LED LIGHTING IN DUBAI GENERAL PROJECTS DEPARTMENT DUBAI - PowerPoint PPT Presentation

LED LIGHTING IN DUBAI GENERAL PROJECTS DEPARTMENT DUBAI MUNICIPALITY

EMIRATE OF DUBAI:

OBJECTIVE AND VISION: LIGHTING PEOPLE DUBAI - Maintaining People Safety - Creating - Providing Advanced Lighting An Excellent And Smart City & Security Solutions - Improving Performance - Providing Comfortable And - Increasing Sustainability Sustainable Living - Reducing Carbon Foot - Saving Resources Print

OUTDOOR LIGHTING APPLICATION: • Street lighting • Roadway lighting • Parks and Community Facilities • Parking lots • City Landscaping • Residential and Commercial Buildings • Pedestrian and Bicycling Pathways

PURPOSE OF OUTDOOR LIGHTING: • Provide a safe and secure environment at night. • Extend the use of parks and walkways into the night. • To enhance historic/notable features • To enhance travel on the roads and at intersections.

DUBAI GREEN BUILDING REGULATION – OUTDOOR LIGHTING POWER DENSITY: Maximum Watts per square Building Area meter or linear meter Uncovered parking lots and drives 1.6 W/m² Walkways less than 3 meters wide 3.3 W/linear meter Walkways 3 meters wide or greater 2.2 W/m² Outdoor Stairways 10.8 W/m² Main entries 98 W/linear meter of door width Other doors 66 W/linear meter of door width Open sales areas (including vehicle sales lots) 5.4 W/m² - 2.2 W/m² for each illuminated wall or surface (or) Building Facades -16.4 W/linear meter for each illuminated wall or surface length Entrances and gatehouse inspection stations at 13.5 W/m² guarded facilities Drive-up windows at fast food restaurants 400 W per drive-through Lighting Power Densities for exterior areas not listed in Table 502.05 (1) should be no greater than those values given in ASHRAE 90.1-2007 Table 9.4.5or equivalent as approved by DEWA.

Light Source Comparison Data Usable* Lifetime Light Type Sheet lm/W (hrs) lm/W Incandescent 17 10-17 3k Halogen 20 12-20 10k T12 fluorescent 60 45-50 20k Metal halide 70 <40 8k-12k T8 fluorescent 74 55-60 20k Best-in-Class Power 120 55-75 35k-60k LED High-pressure sodium 91 <50 20-24k T5 fluorescent 107 96 20k Low-pressure sodium 120 65-70 18k

Guidelines for Specifying LED Lighting Solution for Projects : - A LED luminaire consists of the following: • LED modules, ballast or driver where applicable, • Heat-sink for thermal management, • Fixture and optics assembly - LED lighting type should be identified in the projects. • Self-ballasted type. (direct connection to supply mains) • Non-self-ballasted (required separate driver for supply mains connection) - LED modules replacement/upgrading possibility within the luminaire without replacing the whole luminaire/fixture. - Adequate ingress protection (IP) rating of the LED luminaire should be prescribed for the intended application under specific environmental conditions. ( IEC 60529) - Optics (lens, diffuser or reflector) considering that Well-designed optics will reduce optical losses and help improve the luminaire efficacy. - Type of driver to power and control LED lighting ( IEC 62384)

- LED lighting should have well-designed thermal management provisions to ensure LED junction temperature be maintained within design limit. - Maximum allowable ambient temperature for the LED lighting should be considered, so that it can operate without affecting its life or colour stability. (30-45 deg C) - Life and lumen maintenance, change in light output of a light source over operational life, relative to initially measured light output • L70 = time to 70% of original light output at XX% of operational hours • L50 = time to 50% of original light output at XX% of operational hours

IMPLEMENTED PROJECTS

LED & HID COMPARISON Wattage Delta in # of LED LED Category of Running Amount Savings p.a. Amount Consumption Consumption Site lamps Consumption Savings Baseline per hour hours p.a. (KWh) (AED) (KWh) (AED) (bulbs) (Watt) (Watt) (Wh/h) 49 55 70 15 6 5,902 2,597 1,610 21% 708 PORT SAEED PLAZA 10 60 125 65 6 1,314 578 1,424 52% 626 HATTA C.F. 20 60 125 65 6 2,628 1,156 2,847 52% 1,253 LEHBAB C.F. 26 60 125 65 6 3,416 1,503 3,701 52% 1,628 NAZWA C.F. 187 55 70 15 6 22,524 9,911 6,143 21% 2,703 AL-WARQA 3 RD 97 40 70 30 6 8,497 3,739 6,373 43% 2,804 NAD AL-HAMMAR 34 40 70 30 6 2,978 1,310 2,234 43% 983 AL-WARQA 2 ND 85 40 70 30 6 7,446 3,276 5,585 43% 2,457 AL-MIZHAR 1 ST 48 55 125 70 6 5,782 2,544 7,358 56% 3,238 AL-Awir Park 30 30 70 40 6 1,971 867 2,628 57% 1,156 AL-LISILY PARK 34 30 70 40 6 2,234 983 2,978 57% 1,310 Al-Khazzan Park 250 40 70 30 6 21,900 9,636 16,425 43% 7,227 AL-MUSHRIF PARK 665 60 125 65 6 87,381 38,448 94,663 52% 41,652 Al-Quran Park 75 30 70 40 6 4,928 2,168 6,570 57% 2,891 Jumeirah J. Track 1610 173,974 78,716 153,968 47% 70,637 Total 13-14 LED Proposed Life Span 30,000 (Hrs) Years HID Proposed Life Span 8,000 3-4 Years (Hrs)

TOTAL AL LED LIGH GHTS = 1,610 610 Nos. (Out (Out Of 13,868 68 Fittings ings) PERCNTAGE AGE OF LED LIGH GHTS S = 11. 1.6 6 % SAVINGS GS %= 47 47 % ∼ ( 15 154 4 MWh/ h/Year Year) CO CO ₂ Foot ot Print nt = 69 69 Ton n CO ₂ /Yea ear LED Light ghts in Public blic Park rks (DUBAI AI MUNICIPALI PALITY) Y)

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LED ISSUES/CONCERNS : - Risks associated with the use of high power LED (Environment & Human) - LED luminaires/fixtures associated cost (High Initial Cost/Investment) - LED efficiency and life span drop at higher temperatures

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