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VIRTUAL BUILDING MODELS Driving Measurable Change for Sustainable Built Environments

IES World Green Building Week Faculty Event

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IES hosted a free IES Faculty session on Tuesday 18th September in central London to celebrate World Green Building Week 2012. The seminar was titled “Virtual Building Models: Driving Measurable Change for Sustainable Built Environments” Part 1 of this presentation covers: - Interoperability: IFC / Sketch-Up - Management: IES TaP - TSB Project: Optimise Part 2 of this presentation covers: - TSB Project: IMPACT - Daikin VRV - Monodraught Windcatcher View a video of the event here: http://www.youtube.com/watch?v=O6N5Bzw3D8Q&list=UUjCPI969e4Hb11RSgzlHf4Q&index=2&feature=plcp

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  • 1. VIRTUAL BUILDING MODELSDriving Measurable Change forSustainable Built Environments

2. VIRTUAL BUILDING MODELS Agenda: Session 1Interoperability: IFC / Sketch-UpManagement: IES TaP TSB Project: Optimise Coffee / Break 3. VIRTUAL BUILDING MODELSAgenda: Session 2TSB Project: IMPACT Daikin VRV Monodraught WindcatcherQuestions 4. AEC Software: InteroperabilityFully Integrated within the BIM Workflow 5. AEC Software: InteroperabilityNEW: Vectorworks & IESVE connection 6. AEC Software: InteroperabilityFully Integrated within the BIM Workflow: Model Checking 7. AEC Software: InteroperabilityFully Integrated within the BIM Workflow: VE-Gaia Reports 8. AEC Software: InteroperabilityFully Integrated within the BIM Workflow: VE-Pro Output 9. AEC Software: InteroperabilityFully Integrated within the BIM Workflow The sample BIM project can be foundon the Vectorworks website, the IFCexchange and process is proven toproduce fast and accurate analysis ofmodel data during theconceptualization phase betweenVectorworks Architect and IES. Contact [email protected] 10. AEC Software: Interoperability Fully Integrated within the BIM WorkflowSketchUp Plugin Aims Translate very complex geometriesConvert complex SketchUp surfaces to room spacesEnable Doors, Windows, Shading Surfaces etc.Maximise use of "Groups & Dynamic ComponentsImport Google Earth location for local climate Assign standard properties Building (Office, Retail, Sports Arena etc.) Rooms (Gym, classroom, etc.) HVAC Systems (Radiant heaters, VAV, Heat pump, etc.) Constructions (timber, masonry, solid partition) Enable access to all IESVE analyses 11. Push-thru windows & doors Apply window or door component to surface 12. Push-Thru windows & doorsNeed to set component options Alignment: Glue to Any Cut Opening Set Component Axis Ensure axis set correctlyBecause we need to know which surface the component is glued to, to calc. the opening edges the direction of opening projection (depends on surface orientation) 13. Push-Thru windows & doors Takes silhouette Punches it thru Creates hole oninner surface Creates vertical andhorizontal revealsurfaces Stores glazedpolygon outlines foruse in VE 14. Erect-a-storeyDraw floor plan polygons, like Push/Pull 15. Erect-a-storeyDraw floor plan polygons, like Push/Pull 16. Assign types to Components & Groups Select: Room(part) Room(whole) Shade Door Window ExcludedNormally only use:Shade, Door, Window 17. Speeding up Identify rooms Group Type Room(whole) Allows each group to be self-contained Each Room (whole) group is only identified once Much faster to create a building storey by storey 18. Identify Rooms-selected facesTest and identify just one part of the model 19. Highlight Gaps tool Diagnostic tool available after Identify Rooms 20. Highlight Gaps show edges Highlights the disconnected edges to be fixed 21. AEC Software: ManagementIES TaP: Track design team progress for Green rating schemes Track progress of evidence and credits in real time Organised credit system based on assessment scheme All current BREEAM versions Upload evidence securely with multiple uploads Assign responsibility and deadlines Track the progress of design and post construction at the same time 22. AEC Software: ManagementIES Tap has achieved the BRE Badge of RecognitionSubmit projects directly to the BRE for Q&AFor 2008 you do not need to supply the Microsoft Word report DocumentTemplate anymoreNo need to post a CD containing the evidence or upload onto the BREwebsite anymore 23. Research & DevelopmentOPTIMISE: Simulation based optimisation toolOPTIMISE will create a tool which is able to optimise complex design factors suchas glazed area, choice of construction materials, building orientation andcompliance based on objectives such as energy consumption, carbon emissions andcost and constraints such as achieving specific daylight factor values. Partners: 24. Research & DevelopmentOPTIMISE: Simulation based optimisation tool New Rules of Measurement (NRM)NRM 1 Introduced in 2009 Order of cost estimating and cost planning Standard set of measurement rulesEstablish if the building isaffordable Realistic cost allowances and limits 25. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere in the Workflow?RIBA stages of work and OCCgatewaysFocus has been on PreliminaryCost Allowances Stage A / B (OCC 1 / 2) 26. Research & Development OPTIMISE: Simulation based optimisation tool Where to start?Building prices per square metreCovers a wide range of buildingtypesQuick and dirt method toestablish some cost targetsRange given which reflectstypical costs 27. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start? 1 2.1Shell and Core WorksSubstructureCost (/m) 92.00Frame 0.10 2.2Upper floors 15.50 2.3Roof 88.00 2.4Stairs 10.00Elemental /m2 GIFA2.5External walls125.00 2.6Windows and external doors 61.00Standard form of cost analyses2.7 2.8Internal walls and partitionsInternal doors 29.00 33.00benchmark studies3.1Wall finishes48.00Industry standard so other data 3.2Floor finishes 31.00 3.3Ceiling finishes 18.00sources available (BCIS) so can5.1Sanitary appliances15.50simply enter your own data 5.3Disposal installations5.00Be aware of what is not there 5.4Water installations 6.20 5.6Space heating and air treatment53.00Demolitions; remedials; external5.7Ventilating system0.75works5.8 5.9Electrical installationsGas and other fuel installations 30.00 15.00Health warnings 5.12 Communications installations0.36Risk; contingencies 5.13 Special installations 9.87 5.14 Builders work in connection 1.00 10 Preliminaries 100.00Construction cost (shell and core works only)808.28 28. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start?Elemental /m2 GIFA 29. Research & Development OPTIMISE: Simulation based optimisation toolWhere to start? Elemental /unitSchedule of measured itemsImportant that model labeledcorrectlyLink to cost library or simplytype in your own ratesCareful when moving from/m2 GIFA all in rate i.e makesure you include everything!Be aware of what is notthere Demolitions; remedials; external works 30. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start?Elemental /unit 31. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start?Adjustments 32. Research & Development OPTIMISE: Simulation based optimisation tool Where to start? Adjustments: what affects costsSize; shape; layout LocationDesign (complexity/efficiency) MarketSpecification Programme / Procurement 33. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start?Adjustments: what affects costsWall to floor ratio A: Wall to floor area = 0.45 B: Wall to floor area = 0.69 C: Wall to floor area = 0.66 34. Research & DevelopmentOPTIMISE: Simulation based optimisation tool Where to start? Adjustments: what affects costs: Wall to floor ratio City Offices - Shell & Core50%40%30%20%10% 0% 0.200.25 0.300.35 0.400.45 0.500.55 0.60 0.650.70 0.750.80 0.850.90 0.951.00 1.05-10%-20% Wall : Floor ratio 35. Research & DevelopmentOPTIMISE: Simulation based optimisation toolWhere to start?Adjustments: what affects costs: Project value800000075000007000000650000060000005500000500000045000004000000Project Value of 3,500,000350000030000002500000200000015000001000000 500000 095% 100%105% 110% 115% 36. Research & DevelopmentOPTIMISE: Simulation based optimisation toolFinally Cost Plan 37. End of Session 1Thanks for listeningCoffee!Well be happy to answer any of yourquestions 38. VIRTUAL BUILDING MODELSAgenda: Session 2TSB Project: IMPACT Daikin VRV Monodraught WindcatcherQuestions 39. Research & DevelopmentIMPACT: Environmental ImpactIMPACT will create an integrated tool for Environmental Impact, Life-CycleAnalysis, and Life-Cycle Costing which will be integrated with the sdesign, operational energy assessment suite of tools.Partners: 40. Embodied impacts in constructionWhat are they and are they important? 41. IMPACTwba.comWhat are embodied impacts in construction? The impacts that occur through a materials/products life-cycle are said to be embodiedInuse The main embodied impact indicators are carbon andwater, but there are may others Life Cycle Analysis/Assessment (LCA): Measure, analyseand/or performance evaluation of embodied impacts A buildings embodied impact is the sum of the constituentmaterials and products 42. IMPACTwba.comAre embodied impacts from construction important? Lets take embodied carbon SteelCement Construction accounts for aMetalproducts16% Vehicles12%Other ?significant proportion of Industrial equiptment16%annual global materialConstructn Constructnconsumption >>>>>56% and CO2 emissions. AluminiumPlastics (EU) 0.6Gt of Steel ~ 1.8Gt/CO2 Vehicles 7% E&E6%Metal OtherVehicles 2.8Gt of cement ~ 2.8Gt/CO2products 27% 27% 29% Sounds like a lot, but is it?Constructn 24%Industrial equiptment Constructn 20% Packaging 40%20%Source: Sustainable Materials with both eyes open. Allwood, J. Cullen, M. 43. IMPACTwba.com Construction embodied CO2e compared to operational CO2e (global) Global CO2e Industry SteelCementOther Metal Vehicles 8%products12%Other ? Steel 16%Buildings25%Transport(operatnl) Industrial23% 32% Other equiptment45%16%Cement Constructn 19%ConstructnIndustry56%37% PaperPlastic 4% 4%Aluminium3%OtherAluminiumPlastics (EU) 8% Vehicles7% E&EBuildings 32% operational Metal Vehicles Other 27% 6% (operatnl)products27% Transport32% 29% 23%PackagingConstructnIndustrial Constructn40%24% equiptment20%non constn Constrn 20% industryembodied 24% 13% 13% embodiedSource: Sustainable Materials with both eyes open. Allwood, J. Cullen, M.Source: IEA 44. IMPACTwba.comEmbodied impacts are increasingly importantKg CO2/m2/year Operational impacts are050100150reducing due to legislation(e.g. BR part L) 2000 Increased thermal 2010performance can lead toincreased embodied Bestimpacts pract Embodied impacts areFuture?largely up-front reducingGW mitigation window EmbodiedOperationalSOURCE: Allwood & Cullen, UIT, 2012 45. What do IMPACT complianttools do? 46. IMPACTwba.comThe IMPACT method in a nutshell Put simply, IMPACT multiplies rates of environmental impact for each material by their quantity inMaterial X the building Rates The rates are taken from the BRE Rx1 (CO2e) = 0.5kg/kgRx2 (Water) = 2kg/kg database, based on user material Etc.choices Quantity from model The quantity take-offs are Qx = 5000kg automatically measured from the model (e.g. VE) or can be entered Impact Ix1 = Rx1 x Qx 3D CAD/BIM has enabled theIx2 = Rx2 x Qx number crunching required 47. IMPACTwba.comWorkflow and process overview Workflow designed tointegrate with othertasks (e.g. energy,LCC) through BIM Quantity take-offs frommodel 48. Concept and detailed stage functionality Concept stage rapid optionappraisal; building shape and orelemental level decision-makingusing pre-made constructions or 450 450600 Progressing to detailed buildingspecific optimisation; layer level ordecision-making using extensiveBRE material library 49. IMPACTwba.comWhole building assessment Continuous building-levelfeedback; optimised resultsthrough iterative decision-making Performance evaluation atbuilding-level avoidsassumption-loaded elementalfunctional units (e.g. u-values) Project specific elementspossible including foundations Optimisation of embodied andoperational impacts 50. IMPACTwba.comLCA features of the IMPACT method Flexible indicators: Carbon and 12others (incl. water, toxicity, resourceefficiency and ozone), BRE Ecopoints Green Guide and certified profiles Flexible life-stage reporting: Productstage (to gate), installation, in-use andend of life (to grave) BS EN 15643-2,4 and 15978 (CENTC/350) reporting Ready for emerging EU 15804 EPD data Automated quality validations SOURCE: Wikipedia 51. IMPACTwba.comLife cycle costing in IMPACT Integration with LCC Helps to justify decisions where up-front capital costs are higher Focus on durability $ Flexible study periods (0 to 80 years) RICs New Rules of Measurement(NRM) categorisation system integration 52. IMPACTwba.comIntegration with BREEAM Eligible for two Exemplary credits innext revision of UK schemes Based on minimum requirements: Elements to be included in model Accuracy of quantities and material/product selection Qualitative statement on benefits Better Worse realised 100 80 60 40 2020 40 60 80 100 120 >>>% % % %% % % % % % % International scheme implementationBuilding Benchmarkunder development EPEP Future: Performance assessment via0 20 40 60 80 10 12 14 16 18 20 22 23building-level benchmarks CO2/FU0 0 0 0 0 0 0 0 53. IMPACTwba.comIMPACT Phase 1 (IES tools) and Phase 2 roll-outPhase 1 Oct 12Phase 2 Autumn 13LCA and LCCmethodology IFC InteroperabilityschemaSpecificationPlug-ins to widely used 3D CAD/ BIM applications(soon) Compliant3rd Partytools 54. Thank you.Daniel [email protected] 55. ManufacturersDAIKIN UK: Integration of DAIKIN VRVTool automatically sizes the system and select the correct model-number & allowsusers to compare alternative configurations so that they can easily evaluate thebest option to maximise energy efficiency and lower building energy use.Full Thermal Simulations reveal Annual Loads, Power Input and Efficiencies. 56. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 57. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 58. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 59. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 60. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 61. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 62. Manufacturers DAIKIN UK: Integration of DAIKIN VRVHorizontal System EfficienciesVertical Efficiencies 63. Manufacturers DAIKIN UK: Integration of DAIKIN VRVTimed efficiencies with set back temperature 64. Manufacturers DAIKIN UK: Integration of DAIKIN VRVPermanently on efficiencies 65. ManufacturersDAIKIN UK: Integration of DAIKIN VRV 66. ManufacturersMonodraught WindCatchers: Performance ComponentsDrag and drop WindCatcher Performance Components into your IES model. Performance Components are data-rich fully formattedanalysis-ready objects that can be integrated into your building design. 67. Manufacturers Monodraught Windcatchers: Performance ComponentsDrag and drop Windcatcher Performance Components into your IES model. Performance Components are data-rich fully formattedanalysis-ready objects that can be integrated into your building design. 68. SUNPIPE Natural Daylight SystemsWINDCATCHER X-Air Natural Ventilation SystemsSOLA-BOOST X-Air Natural Ventilation Systems WINDCATCHER Classic Natural Ventilation SystemsSOLA-BOOST Classic Natural Ventilation SystemsCOOL-PHASE Low Energy Cooling and Ventilation Systems 69. ManufacturersMonodraught Windcatchers: Performance Components 70. ManufacturersMonodraught Windcatchers: Performance Components Assess the performance of ournatural ventilation and low energycooling systems on an annual basis Internal temperatures Flow rates / air change rates Air quality CO2 concentration Energy & financial savings Recognised weather data(TRY, DSY, IWEC etc.) Certified calculation methods(ASHRAE, CIBSE) 71. ManufacturersMonodraught Windcatchers: Performance ComponentsA catalogue of predefined component Windcatchersystems available to every user of the IES VE-ProSuite... 72. ManufacturersMonodraught Windcatchers: Performance Components Monodraughts systems can Every performance definingsimply be dragged andfactor is predefined - oncedropped on to a users building placed, the system is ready tomodelsimulate. 73. Quantifying the performance. CFD Pressure testing Wind tunnel testing 74. ManufacturersMonodraught Windcatchers: Performance Components http://www.youtube.com/watch?v=dCLtMtJEXp0&list =UUjCPI969e4Hb11RSgzlHf4Q&index=6&feature=plcp 75. Manufacturers Monodraught Windcatchers: Performance Components Decreased modelling time for natural ventilationstrategies. Increased accuracy - CFD and experimentallyvalidated performance defining factors. Assess the energy saving potential for naturalventilation systems compared with conventionalHVAC schemes. Architectural visualisation. 76. End of Session 2Thanks for listening, well be happyto answer any questions