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Satyen Mukherjee Philips Research North America Oct 13, 2011
Philips Research North America, Satyen Mukherjee, Oct 13, 2011
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Outline
- Why ZEB - Background
- Key Challenges
- Role of Lighting
- Results from DOD test beds
- Summary
Lighting and Net Zero Energy Buildings Advanced Energy 2011 - - PowerPoint PPT Presentation
Lighting and Net Zero Energy Buildings Advanced Energy 2011 - - PowerPoint PPT Presentation
Lighting and Net Zero Energy Buildings Advanced Energy 2011 Buffalo, New York Satyen Mukherjee Philips Research North America Oct 13, 2011 Outline Why ZEB - Background Key Challenges Role of Lighting Results from DOD test
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Philips Research North America, Satyen Mukherjee, Oct 13, 2011
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Supply 104 Quads
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U.S. Energy Flow, 2005 (Quads)
86% of primary energy is from fossil fuels, with 69% of the petroleum imported Domestic 67% Imports 33%
Industrial 32%
Consume 100 Quads Nuclear 8% Renewable 6% Fossil 86%
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Philips Research North America, Satyen Mukherjee, Oct 13, 2011
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Zero Energy Buildings: A Critical Look at the Definition P.Torcellini, S. Pless, M. Deru - NREL
- D. Crawley - DoE
2006
- Net-zero site energy
- Net-zero source energy
- Net-zero carbon
- Net-zero energy cost
Definitions
www.nrel.gov ZEB or ZNEB: Zero Net Energy Building Produces more energy on-site than it consumes, on an annual basis. – Excludes:
- Transportation
- Embodied Energy in Water, Materials, Waste
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Philips Research North America, Satyen Mukherjee, Oct 13, 2011
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Challenges
- Wide range of building types
- Variability in requirements – geographical, weather
- Drift over time
- Economic Performance
- Flexibility/Adaptability to Changing Needs
- Balancing Energy Consumption with Occupant
Comfort and Productivity
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Commercial building types 40-90% energy savings needed
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Commercial Buildings Site Electricity Consumption by End Use
Lighting +Cooling +Heating +Ventilation = 68% Site Electricity use
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Advanced Lighting Controls: Technology Description
OccuSwitch Wireless Dynalite Hybrid ILDC
OccuSwitch Wireless Dynalite Hybrid ILDC System architecture Room-based control Distributed control bldg-wide connectivity Room/area based control with building-wide connectivity Scalability Room by Room Scalable from a single room to entire building Scalable from a single room to wide area control Best applications Single offices; barracks; Retrofits; smaller budget New construction, major renovation Multi floor office buildings with daylight areas. Retrofit or new In-room Connectivity Wireless based on ZigBee PRO standard Wired Wireless based on ZigBee PRO standard Cost advantage +++ Installation ++ Commissioning + Installation +++ Commissioning ++ Installation ++ Commissioning Energy adv. ++ ++ +++
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Building A—Lighting Power Density
Weekday LPD decreased deeply throughout the day.
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 6 12 18 24 LIghting Power Density (W/sq ft) Time of day
Weekday pre-retrofit LPD
Mean Mean- Standard Deviation Mean+Standar d Deviation 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 6 12 18 24 LIghting Power Density (W/sq ft) Time of day
Weekday post-retrofit LPD
Mean Mean-Standard Deviation Mean+Standard Deviation 0% 2% 4% 6% 8% 10% 12% 14% 16% 1 2 3 4 5 6 7 8 9 10
Percent of weekday EUIs in each bin Energy Use Intensity Bins (W-h/sq ft/day)
Pre-retrofit weekday EUI distribution
0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 1 2 3 4 5 6 7 8 9 10
Percent of weekday EUIs in each bin Energy Use Intensity Bins (W-h/sq ft/day)
Pre-retrofit weekday EUI distribution
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Preliminary Performance Summary – June 2011
Performance objective Code baseline Post- retrofit Reduction compared to code baseline Annual EUI (kWh/sq ft/yr) 4.54 0.82 82% Peak LPD over a 15 minute period (W/sq ft) 1.81 0.64 65% Average deviation from specified illuminance range (lux) N/A 1N/A Performance objective Code baseline Post- retrofit Reduction compared to code baseline Annual EUI (kWh/sq ft/yr) 4.54 1.74 62% Peak LPD over a 15 minute period (W/sq ft) 1.81 0.9 50% Average deviation from specified illuminance range (lux) N/A 40N/A Performance objective Code baseline Post- retrofit Reduction compared to code baseline Annual EUI (kWh/sq ft/yr) 4.54 2.90 36% Peak LPD over a 15 minute period (W/sq ft) 1.81 0.82 55% Average deviation from specified illuminance range (lux) N/A to come N/A
Building A: Hybrid ILDC – Area covered 1782 sq.ft. Building B: Occuswitch - Area Covered 4821 sq.ft. Building C: Dynalite – Area Covered 6450 sq.ft.
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Philips Research North America, Satyen Mukherjee, Oct 13, 2011 Index
Integrated Solution
Air Conditioning Ventilation Access Lighting Blinds Heating Security Audio Visual Dynet Architectural
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Singapore planned 2009 educational Colorado USA Massachusetts, USA East Asia Florida, USA, both source and emissions NZEB, 2010 NREL, USA, 2011
NZEB around the Globe
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