SME-Building Energy Simulation PPT

SME-Building Energy Simulation PPT - BuildingEnergy...

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Building Energy Modeling and Simulation An Overview of Available Software and Modeling Strategies Samina Mehar, Graduate Student Building Science,  Ryerson University January 2010
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What is Building  Modeling/Simulation ? Modeling  is the process of describing the  physical system (building). This will include  preliminary selection of HVAC equipment  (based on steady state calculations). Simulation  is determining the time  dependent behaviour of the building system.
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Building Energy Performance Simulation A building is a complex thermodynamic object that  accommodates  constantly changing energy flows between the different thermal zones  within the building and the outside. Main components  of the building energy simulation model are 1. The Building fabric and content (walls, floors, ceilings, occupants and  equipment) 2. The Plant components (HAVC equipment and other environmental  control systems) Considering the complexity of a building model, advanced  computer  simulations can analyze the effects of different ECMs (Energy  Conservation Measures) and their  complex interactions more  efficiently, comprehensively and accurately.
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What are the simulation results used for?   LEED energy performance calculations   Utility incentive calculations   Energy code compliance  calculations   Research   Policy development   Testing the building before it’s built   Verifying performance after it’s built
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What Answers can a Model Provide? Schematic architectural Building form, orientation, window  areas/ shading Who should be modeling for this?  How to communicate the  information? Detailed architectural Glare, quality of light Optimize insulation levels HVAC System type selection in response  to   building loads Specific design decisions (i.e.  equipment efficiencies) Air distribution system design Whole building energy Annual energy cost Carbon emissions
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Building energy simulation  how it works
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Building Energy Modeling Tools   Daylighting/ lighting modeling   Computational fluid dynamics (CFD)   Building component analysis   HVAC analysis   Building thermal analysis   Whole Building Energy Simulation programs
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Models Lighting Tools are   AGI32  Ecotect  IES  Lumen Micro  Radiance CFD  Tools: Flovent Fluent IES VE Microflo IES VE MacroFlo Lumen Micro Mean age of air with under floor air distribution Computational fluid  dynamics (CFD) ECOTECT AGI 32 Interior Lighting AGI 32 daylighting Source: www.techlitecorp.com Source: www.iesve.com
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Whole Building Energy Simulation Programs Bin analysis (spreadsheet tool) Load calculation software (Trane’s Trace or  Carrier HAP) Hourly building energy simulation program
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SME-Building Energy Simulation PPT - BuildingEnergy...

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