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1、LEED Case Study July 2008,LEEDTM Green Building Assessment,LEED - Leadership in Energy & Environmental Design,Designed and managed by the USGBC “Score Based” Rating System Design Guide,LEEDTM Green Building Assessment,LEED-NC Credit Breakdown,LEED-CI Credit Breakdown,NC-project,Nokia BDA Campus,Over
2、all LEEDTM Assessment Program,Special Concerns for Office Building Design Public transportation for large staff group Maximise Open Space for communal activities Waste water handling technologies Building energy performance Recycled contents Minimum IAQ performance Outdoor air delivery monitoring Da
3、ylight and thermal comfort control Construction Site Management Commissioning Requirements,LEEDTM NC Assessment,Costing for LEED Assessed Project Site Selection No major cost implication Water Efficiency Minor cost implication on Water Saving Fittings Application 30% of Water Saving Operation Cost S
4、aving on Utility Usage Energy & Atmosphere Initial cost increment on installing Energy Efficient Design Features Double Skin Facade Heat Recovery Equipment Cost Free Energy Efficient Measures Free Cooling Control Daylighting Energy Cost Saving 20% Annually Materials & Resources Recycled Content Mate
5、rials minor cost implication Regional Materials reduced cost from imported materials Rapidly Renewable Materials comparable higher cost Indoor Environmental Quality High material standard for healthy working environment No cost implication on comfort control issues,LEEDTM Green Building Assessment,S
6、ustainable Site for LEED,Site Development: Maximized Open Spaces for Communal Activities Heat Island Effect Reduction: All roof areas with High Solar Reflective Index (SRI) materials Native or Adaptive Plant Species designed for most open areas Grasscrete applied for Open Parking Spaces Maximized Un
7、derground Parking Spaces Environmental Transportation: Encourage usage of Campus Bus Lines Sufficient Bicycle Sheds and Changing Facilities provided in the Building Carpool or Vanpool provided in Basement Parking Preferred Parking Spaces are allocated for Low-emitting & Fuel Efficient Vehicles,Maste
8、r Planning Issues: Wind Conditions Solar Conditions,Sustainable Site Design (not only for LEED),Energy Efficient Design-for LEED,Facade Design,Energy Efficient Design for LEED,Atrium,Building Energy Simulation,Overall Annual Energy Cost Saving: 20% Comparing with Baseline Design of LEED,Energy Effic
9、ient Design for LEED,Water Conservation Strategies for LEED,Water Conservation Strategies applied: Centralized Recycled Water Supply for Irrigation, Cleansing and Flushing Adaptive Plant Species Further reduce Water Consumption Water Saving Fittings applied to Toilets and Bathrooms,Environmental Mat
10、erials Selection for LEED,Environmental Material Issues: High Recycled Content Materials Selected Regional Material to reduce Embodied Energy Consumption Adoption of Rapidly Renewable Materials for Interior Design,% in terms of Total Material Cost,Healthy Material Issues: Low-emitting Materials Sele
11、cted for Interior Design Adhesives & Sealants Paints & Coatings Carpet Systems Composite Wood & Agrifiber Products,Indoor Environment Design for LEED,Atrium Daylighting,LEEDTM On-line Status,LEED Assessment Summary (2007-10-19),LEED-NC Certification,Overall LEEDTM Credit,Green Area and Open Space Ma
12、ximization Maximized Open Space and larger than Total Building Footprint Area in the Site 56% of Open Space are designed as Greenery Minimization of Heat Island Effect Most of Roofing Materials are High Solar Reflective (SRI78) Maximized Usage of Underground Parking Grasscrete Provided for Above Gro
13、und Parking Transportation Strategies to minimize Urban Pollution At least 5% of Occupants are provided with Bicycle Parking Facilities More than 30 Campus Bus routes provided Preferred Parking Space provided for Low-emitting & Fuel Efficient Vehicles Water Conservation No potable water is required
14、for Irrigation and Flushing, native plant species selected or by Grey Water Low-flow fixtures and centralized grey water recycling system connected Total water saving is 37%, comparing with other standard office building Energy Conservation Total 19% of total energy and total energy cost saving, com
15、paring with ASHRAE Baseline Standard Design Energy Efficient Measures include, DSF, Free Cooling, Heat Recovery,Achievement in LEEDTM,Better IEQ for Workspaces Maximized Outdoor Air Supply for Health Standard Low-emitting Adhesive, Sealants, Paints, Coatings, Carpet and Composite Wood Materials Sele
16、ction Individual Control Provision allowed for 90% of Occupant on Lighting and Air-conditioning More than 77% of Internal Workspace with Sufficient Daylight Level More than 98% of Internal Workspace can access View Outside Sustainable Building Material Selection Strategies 11.7% of Constructin Mater
17、ials Recycled Content 26% of Construction Materials from Regional Supplies 3.5% of Construction Materials are Rapidly Renewable Sustainable Construction Site Management More than 95% of Construction Waste diverted from Disposal Construction IAQ Monitoring Plan Established and Implemented Reviewed &
18、Completed all Commissioning Requirements,Achievement in LEEDTM (Contd),SS Credit 8: Light Pollution Reduction Intent Minimize light trespass from the building and site, reduce sky-glow to increase night sky access, improve nighttime visibility through glare reduction, and reduce development impact o
19、n nocturnal environments. Requirements FOR INTERIOR LIGHTING The angle of maximum candela from each interior luminaire as located in the building shall intersect opaque building interior surfaces and not exit out through the windows. OR All non-emergency interior lighting shall be automatically cont
20、rolled to turn off during non-business hours. Provide manual override capability for after hours use.,LEED-NC lighting Credits,SS Credit 8: Light Pollution Reduction AND FOR EXTERIOR LIGHTING Only light areas as required for safety and comfort. Do not exceed 80% of the lighting power densities for e
21、xterior areas and 50% for building facades and landscape features as defined in ASHRAE/IESNA Standard 90.1-2004, Exterior Lighting Section, without amendments.,LEED-NC lighting Credits,EA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems Intent Verify that the buildings energy
22、 related systems are installed, calibrated and perform according to the owners project requirements, basis of design, and construction documents. Commissioned Systems Commissioning process activities shall be completed for the following energy-related systems, at a minimum: Heating, ventilating, air
23、 conditioning, and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls Lighting and daylighting controls Domestic hot water systems Renewable energy systems (wind, solar etc.),LEED-NC lighting Credits,EA Prerequisite 2: Minimum Energy Performance Intent Establish the mini
24、mum level of energy efficiency for the proposed building and systems. Requirements Design the building project to comply with both the mandatory provisions (Sections 5.4, 6.4, 7.4, 8.4, 9.4 and 10.4) of ASHRAE/IESNA Standard 90.1-2004 (without amendments); and the prescriptive requirements (Sections
25、 5.5, 6.5, 7.5 and 9.5) or performance requirements (Section 11) of ASHRAE/IESNA Standard 90.1-2004 (without amendments).,LEED-NC lighting Credits,EA Credit 1: Optimize Energy Performance Intent Achieve increasing levels of energy performance above the baseline in the prerequisite standard to reduce
26、 environmental and economic impacts associated with excessive energy use. Requirements Select one of the three compliance path options described below. Project teams documenting achievement using any of the three options are assumed to be in compliance with EA Prerequisite 2.,LEED-NC lighting Credit
27、s,EQ Credit 6.1: Controllability of Systems: Lighting Intent Provide a high level of lighting system control by individual occupants or by specific groups in multi-occupant spaces (i.e. classrooms or conference areas) to promote the productivity, comfort and well-being of building occupants. Require
28、ments Provide individual lighting controls for 90% (minimum) of the building occupants to enable adjustments to suit individual task needs and preferences. AND Provide lighting system controllability for all shared multi-occupant spaces to enable lighting adjustment that meets group needs and prefer
29、ences.,LEED-NC lighting Credits,LEED-CI Project,Shui On Headquarter Office Renovation,Status of LEED CI,LEED for Shui On Headquarter Office Renovation,Assessment Area:,Offices Renovation LEED Commercial Interiors,Offices,Target:,Achieve LEED-CI Certificate within 2% of total construction cost.,Analy
30、sis Summary (LEED CI),2.1 Sustainable Sites,2.1 Sustainable Sites,Public Transportation,Preferred Parking,Development Density and Community Connectivity,Analysis Summary (LEED CI),2.2 Water Efficiency,Low-flush Urinal with Sensor Control,Dual-flush Toilet,Low-flow Faucet with Sensor Control ,2.2 Wat
31、er Efficiency,Calculation Table,Analysis Summary (LEED CI),2.3 Energy & Atmosphere,2.3 Energy & Atmosphere,Strategies Adopted for Energy Saving,Occupancy Sensor For Light and AC control,Lower Lighting Power Density Design,Strategies Adopted for Energy Saving,2.3 Energy & Atmosphere,Programmable Cont
32、roller For Light and AC control,Delighting Effect in Overcast Day,Task Light for Individual Control,Analysis Summary (LEED CI),2.4 Materials & Resources,Storage for Recyclable,Construction Waste For Recycle,Construction Waste For Recycle,Strategies Adopted for Material and Resource,Analysis Summary
33、(LEED CI),2.5 Indoor Environmental Quality,Strategies Adopted for Indoor Environment Quality,Dedicated Space for Paint,Air Duct Protection,Dust Control,Dedicated Ventilation,Material Protection,Site Enclosed for Safety and Cleanness,Analysis Summary (LEED CI),2.6 Innovation in Design,LEED-CI lightin
34、g Credits,EA Pr1: Fundamental Commissioning Intent Verify that the projects energy-related systems are installed, calibrated and perform as intended. Commissioned Systems: The energy-related systems to be included in the commissioning process activities include as a minimum: Heating, ventilating, ai
35、r conditioning and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls Lighting controls, including day lighting Domestic hot water systems Renewable energy systems (PV, wind, solar, etc.).,EA Pr 2: Minimum Energy Performance Intent Establish the minimum level of energy e
36、fficiency for the tenant space systems. Requirements Design portions of the building as covered by the tenants scope of work to comply with ASHRAE/IESNA Standard 90.1-2004 or the local energy code, whichever is more stringent.,LEED-CI lighting Credits,EA CR 1.1 Optimize Energy Performance, Lighting
37、Power Intent Achieve increasing levels of energy conservation beyond the referenced standard to reduce environmental impacts associated with excessive energy use. Requirements Reduce connected lighting power density below that allowed by ASHRAE/IESNA Standard 90.1-2004* using either the Space-by-Spa
38、ce Method or by applying the whole building lighting power allowance to the entire tenant space. Option A. Reduce lighting power density to 15% below the standard (1 point) (25% , 2 points; 35% , 3 points),LEED-CI lighting Credits,EA Cr 2: Optimize Energy Performance, Lighting Controls Intent Achiev
39、e increasing levels of energy conservation beyond the prerequisite standard to reduce environmental impacts associated with excessive energy use. Requirements Install daylight responsive controls in all regularly occupied spaces within 15 feet of windows and under skylights.,LEED-CI lighting Credits
40、,EQ 6.1: Controllability of Systems, Lighting Intent Provide a high level of lighting system control for individual occupants, and specific groups in multioccupant spaces (e.g., classrooms and conference areas), to promote the productivity, comfort and wellbeing of building occupants. Requirements P
41、rovide lighting controls for: At least 90% of occupants, enabling adjustments to suit individual task needs and preferences, AND All shared multi-occupant spaces where transient groups must share lighting controls.,LEED-CI lighting Credits,Inform Design,Documentation,LEED RFP,Concept Design,SD,DD,CD,Construction,Operations,LEED Coordination & workshop,Building Commissioning,Finish Energy Model,Submit Binder,CERTIFICATION,USGBC Audit,REGISTRATION,LEED Assessment Timeline,Discussion,