LEDCaseStudy个案研究

1、leed - leadership in energy & environmental designdesigned and managed by the usgbc“score based” rating system design guide water efficiency8%energy & atmosphere27%materials & resources20%sustainable sites22%indoor environmental quality23%leed-nc credit breakdownleed-ci credit breakdown

2、nokia bda campusspecial 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 daylight and the

3、rmal comfort control construction site management commissioning requirementscosting for leed assessed projectsite selection no major cost implicationwater efficiency minor cost implication on water saving fittings application 30% of water saving operation cost saving on utility usageenergy & atm

4、osphere initial cost increment on installing energy efficient design featuresdouble skin facadeheat recovery equipment cost free energy efficient measuresfree cooling controldaylighting energy cost saving 20% annuallymaterials & resources recycled content materials minor cost implication regiona

5、l materials reduced cost from imported materials rapidly renewable materials comparable higher costindoor environmental quality high material standard for healthy working environment no cost implication on comfort control issuessite development:maximized open spaces for communal activitiesheat islan

6、d effect reduction:all roof areas with high solar reflective index (sri) materialsnative or adaptive plant species designed for most open areasgrasscrete applied for open parking spacesmaximized underground parking spacesenvironmental transportation:encourage usage of campus bus linessufficient bicy

7、cle sheds and changing facilities provided in the buildingcarpool or vanpool provided in basement parkingpreferred parking spaces are allocated for low-emitting & fuel efficient vehiclesmaster planning issues: wind conditions solar conditionsfacade design atriumbuilding energy simulation casenam

8、edescription2proposed single-skinsame system with baseline3dsfdouble-skin faade with baseline hvac system4heat recoverydouble-skin faade with baseline hvac system + heat recovery system5free coolingdouble-skin faade with baseline hvac system + heat recovery system + cooling tower cooling6daylighting

9、double-skin faade with baseline hvac system + heat recovery system + cooling tower cooling + daylighting7ventilation coolingdouble-skin faade with baseline hvac system + heat recovery system + cooling tower cooling + transition season ventilationoverall annual energy cost saving: 20% comparing with

10、baseline design of leedwater conservation strategies applied:centralized recycled water supply for irrigation, cleansing and flushingadaptive plant species further reduce water consumptionwater saving fittings applied to toilets and bathroomsenvironmental material issues:high recycled content materi

11、als selectedregional material to reduce embodied energy consumptionadoption of rapidly renewable materials for interior design% of materials cost with recycled content11.7% of materials cost are regional supply26% of materials cost are rapidly renewable3.5% in terms of total material costhealthy mat

12、erial issues:low-emitting materials selected for interior design adhesives & sealants paints & coatings carpet systems composite wood & agrifiber productsatrium daylightingleed assessment summary (2007-10-19)status in design stage submissionplanned to be submitted in constn stagecan be n

13、ew creditscan be new creditscost & timecategoriesattemptedanticipatedclarifydeniedsustainable site8701212water efficiency55000energy & atmosphere4400213materials & resources00006ieq870162innovation & design000014total2523021767target404653leed-nc certificationcertified: 26 - 32 point

14、s, silver: 33 - 38 points, gold: 39 - 51 points, platinum: 51 or more points green area and open space maximization 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 a

15、re high solar reflective (sri78) maximized usage of underground parking grasscrete provided for above ground 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 s

16、pace provided for low-emitting & fuel efficient vehicles water conservation no potable water is required 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 o

17、ther standard office building energy conservation total 19% of total energy and total energy cost saving, comparing with ashrae baseline standard design energy efficient measures include, dsf, free cooling, heat recovery better ieq for workspaces maximized outdoor air supply for health standard low-

18、emitting adhesive, sealants, paints, coatings, carpet and composite wood materials selection 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 vie

19、w outside sustainable building material selection strategies 11.7% of constructin materials 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

20、 from disposal construction iaq monitoring plan established and implemented reviewed & completed all commissioning requirementsss credit 8: light pollution reductionintentminimize light trespass from the building and site, reduce sky-glow to increase night sky access, improve nighttime visibilit

21、y through glare reduction, and reduce development impact on nocturnal environments.requirementsfor interior lightingthe angle of maximum candela from each interior luminaire as located in the buildingshall intersect opaque building interior surfaces and not exit out through the windows.orall non-eme

22、rgency interior lighting shall be automatically controlled to turn off duringnon-business hours. provide manual override capability for after hours use.ss credit 8: light pollution reductionandfor exterior lightingonly light areas as required for safety and comfort. do not exceed 80% of the lighting

23、 powerdensities for exterior areas and 50% for building facades and landscape features as defined inashrae/iesna standard 90.1-2004, exterior lighting section, without amendments.ea prerequisite 1: fundamental commissioning of the building energy systemsintentverify that the buildings energy related

24、 systems are installed, calibrated and perform accordingto the owners project requirements, basis of design, and construction documents.commissioned systemscommissioning process activities shall be completed for the following energy-related systems, at a minimum: heating, ventilating, air conditioni

25、ng, 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.)ea prerequisite 2: minimum energy performanceintentestablish the minimum level of energy efficiency for

26、the proposed building and systems.requirementsdesign 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 5.5, 6.5, 7.5 and 9.5) or performanc

27、e requirements (section 11) of ashrae/iesna standard 90.1-2004 (without amendments).ea credit 1: optimize energy performanceintentachieve increasing levels of energy performance above the baseline in the prerequisite standard to reduce environmental and economic impacts associated with excessive ene

28、rgy use.requirementsselect 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.eq credit 6.1: controllability of systems: lightingintentprovide a high level of lighting s

29、ystem 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.requirementsprovide individual lighting controls for 90% (minimum) of the building occupants to enable

30、adjustments to suit individual task needs and preferences.andprovide lighting system controllability for all shared multi-occupant spaces to enable lighting adjustment that meets group needs and preferences. shui on headquarter office renovationstatus of leed ciassessment area:offices renovation lee

31、d commercial interiorsoffices target:achieve leed-ci certificate within 2% of total construction cost.2.1 sustainable sites 2.1 sustainable sites public transportation preferred parking development density and community connectivity2.2 water efficiency low-flush urinal with sensor control dual-flush

32、 toilet low-flow faucetwith sensor control 2.2water efficiency calculation table2.3 energy & atmosphere 2.3 energy & atmosphere strategies adopted for energy savingoccupancy sensorfor light and ac controllower lighting power density designstrategies adopted for energy saving2.3energy & a

33、tmosphere programmable controllerfor light and ac controldelighting effect in overcast daytask light for individual control2.4 materials & resources storage for recyclableconstruction waste for recycleconstruction waste for recyclestrategies adopted for material and resource2.5indoor environment

34、al quality strategies adopted for indoor environment qualitydedicated space for paintair duct protectiondust controldedicated ventilationmaterial protectionsite enclosed for safety and cleanness2.6innovation in designea pr1: fundamental commissioningintentverify that the projects energy-related syst

35、ems 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, air conditioning and refrigeration (hvac&r) systems (mechanical and passive) and associated con

36、trols lighting controls, including day lighting domestic hot water systems renewable energy systems (pv, wind, solar, etc.).ea pr 2: minimum energy performanceintentestablish the minimum level of energy efficiency for the tenant space systems.requirementsdesign portions of the building as covered by

37、 the tenants scope of work to comply with ashrae/iesnastandard 90.1-2004 or the local energy code, whichever is more stringent.ea cr 1.1 optimize energy performance, lighting powerintentachieve increasing levels of energy conservation beyond the referenced standard to reduce environmentalimpacts associated with excessive energy use.requirementsreduce connected lighting power density below that allowed by ashrae/iesna standard 90.1-2004*using either the space-by