 26.  All entries in the same room  3-6 luminaires provided  Daylight simulated  Presence timed
  27. 27.  Entrant guide  Pre-qualification  Check list of capabilities  Review of documentation  Visual evaluation  Lighting performance  Dimming performance  Sensor performance  Installation/configuration 2016%Next%Generation%Luminaires Connected%Lighting%Systems Documentation%Review Luminaire%ID 333 Company Best&Lighting& Luminaire%Name OmniLight Description Our&luminaires&provide&beautiful&illumination&of&the&space&and&our& controls&are&so&seemless&and&unobtrusive&they&predict&your&needs&and& adjust&the&lighting&automatically! Required%Documentation% Yes No N/A Comment:%indicate%source%document%that%supports%review Installation&instructions x Start&up&instructions x Commissioning&instructions x Mechanical&and&electrical&wiring&diagrams x Plans&indicating&luminaire&and&sensor&placement x Operation&manual/User&guide x Luminaire&specification x Driver&specification x Sensor&specification(s) x Network&communication&model Network&communication&model&interoperability&standard&or&specification&compliance Network&communication&model&compliance&certification&documentation API&documentation,&if&applicable x Subjective%Review Installation%Instructions Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Start%up%instructions Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Commissioning%instructions Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Mechanical%and%electrical%wiring%diagrams Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Plans%indicating%luminaire%and%sensor%placement Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Operation%manual/User%guide Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Luminaire%specification Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Driver%specification Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Sensor%specifications Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Network%communication%model Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Network%communication%model%interoperability%standard%or%specification%compliance Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail Network%communication%model%compliance%certification%documentation Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail API%documentation,%if%applicable Rank&each&of&the&following&(1&=&Poor,&5&=&Excellent) Ranking Comment:%note%key%features%and/or%failings Comprehensiveness Clarity Technical&Detail 2016%Next%Generation%Luminaires Connected%Lighting%Systems Reviewer%Name NGL%ID Company Luminaire/Control%Name Score%each%of%the%following%(0%=%Unacceptable%%4%=%Excellent) Mandatory%Requirements Ranking Comments Basic%Operation/Luminaire%Performance% Color Illuminance Light1Distribution Glare1Control Servicability Value Appearance Bonus1Points Daylighting%Control% Smoothness Response1time Sensitivity Dimming Color1constancy Range Smoothness Start1conditions Flicker Driver1physical1dimensions/mounting Occupancy/Vacancy%Control Response1time Sensitivity Variable1time1delay Optional%Features Ranking Comments Individual/Personal%Control Ease1of1use Flexibility Energy%Reporting Ease1of1use Flexibility Reconfiguring%of%System Ease1of1reconfiguring Flexibility Installation%and%Configuration:%informed%by%ILC%and%Dan Ease1of1installation Ease1of1configuration Documentation1quality Commissioning:%Informed%by%ILC%and%Dan Ease1of1commissioning Documentation1quality
  28. 28.  External controller with networked luminaires  Self-contained network (all logic on board)
  29. 29.  Benefits:  Robust control functionality, typically can interface with BMS  Many options for luminaire styles  Well suited for new construction and complex projects  Limitations:  Dual points of responsibility  More complicated installation  More complicated start up and commissioning  Cost for smaller projects Manufacturer supplies control system, luminaire by others
  30. 30.  Benefits:  Integrated solution, single point of responsibility  Simple installation, start up, and commissioning  Well suited for retrofits and smaller projects  Limitations:  Limited control functionality  Limited options for luminaire styles Integrated fixture/control “out of the box”
  31. 31.  How do you know how system capability matches to project needs (mostly by experience today)?  How do you know that you have correctly configured a system – is professional commissioning necessary?  In practice, if a system fails to meet expectations, is it capability, configuration, or defect?  More robust evaluation setting (sensors)  Better configuration process
  32. 32.  Continued emphasis on digital controls and connected systems  Continued refinement of application focused evaluations  More realistic installations (expanded number of sites?)  Your ideas are welcome! Ruth.Taylor@pnnl.gov
  33. 33. End of April San Diego, CA. 
  34. 34. This concludes The American Institute of Architects Continuing Education Systems Course

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