architype - green bim uk perspective, ntu taipei, 13 february 2014
DESCRIPTION
Building Information Modelling (BIM) is rapidly becoming the industry standard in building design globally. The UK government has announced that all centrally procured constructions projects need to use BIM by 2016 and expect this to reduce capital cost and the carbon burden from the construction and operation of the built environment by 20%. In Taiwan, the Head of the Construction and Planning Agency (CPA) announce that Taiwan government will support BIM development in public policy. Architype are leaders in the the field of Sustainable / Green Architecture and are earlier adopters of BIM in their green design processes, particularly with regard to delivering radical reductions in energy consumption & carbon emissions. Elrond Burrell, Associate at Architype, was invited to present a UK perspective on Green BIM at the National Taiwan University in Taipei on 13 February 2014. The BIM meeting was hosted by Prof. Shang-Hsien (Patrick) Hsieh and held in the Civil Engineering Research BuildingTRANSCRIPT
Green BIM
UK perspective 13 February 2014, National Taiwan University, Taipei
Elrond Burrell 趙晨瀚 Associate, Architype Ltd [email protected]
We design
Life Enhancing"Genuinely Sustainable Architecture
Overview 1. The Rise of BIM 2. UK Government + BIM 3. UK Green BIM 4. Architype Green BIM
1. The Rise of BIM
BIM isn’t new!
Why now? 1. Software & Hardware capabilities
3d Modeling Structured Information Digital Collaboration
Why now? 2. Digital / Social Media ‘Tsunami’
Digital everything Social everything … will the construction industry catch up?
2. UK Gov + BIM
EU Directive Energy Performance of Buildings
Buildings consume 40% of energy in EU By 2018 All new public buildings “Nearly Zero-Energy” By 2020 All new buildings “Nearly Zero-Energy”
EU Directive
UK Gov Strategy
UK Gov Strategy
UK Gov Purpose 20% reduction in capital costs 20% reduction in CO2 emissions + reliable outcomes + predictable building (asset) performance
UK Gov BIM “Building Information Modeling (BIM) is the process of generating and managing information about a built asset over its whole life.” Cabinet Office 2012
UK Gov BIM + GSL
BIM Protocols
3. UK Green BIM Aspirations & Reality
Aspirations EPDs linked to Models Model based Green Rating compliance check
The RegBIM project using IFC underway
Reality … ? Model based Embodied Carbon + Lifecycle Analysis
Impact specification / database
www.impactwba.com
Reality … ? Model linked Responsible Sourcing / Environmental Impact data
NBS Create specification tool using Uniclass2
constructioncode.blogspot.co.uk
Reality REM - Rapid Energy Modeling
Energy Carbon Day lighting Water Wind Thermal comfort Renewable energy generation
Caveats
Conceptual design guidance only Not an accurate prediction of actual performance
REM example 1
autodeskvasari.com
REM example 2
www.sefaira.com
Reality Dynamic Simulation Modeling
Thermal modeling Overheating “Conservation of Fuel” regulations compliance
Caveats
Often not an accurate prediction of actual performance Interoperability issues often require re-modeling
DSM example
Reality Material waste reduction
Accurate quantities from model Buildability issues resolved in model
Caveats
Is the model built for this purpose? How accurate? How resolved?
Reality Scan-to-BIM for Refurbishment
~80% of building stock exists already Accurate existing building model Early analysis of cost & carbon effective measures Risk / Cost reduction
Scan-to-BIM example
Scan-to-BIM example
Scan-to-BIM example
Reality In-Use Energy / CO2 emission reductions
Accurate design data Accurate energy modeling tools Greatest climate change impact for new build Robust long term performance Significant cost savings / Best ROI Healthier buildings
4. Architype Green BIM
Passivhaus Standard “…the world’s leading standard in energy efficient design” Rigorous performance standard Quality assurance Optimal comfort (ISO 7730) Minimal energy Climate specific – works anywhere
PHPP “simplified models, precise data” Accurate Open Parametric Instant
Data 4 QA Passivhaus can be seen as a quality assurance standard that ensure that the right information is used at the right point in the process to deliver reliable robust energy performance & comfort.
BIM + Passivhaus Process + Information + Model and test
- Not box ticking - Not sexy graphics - Not on site
BIM 4 Passivhaus Simple + Useful + Productive 1. Visual interrogation 2. Accurate Live Numerical Data
Visual Interrogation Design coordination / integration Thermal Continuity Heat Loss Envelope
Design Coordination
Design Coordination
Thermal Continuity
Heat Loss Envelope
Accurate Live Data Treated Floor Area (TFA) Actual Volumes Ventilation Volumes Heat Loss Areas Window / Door Opening Areas
Areas and Volumes
Heat Loss Areas
Opening Areas
Outcomes 2 x 65kW Boilers for a 2200m2 School 25kW peak heat demand = 5x oversized! 90% reduction in gas consumption
Fresh Indoor Air
“We feel that our children are more alert and attentive in lessons due to the amount of daylight in classrooms and the fresh air throughout the school ... learning has been enhanced” Sara Morris, Head Teacher
Client Satisfaction
Bushbury Hills Primary
Oakmeadow Primary
Wilkinson Primary
Chester Balmore
Herefordshire Archive
UK’s Greenest Building University Innovation Centre
www.architype.co.uk