Low Energy Design – Sarah Graham (Greenbuild Expo, June 2011)
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  • 1. Greenbuild Expo 2011Low Energy Design 30th June 2011 Dr Sarah Graham B Eng, C Eng MCIBSE, Eng D UK Sales Manager T: +44 141 945 8500 C: +44 7837 251354 Sarah.graham@iesve.com www.iesve.com
  • 2. Integrated Environmental Solutions LtdFounded June 1994Head 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 © Integrated Environmental Solutions Ltd.
  • 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.© Integrated Environmental Solutions Ltd.
  • 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 Mechanical BIM f Integrated DesignEngineering Engineer Process Facilities Electrical Manager Engineer Construction Manager
  • 7. Conventional design process Building design process Master Concept Schematic Detailed Completion In use Planning Design Design Design Planners, client body, community members Architect , client, cost consultant Mainly architect , structural engineer & client Mechanical, electrical, & plumbing Contractors, construction manager, commissioning Users authority, cost estimator A linear design process Analysis© Integrated Environmental Solutions Ltd.
  • 8. Conventional design process Project start Concept Design Schematic Design Detailed Design Effort Tender documentation Consultation & Engagement Schematic Detailed Construction Construction Design Design Documentation Construction Time completion© Integrated Environmental Solutions Ltd.
  • 9. Integrated design process Predictive/incentive modelling Compliance modelling Completion A multi-disciplinary design team process •Landscape architect •Ecologist •Architect •Energy specialist •Structural engineering •Civil engineering design A multi- •Mechanical engineer disciplinary •Electrical engineer design team •Plumbing engineer •Other specialists(fire, acoustics, daylighting, controls, etc.) •Facility manager •Contractor Building •Construction manager Building •Cost estimator Concept design Conceptual modelling© Integrated Environmental Solutions Ltd.
  • 10. Integrated design processKey elements of integrated design process process Building design• 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 Effort and the establishment of a consensus on this matter between client and designers Traditional• Budget restrictions applied at the whole building level, with no strict separation of budgets for individual building systems.• The addition of subject specialists involved (e.g. energy Schematic Detailed Constructions Constructions simulation, daylighting, comfort, acoustics) Design Design Documents• Testing of various design assumptions through the use of Time performance analysis throughout the whole process to provide relatively objective information on this key aspect of performance• Clear articulation of performance targets and strategies, to be updated throughout the process by the design team © Integrated Environmental Solutions Ltd.
  • 11. Building Information Modelling Architectural Structural Model Model Electrical • Graphical information Model -3D objects visual in the model Mechanical Model BIM Composite (linked with phasing, • Non-graphical information Model sequencing, Plumbing - Performance data construction schedule) Model Energy Model Other Model • Linked information - Schedule & cost information Compliance Model Cost Model© Integrated Environmental Solutions Ltd.
  • 12. BIM vs BPM Building design processMaster Concept Schematic Detailed Completion In usePlanning Design Design Design Building Information Building Model Performance Model
  • 13. Building design process Building design process Master Concept Schematic Detailed Completion In use Planning Design Design Design 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 Headline design Building light Building detail feature directions design Urban light Renewable directions Headline sustainability Loads – steady state Visualise Sustainability directions directions Energy – dynamic Visualise Basic loads Plant size Compliance directions Optimisation Visualise Energy compliance Sustainability compliance Certification CFD etc studies Visualise© Integrated Environmental Solutions Ltd.
  • 14. Integrated approach to project delivery Project location: Glasgow Master planning What if climate change? 2050? <Virtual© Integrated Environmental Solutions Ltd. Environment> model of the
  • 15. Integrated approach to project delivery Concept design Sketch model VE model VE models with different glazing percentage© Integrated Environmental Solutions Ltd.
  • 16. Integrated approach to project delivery Schematic design VE model with 20% glazing Suncast Radiance Apache System EPC Thermal result MacroFlo© Integrated Environmental Solutions Ltd.
  • 17. Integrated approach to project delivery Detailed design Suncast CFD Simulex Radiance HVAC EPC Cost Plan© Integrated Environmental Solutions Ltd.
  • 18. BREEAM
  • 19. Real vs Actual Building Notional Building Actual Building Real Building Target CO2 Actual CO2 TER DER/BER Comparison Tool Compliance© Integrated Environmental Solutions Ltd.
  • 20. IDP Technology - Vision© Integrated Environmental Solutions Ltd.
  • 21. IDP Technology - Reality• Model input Building design process − Design 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© Integrated Environmental Solutions Ltd.
  • 22. IDP Technology - RealityHow it works: gbXML1. Draw Geometry in Autodesk Revit2. From the Revit Toolbar: • Set Building Location • Define Building Parameters: • Building Type • Construction Materials • Building System Types • Room Types <VE>3. Launch IES VE-Toolkits/VE-Pro4. Choose Analysis Type
  • 23. IDP Technology - Reality© Integrated Environmental Solutions Ltd.
  • 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’© Integrated Environmental Solutions Ltd.
  • 25. Thank you … Questions? Sarah.graham@iesve.com© Integrated Environmental Solutions Ltd.