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Building Energy Modeling Class 2. Energy Modeling in the Design-Construction Work Flow. 4 points. Computer-based integration of design & production Decreasing linearity of design process, work flow What is needed for energy modeling and when it can occur in the design process
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Building Energy ModelingClass 2 • Energy Modeling • in the • Design-Construction Work Flow
4 points • Computer-based integration of design & production • Decreasing linearity of design process, work flow • What is needed for energy modeling and when it can occur in the design process • Full life-cycle use of building/energy models
Modern Design-Production Process • Global, computer-based integration of design-production processes • CAD-CAM in manufacturing • Building Information Modeling (BIM) • BIM • Evolved from CAD • AutoDesk – REVIT – VASARI ?? • BEM integration – cutting edge
Design Work Flow • Client - Program • Architect • Engineers • Contractors & Subs
Traditional design process • Linear and sequential • Engineering in "design development" Old-style Engineer’s Calculation Tools – “Ductolator”
Architect’s first use of energy calcs + models ? • Code Compliance • State energy codes • Plan Approval by local authority RESCheck and COMCheck
IntegratedDesign • Recursive • Iterative • Interactive
Source: earthly ideas.com Integrated Design
Energy Modeling in the design work flow • Conundrum: energy model needs detailed inputs but less useful once details locked in • Many key elements - siting, orientation - are fixed in early stage of design
SEFAIRA • “Fast tool” of current choice • See Prof Christian Volkmann • Open Studio • SKETCH-UP to EnergyPlus Importance of the schematic design phase • Formulate dimensions of performance • Concepts & “Schemes” - compare alternatives • Adjustments before lock-in
Quantitative Approach – using METRICS • Dimensions of performance • Beyond energy, code • Cost • Comfort • Usability • Resilience
model use over full building life-cycle • BIG DATA • Interval utility data • Data from BAS • Occupant feedback • “Standards of Care”, on-going services • Interest from major IT entities – IBM, CISCO etc