Download - Dr Uma Presentation
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16th November 2011, Chennai, India
BIM and Green Building Design A Total Sustainable Solution Approach
by
Dr.Uma Maheswaran, LEED AP (BD+C), Cert. GMP (Spore), MASHRAE, PhD, MDBA, B.Arch
Vice President Jurong Consultants Pte Ltd, Singapore
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Key Challenges faced by Designers in Integrating Sustainable Practices into Design Development Eco Design Delivery Process Needs Integrated thinking
Site Survey, Climate Analysis
Building Massing &
Orientation
Computational
Simulations
Building
Performance
Mandates
Passive Design
Active Systems
Design Tender
Sustainability
Design
Construction
Environmental
Protection
Testing&
Commissioning
Measurement &
Verification
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Key Challenges Faced by Designers in Integrating Sustainable Practices into Design Development State of Art Sustainability tools Too many of them and only few use them
Tools
IAQ
Renewable Energy
Climatic Analysis
Facade
Lighting Systems
Energy Modeling
Acoustics
Ventilation / Airflow
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Façade Optimization –
Heat gain/loss through façade.
Equipment Selection –
Optimal selection of equipment
Schedules & Operation–
Optimal operational efficiency
Energy Modeling
Tools
Apache Sim
HAP
ESP-r
Energy Plus
Visual
DOE
DOE-2
Key Challenges Faced by Designers in Integrating Sustainable Practices into Design Development State of Art Sustainability tools Too many of them and only few use them
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Design tools try and ease out the designing and drawing process in the form of providing visual enhancement.
Architects are not hardcore technical professionals and sustainable practices in the past have been engineer’s domain.
Sustainable design concepts are always developed by researchers who are domain specific experts. Except for a few exceptions.
Key Challenges Faced by Designers in Integrating Sustainable Practices into Design Development Designed by Researchers for the use of practitioners
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Role of BIM in Eco-Design Delivery Process
When is it essential to go Green during the design delivery process? Timeliness of Information
Site Survey, Climate Analysis Building Massing & Orientation
Computational Simulations
Building Performance
Mandates
Passive Design
Active Systems Design Tender
Sustainability Design
Construction
Environmental
Protection
Testing&
Commissioning Measurement & Verification
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Imp
act
of
Sust
ain
abili
ty o
n P
roje
cts
Conceptual design
Detailed design
Construction
Energy modeling, conducted late in the project, sometimes even at the end of the
construction process
What is intended to help and improve the design becomes a costly, time-consuming
exercise, which findings cannot be implemented anymore
Manage to transfer the decision making and the transparency of sustainable inputs earlier in the project
ARCHITECT’S INPUTS
Early integration in process
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Need for an Integrated Solution
SPATIAL PERFORMANCE
VISUAL PERFORMANCE
ENERGY PERFORMANCE
THERMAL PERFORMANCE
ACOUSTIC PERFORMANCE
INDOOR AIR QUALITY
BUILDING INTEGRITY
CLIMATE CONSCIOUS DESIGN
TARGET BASED DESIGN
INNOVATIVE SYSTEMS DESIGN
EFFICIENT PERFORMANCE MANAGEMENT
PEOPLE MANAGEMENT
ENERGY EFFICIENCY
WATER EFFICIENCY
SUSTAINABLE CONSTRUCTION
INDOOR ENVIRONMENT QUALITY
PERFORMANCES MANDATES
GREEN RATING SYSTEM /
GLOBAL SUSTAINABILITY INDICES
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BIM tools are the current best solution available for us to integrate the two different thinking minds together by embedding the required information in to a designer’s tool.
BIM provides the opportunity to simplify the technical requirements through embedded programming.
BIM tools like Revit, Bentley BIM and ArchiCAD provide the front end GUI which is friendly to the designers and familiar to them already.
Building Information Modeling Integrated Information Solutions
Integrated Solutions
from Vendors
Hevacomp and TAS
Simulator
Eco designer
from Archicad
Ecotect and Green
Building Studio
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Localization
Most tools and softwares are designed for other countries, climates, practices.
Singapore has a particular climate, and has its own codes and standards
Need of localizing the information to suit to the closest the practitioner’s needs
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Green mark tool
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SunCast: Solar penetration ApacheSim: Colour-coded results
VE-Ware / VE-Pro: EPC ApacheHVAC: Detailed HVAC simulation
ApacheSim: Natural ventilation visualisation
RadianceIES: Glare RadianceIES: Daylighting RadianceIES: Rights to light
RadianceIES: Daylighting VE-Compliance: energy reportage
FlucsDL: Daylighting levels
MicroFlo: Airflow regimes MicroFlo: Temperature contours MicroFlo: Airflow visualisation
A one stop solution to a holistic Green Mark assessment
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Users: Engineers (typically) Analysis: HVAC / Renewables Energy / Carbon Detailed daylighting Check: Compliance
Users: Engineers
Users: Energy / Facility Managers
Users: Architects / Engineers Analysis: Energy / Carbon (Constructions) Solar shading Daylighting Check: Compliance
Users: Architects Analysis: Energy / Carbon Shape / Form / Constructions
Solar shading Daylighting Define: Compliance
Users: Planners / Architects Analysis: Energy / Carbon Shape / Form / Constructions
Solar shading Daylighting Define:
Tailored for all stages of Building Design and Operation
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Green Mark tool – BIM interoperability
Autodesk Revit
Google SketchUp
Graphisoft ArchiCAD gbXML
Other gbXML
[IES Plug-ins]
IES <VE> ModelIT
IFC’s (under test)
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Navigator solution
Sustainability tailored to architects
Common sustainable analysis themes
Each theme is then broken into Navigators guiding the user through the analysis
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Specific results for each building project guides the architect through the early stage design decisions (that will provide continuity to the wider design team at later stages of design)
Navigator solution
Sustainability tailored to architects
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Report generation ability
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Report generation ability
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Report generation ability
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The key components of the GM tool include: - Energy Modeling - ETTV/RTTV calculation - Daylighting simulation - Artificial lighting design and optimization - MV systems design and optimization - Energy efficient features - Quantify Renewable energy credits - Water savings potential calculations - Validation of thermal comfort credits
Green Mark tool overview
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Green Mark Navigators will guide both the experienced and novice user through the workflow to perform a robust, repeatable and quality controlled Green Mark assessment
Green Mark tool overview
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Plug- Ins for Sketch-Up and Revit
GMT Green Mark tool
Easy to use – produce results at the touch of a few buttons
Data entry and outputs are managed
Based on real climate data and typical characteristics of buildings and systems
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Early stage reportage guides the architect towards solutions that are proven to work in their project’s climate.
Green Mark tool for Architects
Tool tailored for architects
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Simplify the process by creating a tool for easy decision making at every step of the project, even (especially) at the conceptual level; a tool for architects with the same precision but with simplicity
Automate and eliminate the time-consuming (ex. repetitive inputs), redundant steps in the process, for the project team as well as for the assessors
Live update of simulation results and Green Mark scores, to grasp the impact at every level of a change on the model: allows a true iterative process for improvement in the design
Advantages to Architects
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Reportage: Samples
Report generation : Comprehensible
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How does it ease Energy Modeling?
IN B
UILT
FRO
M R
EVIT O
R O
THER
PLATFO
RM
S
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Way forward
Integrate more and more information interoperability between BIM tools used by architects and software
The ultimate goal is to fully integrate it as a plug-in able directly from the BIM tool to perform the required analysis
Completely eliminate any redundant input; move from geometrical parameters to all data
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Green Mark Tool
A sneak preview…
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THANK YOU