BIM Outsourcing Services in India

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BIM and Sustainability
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Agenda

• What is BIM
• BIM Vs Conventional Model
• What is Building Performance Analysis
• How BIM can make BPA easier?

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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 _at_
  http//www.conservesolution.com/what-we-do/bim-mod
  eling/

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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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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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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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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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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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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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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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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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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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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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Summary

• What is BIM
• BIM Vs Conventional Model
• What is Building Performance Analysis
• How BIM can make BPA easier?

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• Thank You