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BIM Facilitated Green Retrofit Design (GRD)

A collaboration study on BIM and Green Retrofit Design Shanshan Bu April 2012

shanshan bu

on 22 April 2012

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Transcript of BIM Facilitated Green Retrofit Design (GRD)

Green Retrofit Design(GRD)
Conclusion Thank you for your attention! And one more thing... is here BIM is a digital representation of physical and functional characteristics of a facility. As such it serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its lifecycle from inception onward. (National BIM Standard Project Committee (NBIMS), US)
BIM is an approach to building design, construction and management.It supports continuous and immediate availability of design scope, schedule and cost information.(Autodesk)
Green retrofit aims to promote better indoor environment and good impact on human health, by means of energy retrofit. •Green Building Studio (Autodesk)
•Ecotect (Autodesk)
•EcoDesigner (Graphisoft)
•VE-Pro (Integrated Environmental Solutions)
•Energy Plus (U.S. Department of Energy & LBNL)
•eQuest-DOE2 (Lawrence Berkeley National Lab, LBNL)
Building Information Modeling (BIM) Green Retrofit BIM based energy analysis tools Outlines Buildings consume largest amount of energy and produce most of GHGs.
Commercial buildings built before energy codes.
GRD aims to commit sustainability in design and operation of retrofitting projects
BIM integrated information system, revitalized the building design, cradle to grave.
BIM facilitated GRD are engineering driven, providing oppotunities to MEP and Structural enginners
Energy retrofitting is the improvement, replacement, and substitution of new or modernized equipment, parts and systems almost exclusively to better their energy efficiency. (Autodesk, 2009) • Easy use tools
• Comples tools largely doman of engineers
•Analyzing buidling form and optimizing the building envelop
•Net-zero energy goals, reaching for "performace-based design approach"

Green RetrofitDesign (GRD) through energy analysis tools Case study on Empire State Building Typical Retrofit
Signed project development agreement w/ ESCO
Review planned capital projects
Investment grade audit
No outreach to tenants
5-10 lighting & HVAC measures examined
Spreadsheet analysis of savings on a measure-by-measure basis
Recommendations to ownership based on simple payback

Deep Retrofit
Kick-off discussion and initial goal setting
Walk throughs and creation of project baseline (planned capital & O&M spend)
Investment grade +++ audit
Calibrated energy model
Tenant interviews/workshop, sample/standard designs
80+ measures examined with theoretical minimum exercise
Optimization of packages of Energy Efficiency Measures using energy model and Life Cycle Cost Analysis (LCAA)
Recommendations to ownership based on LCCA (includes follow-on support through contract & implementation phase)
Project Size (ft², m²): 2.1 million square feet
Building Type(s): Historic skyscraper office building
Project Type: Historic retrofit
Total Building Costs: $20M
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