Dr Sarah Graham. Greenbuild Expo Low Energy Design. 30 th June 2011

Transcription

1 Greenbuild Expo 2011 Low Energy 30 th June 2011 Dr Sarah Graham B Eng, C EngMCIBSE, EngD UK Sales Manager T: C: Sarah.graham@iesve.com

2 Integrated Environmental Solutions Ltd Founded June 1994 Head Office in Glasgow, Scotland offices: Dublin, Melbourne, India, Boston and San Francisco IES representation in UK, Europe, US, Canada, Malaysia, Middle East. software in over 140 countries; international reseller network International sustainability consultancy from IES Consultancy Services International software training via Authorized IES Trainers Offices Consultants Resellers

3 Overview Synopsis Use of software in low carbon design process The problem - issues that designers face when pursuing low carbon design. The solution -vision of what the solution could be. Current Situation What can be done now? Roadmap what steps need to be taken to move towards the vision.

4 The problem Increasing Scope/Decreasing Fees Fees Scope

5 The problem glazing orientation form

6 The solution - Collaboration Building Owner f Architecture Contractor Civil Engineering BIMf Mechanical Engineer Integrated Process Facilities Manager Electrical Engineer Construction Manager

7 Conventional design process Building design process Master Planning Concept Schematic Detailed Completion In use Planners, client body, community members Architect, client, cost consultant Mainly architect, structural engineer & client Mechanical, electrical, & plumbing A linear design process Contractors, construction manager, commissioning authority, cost estimator Users Analysis

8 Conventional design process Project start Concept Schematic Detailed Tender documentation Effort Consultation & Engagement Construction Schematic Detailed Construction Documentation Time Construction completion

9 Integrated design process Compliance modelling Predictive/incentive modelling Completion design process A multidisciplinary design team Building Building A multi-disciplinary design team Landscape architect Ecologist Architect Energy specialist Structural engineering Civil engineering Mechanical engineer Electrical engineer Plumbing engineer Other specialists(fire, acoustics, daylighting, controls, etc.) Facility manager Contractor Construction manager Cost estimator Concept design Conceptual modelling

10 Integrated design process Key elements of integrated design Building process design process Multi-disciplinary collaboration between architects, engineers, contractors, cost specialists, facility managers right from the beginning of the design process Discussion of the various important performance issues and the establishment of a consensus on this matter between client and designers Budget restrictions applied at the whole building level, with no strict separation of budgets for individual building systems. Effort Traditional The addition of subject specialists involved (e.g. energy simulation, daylighting, comfort, acoustics) Schematic Detailed Constructions Documents Constructions Testing of various design assumptions through the use of performance analysis throughout the whole process to provide relatively objective information on this key aspect of performance Time Clear articulation of performance targets and strategies, to be updated throughout the process by the design team

11 Building Information Modelling Structural Model Architectural Model Electrical Model Graphical information -3D objects visual in the model Mechanical Model Plumbing Model Composite Model BIM (linked with phasing, sequencing, construction schedule) Non-graphical information - Performance data Energy Model Compliance Model Cost Model Other Model Linked information - Schedule & cost information

12 BIM vs BPM Building design process Master Planning Concept Schematic Detailed Completion In use Building Information Model Building Performance Model

13 Building design process Building design process Master Planning Concept Schematic Detailed Completion In use Climate Brief consequences Baseline solution Brief refinement Certification Locality Building type Baseline outcomes Detail definitions Energy in use Site features Climate & bldg type Footprint Systems Re-certification Nat resources Building form Scheme directions HVAC Controls Urban form Footprint headlines Building solar Air flows Re-furbish & improve Urban solar Urban light Visualise Headline design directions Headline sustainability directions Visualise Building light Renewable directions Sustainability directions Basic loads Building detail feature design Loads steady state Energy dynamic Plant size Compliance directions Optimisation Visualise Energy compliance Sustainability compliance Certification CFD etc studies Visualise

14 Integrated approach to project delivery Master planning Project location: Glasgow What if climate change? 2050? <Virtual Environment> model of the

15 Integrated approach to project delivery Concept design Sketch model VE model VE models with different glazing percentage

16 Integrated approach to project delivery Schematic design VE model with 20% glazing Suncast Radiance Apache System EPC Thermal result MacroFlo

17 Integrated approach to project delivery Detailed design Suncast CFD Simulex Radiance HVAC EPC Cost Plan

18 BREEAM

19 Real vs Actual Building Notional Building Actual Building Real Building Target CO 2 Actual CO 2 TER DER/BER Comparison Tool Compliance

20 IDP Technology - Vision

21 IDP Technology - Reality Model input Building design process for sustainability using same tool regardless of BIM/CAD platform Google SketchUp Graphisoft ArchiCAD gbxml Other gbxml [IES Plug-ins] Autodesk Revit IES <VE> ModelIT

22 IDP Technology - Reality How it works: 1. Draw Geometry in Autodesk Revit gbxml 2. From the Revit Toolbar: Set Building Location Define Building Parameters: Building Type Construction Materials Building System Types Room Types 3. Launch IES VE-Toolkits/VE-Pro <VE> 4. Choose Analysis Type

23 IDP Technology - Reality

24 Next Steps Raising awareness about the strengths and weaknesses of the current situation with respect to Interoperability. Continue to improve the Interoperability and start to look at the round-trip whereby we take information back into the BIM package from the analysis package. Automation of parts of the process automatic updating and re-calculation when something changes. Cloud computing Key documents IGT Low Carbon Construction report Cabinet Office Government Construction Strategy BIM Working Party Strategy Paper

25 Thank you Questions?