This presentation discusses how BIM can effectively used deliver sustainability in projects. For more details visit @ http://www.conservesolution.com/what-we-do/bim-modeling/

1. BIM and Sustainability
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2. Agenda
• What is BIM
• BIM Vs Conventional Model
• What is Building Performance Analysis
• How BIM can make BPA easier?
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3. Introduction
• Sustainability has become a mandatory requirement in many
building codes
• In Qatar GSAS Certification is a part of section 7 QCS 2014
• On the other hand in recent days BIM is playing a key role in
design, construction and operation of buildings
• This presentation discusses how BIM can effectively used
deliver sustainability in projects. For more details visit @
http://www.conservesolution.com/what-we-do/bim-
modeling/
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4. What is BIM?
• BIM is an abbreviation of Building Information Model.
• A BIM Model of a building is an intelligent Computer Model
to create, modify, collaborate and coordinate information
throughout the lifecycle of the building ie Design,
Construction and Operations Phase.
• The information stored in the BIM Model plays a key role and
makes it special compared to conventional 2D or 3D
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5. BIM Vs Conventional Model
• A wall in a conventional
model is a box with the given
dimensions
• Non Parametric
• It replicates the physical wall
and reflects its properties such
as materials, finishing, thermal
properties, structural
properties etc
• Parametric: When
modifications are made in wall,
the change is reflected in all
associated elements. Example
when the height of wall is
reduced, the roof attached to
wall automatically comes down
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6. What is Building Performance Analysis?
• Building Performance Analysis is done to evaluate the
following during the design stage
– Orientation of the building
– Thermal Performance of the building envelope
– Cooling Load and Heating Load of the building
– Lighting and Daylight
– Impact of shading of adjacent structures
– HVAC system Performance
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7. How BIM makes BPA easier
• Traditionally each element in BPA is done using different tools
but with BIM Model complete Performance Analysis can be
done with a single tool like REVIT
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8. Orientation Analysis
Orientation of the building is evaluated with sun path diagram which in turn
depends of the location of the building.
BIM will the precise coordinates of the building which makes it easier to
perform sun path analysis and hence evaluate various orientations and
architectural features such as shading devices of the building
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9. Thermal Performance of Building
Envelope
BIM Model will have the thermal properties such as
– Thermal Conductivity
– U Value for glazing/Curtain wall
– Shading coffined
– Reflectance
– Absorbvity
of the building envelope elements such as external wall, roof, windows,
curtain walls etc.
The thermal properties along with orientation will be used to evaluate
Thermal performance of the building
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10. Cooling Load and Heating Load
Calculation
All information required to calculate the cooling load or heating load is part of
the BIM model. This includes
– Orientation of the building
– Building envelope properties
– Occupancy details
Hence BIM tools like REVIT can be used instead is using separate tools like
HAP, Trace etc
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11. Lighting & Daylight Simulation
•Traditionally Daylight simulation is done through Autodesk software ecotect
and lighting simulation is done by Dialux or equivalent software.
•With BIM since the glazing properties and luminaire data is a part of the BIM
Model, it can be done using BIM Software such as REVIT
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12. Shading Analysis
Shading Analysis
Shading analysis requires the location of the building and adjacent
structures. Given this information to the model.
BIM Model can be done to perform shading analysis
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13. HVAC System Performance
Generally Energy modeling and simulation software such as eQuest is used
to evaluate various HVAC system types.
Given the HVAC performance details as BIM Model input in addition all the
inputs discussed before.
The model can be used to evaluate HVAC system performance
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14. Summary
• What is BIM
• BIM Vs Conventional Model
• What is Building Performance Analysis
• How BIM can make BPA easier?
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15. Thank You
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