The goal of this discussion is to demystify building performance modeling. Computer-simulations give you a more complete picture of how various context and design factors can affect the performance of your space. Modeling information can help you analyze the impacts of your design decisions and determine how to most effectively meet project goals.
Energy modeling is also valuable tool used for code compliance and LEED points. Not to mention the fancy graphics that models produce to show your clientele your commitment to performance-based design.
This discussion will present various opportunities that can arise from building performance simulations with analysis at the early design, whole building, and building component levels. We will examine the following types of analysis:
• Climate
• Daylighting
• Massing and orientation
• Whole building energy usage forecast
• Fenestration design
• Façade development
• Zone level energy performance
• Baseline and design case models
• System selection and optimization
For more information on this training, contact Brittany Grech at bgrech@yrgsustainability.com or (347) 843-3085.
2. Learning Objectives Describe capabilities of building modeling Recognize model outputs Be familiar with when simulation can be used to assist design decisions Understand how modeling analysis can be implemented into your design process
3. Agenda Energy modeling Benchmarks and rating systems Performance modeling Design optimization Integrated design process Lessons learned
18. East Solar Location- Low Best practice- Vertical fins West Solar Location- High Best practice- Horizontal Overhangs Sun Path- East and WestFaçades
19. North Solar Location- Low Best practice- None or Vertical fins South Solar Location- Above Best practice- Horizontal Overhangs Sun Path- North and South Façades
24. 1:4 1:3 1:2 1:1 Further Shading System Optimization – Vertical Fin Performance Metric
25. Depth-to-Distance Ratios Horizontal Fins Fin Façade (~84°) Max Incline Condition 1 to 2.8 ratio Tower Interior Max Summer (75.9°) Max Winter (29.0°) Fin Façade (~90°) Typical Condition 1 to 3.6 ratio Tower Interior Max Summer (75.9°) Max Winter (29.0°) Shading Fins – Range of Performance
36. What is a Building? Shelter for occupant comfort What is Performance? “The manner in which or the efficiency with which something reacts or fulfills its intended purpose” What is Simulation? Computer program for representation of the behavior or characteristics What is Building Performance Modeling?
48. Optimization Pathway HVAC AND CONTROLS RENEWABLE ENERGY SYSTEM SELECTION ENERGY COST BUDGET DEMAND REDUCTION PARAMETRIC ENERGY USAGE ENVELOPE AND DAYLIGHT RADIATION AND DAYLIGHT ORIENTATION AND PLACEMENT CLIMATE AND CONTEXT 1 2 3 4 5 Model Outputs Modeling Analyses for Integrated Design
The building is oriented along an east-west axis to maximize the use of daylight and natural ventilation. North-facing clearstory glazingShaded southern vision glazing and south-facing light shelves
The current model will show
Building form, mass, orientation, contextEvaluate benefit of architectural features like sun shades
These reuslts are produced with a combination of simulations run in Dubai climate. These are the assumption taken for the model. May or may not be shared