Energy Efficient Lighting Systems

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Mary Copeland
5 years ago
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1 Energy Efficient Lighting Systems Parag Thakur, Founder Green Pyramid Energy

2 Agenda Lighting Concepts Types of Lights Energy Efficient Lighting Decisions LUX Levels Types of Fittings LED Lighting Dimming Motion Sensors Photo Sensors / Time Controls Case Study 1 Case Study 2 Q&A

3 About Me Software Engineer by Training Passionate about Renewable Energy & Energy Efficiency Started Green Pyramid Energy 4 years ago

4 About Green Pyramid Energy LED & Solar Products Manufacturing Service & Installation Lighting Audits End-to-End Service Focus on Innovation

5 Lighting Concepts Lumens (lm) quantity of visible light emitted by a source LUX (lux) unit of illuminance 1 lux = 1 lumen / sq meter Luminous Efficacy (lm/w) Lumen Maintenance (lm80: 6000 hrs) Color Temperature (CCT) Color Rendering Index (CRI) Ingress Protection Rating (IPXX)

6 Types of Lights NOTE: Induction Lamps not shown above (90lm/w)

7 Energy Efficient Lighting Decisions Quality lighting environment = performance + aesthetics Determine LUX required Factor in Natural lighting Decide Fitting & Color for Aesthetics Decide placement & IP ratings Decide Wattage Dimming required? Motion sensing required? Photo Sensing / Time Control required? Remote Control required?

8 LUX Levels Ref:

9 Types of Fittings Indoor Bulbs, Tube Lights, Panel Lights / Down Lights, Surface Lights, Focus Lights, Wall Washers, Track Lights, Up Down Lights, High Bays, Low Bays Outdoor Street Lights, Flood Lights, Path Lights, Garden Lights, Underwater Lights, Inground lights, Bollards, Solar Street Lights

10 LED Lights LED = Light Emitting Diode COB (Chip-on-board) vs Multi-LEDs

11 LED Lights Pros Very efficient (140lm/w) 50,000 burning hours Instant On Solid State Dimmable High CRI Runs Cooler No mercury No UV (no bugs) Cons Directional light Sharp Current Sensitive

12 LED Lights: Thermal Management 30% Light, 70% Heat! High temperature reduces life and brightness Ensure proper heat dissipation Avoid fully enclosed fittings Avoid cheap products No MCPCB Plastic Casing Inferior LEDs No surge/esd protection

13 Considerations for LED Solar Lighting Perfect for spread out areas Saves wiring Suitable when power unreliable/missing Watch out for shading Theft! High Capital Cost Cost can be reduced with automatic dimming + motion control + time control

14 Security & Lighting Proper lighting increases effectiveness of your security cameras Use motion sensors to save power LEDs for instant ON

15 IS no. LED Lighting: Standards Title : 2012 General Lighting - LEDs and LED modules Terms and Definitions 16102(Part 1) : (Part 2) : (Part 1) : (Part 2) : (Part2/Sec13) Self- Ballasted LED Lamps for General Lighting Services Part 1 Safety Requirements Self-Ballasted LED Lamps for General Lighting Services Part 2 Performance Requirements Led Modules for General Lighting Part 1Safety Requirements Led Modules for General Lighting Part 2 Performance Requirements 2012 Safety of Lamp Control Gear Part 2 Particular Requirements Section 13 d.c. or a.c. Supplied Electronic Controlgear for Led Modules : 2012 d.c. or a.c. Supplied Electronic Control Gear for LED Modules - Performance Requirements : 2012 Method of Measurement of Lumen Maintenance of Solid State Light (LED) Sources : 2012 Method of Electrical and Photometric Measurements of Solid-State Lighting (LED) Products 16107Part 1):2012 Luminaires Performance Part 1 General Requirements :2012 Luminaires Performance Part 2 Particular Requirements Section 1 LED Luminaire : 2012 Photobiological Safety of Lamps and Lamp Systems

16 Dimming Types 0-10V lighting control TRIAC Dimming DMX DALI Ballasts need to support dimming For LEDs, drivers need to be dimmable

17 Dimming: 0-10V Earliest and Simplest Control signal: DC Voltage 0-10 V 0V = OFF 10V = 100% Brightness Widely used in commercial and industrial lighting Pros Simple to install and diagnose Small Current = Thin wire Cons One wire per control channel = too many wires Voltage drop for long cable Interference can cause flickering

18 Dimming: Triac Chop the AC waveform May not work with all inductive loads LED Drivers can be made Triac dimmable Need to check for compatibility

19 Dimming: DMX DMX512 (Digital Multiplex) Standard for digital communication networks Controls dimmers, intelligent lights Popular in Stage lighting and effects, and architectural lighting 1200m range & 32 loads per bus 512 channels per cable Wireless options available (300m)

20 Dimming: DALI DALI (Digital Addressable Lighting Interface) Successor for 0-10V lighting control Control lighting in building automation Individual Control Feedback from the fixtures Upto 64 devices/ballasts per subnet / 16 groups per device / 16 scenes per device 300m range No polarity

21 Motion Sensors: Types Passive Infra Red (PIR) Limited Range Heat Sensitive Cheaper 6m range Microwave Long Range Works through walls Not affected by heat Costlier 20m range

22 Motion Sensors: Uses Automatically turn lights ON/OFF Automatically dim lights Turn ON security lights Not suitable for fluorescent/cfl Switching reduces life Takes time to come to full brightness LEDs can be switched on/off any number of times

23 Photo Sensors & Timer Control Photo Sensors Automatically turns lights ON/OFF based on ambient light Can adjust brightness based on ambient light Common or Per Light Need to avoid stray light or shading Cheap and Standard Timer Control Turns Off/Dims lights after specific time Programmable for seasons

24 IoT: Internet of Things Connected lights! Wifi / RF / Bluetooth Home automation Smart Phone Control Analytics Several startups Retrofit options available

25 Cast Study 1: St Patrick s Cathedral Understating lighting management Lots of old inefficient lights Cost of renting lights Cost of energy Plastic turned yellow = reduced light 40 nos 250W Flood lights replaced with 40 nos 80W LED Flood Lights Reduced costs drastically and less maintenance Better security Lights available when needed

26 Cast Study 2: Kapil Tranquil Greens 36W and 72W fittings for street lights Replaced with 12W & 40W LED Street Lights Automatic Dimming after 9pm Full brightness on motion Lighting Bills reduced by 60%

27 Thanks!

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