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Greenbuild Expo 2011
Low Energy Design
30th June 2011
Dr Sarah GrahamB Eng, C Eng MCIBSE, Eng D
UK Sales Manager
T: +44 141 945 8500
C: +44 7837 251354
www.iesve.com
© Integrated Environmental Solutions Ltd.
Integrated Environmental Solutions LtdFounded 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
© Integrated Environmental Solutions Ltd.
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.
Overview
The problem
• Increasing Scope/Decreasing Fees
Fees
Scope
The problem
glazing orientation form
The solution - Collaboration
BIM f
Building
Owner f
Architecture Contractor
Civil
Engineering
Facilities
Manager
Construction
Manager
Electrical
Engineer
Mechanical
EngineerIntegrated Design
Process
© Integrated Environmental Solutions Ltd.
Conventional design process
Building design process
Master Planning
Concept Design
Schematic Design
Detailed Design
Completion In use
Analysis
Contractors,
construction manager,
commissioning
authority, cost estimator
Mechanical, electrical,
& plumbing
Mainly architect , structural
engineer & client
Planners, client body,
community members
Architect , client,
cost consultant
A linear design
process
Users
© Integrated Environmental Solutions Ltd.
Conventional design process
Construction
Tender documentation
Detailed Design
Schematic Design
Concept Design
Consultation
& Engagement
Project start
completion
ConstructionConstruction Documentation
Detailed Design
SchematicDesign
Time
Effort
© Integrated Environmental Solutions Ltd.
Integrated design process
Building
desig
n
A multi-
disciplinary
design team
Concept design
Completion
process
Building
Conceptual
modelling
Predictive/incentive
modellingCompliance
modelling
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
© Integrated Environmental Solutions Ltd.
Integrated design process
Building design process
TraditionalEffort
Time
Constructions Documents
Detailed Design
SchematicDesign
Constructions
Key elements of integrated 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.
• The addition of subject specialists involved (e.g. energy simulation, daylighting, comfort, acoustics)
• 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
• Clear articulation of performance targets and strategies, to be updated throughout the process by the design team
© Integrated Environmental Solutions Ltd.
Building Information Modelling
Energy Model
Composite
Model
Architectural
ModelStructural
Model
Electrical
Model
Plumbing
Model
BIM
(linked with phasing,
sequencing,
construction schedule)
Mechanical
Model
• Graphical information-3D objects visual in the model
• Non-graphical information- Performance data
• Linked information- Schedule & cost information
Cost Model
Compliance
Model
Other Model
Building
Information Model
Building Performance Model
BIM vs BPM
Building design process
Master Planning
Concept Design
Schematic Design
Detailed Design
Completion In use
© Integrated Environmental Solutions Ltd.
Building design process
Climate
Locality
Site features
Nat resources
Urban form
Urban solar
Urban light
Visualise
Brief consequences
Building type
Climate & bldg type
Building form
Footprint headlines
Headline design
directions
Headline sustainability
directions
Visualise
Baseline solution
Baseline outcomes
Footprint
Scheme directions
Building solar
Building light
Renewable directions
Sustainability
directions
Basic loads
Compliance directions
Visualise
Brief refinement
Detail definitions
Systems
HVAC
Air flows
Building detail feature
design
Loads – steady state
Energy – dynamic
Plant size
Optimisation
Energy compliance
Sustainability
compliance
Certification
CFD etc studies
Visualise
Certification
Energy in use
Re-certification
Controls
Re-furbish & improve
Building design process
Master Planning
Concept Design
Schematic Design
Detailed Design
Completion In use
© Integrated Environmental Solutions Ltd.
Integrated approach to project delivery
<Virtual Environment>
model of the
Project location: Glasgow
Master
planning
What if climate
change?
2050?
© Integrated Environmental Solutions Ltd.
Integrated approach to project delivery
Concept
design
Sketch model
VE model
VE models with different glazing percentage
© Integrated Environmental Solutions Ltd.
Integrated approach to project delivery
Schematic
design
VE model with 20% glazing Suncast
EPC
Thermal result
Radiance
MacroFlo
Apache System
© Integrated Environmental Solutions Ltd.
Integrated approach to project delivery
Detailed
design
CFD
HVAC Cost Plan
Suncast
Simulex
EPC
Radiance
BREEAM
© Integrated Environmental Solutions Ltd.
Target CO2
TER
Actual CO2
DER/BER
Actual BuildingNotional Building
Compliance
Comparison Tool
Real Building
Real vs Actual Building
© Integrated Environmental Solutions Ltd.
IDP Technology - Vision
© Integrated Environmental Solutions Ltd.
IDP Technology - Reality
Building design process• Model input
− Design for sustainability using same tool regardless of BIM/CAD platform
Autodesk Revit
Google SketchUp Graphisoft ArchiCAD gbXML
Other gbXML
[IES Plug-ins]
IES <VE> ModelIT
gbX
ML
<V
E>
How it works:
1. Draw Geometry in Autodesk Revit
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
4. Choose Analysis Type
IDP Technology - Reality
© Integrated Environmental Solutions Ltd.
IDP Technology - Reality
© Integrated Environmental Solutions Ltd.
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’