Can you comment on successful ways you have used eQUEST and pitfalls you have seen? We are considering training our architects to use it for early building analysis on all projects.
You could write a technical paper answering that question. An important question, nevertheless. I will try to list a few things that come to mind immediately. My response is for locations other than California.
Successful ways:
· You can do parametric runs from the wizard mode and see which Energy Efficiency Measures (EEMs) provide the greatest value.
· Once you are in the ‘Detailed Data Edit’ mode, the ‘Global Parameters’ feature can be very useful to set a base value for a measure and simulate several variations.
Pitfalls:
· Garbage in, garbage out. (like with any simulation software)
· There is a learning curve. Our instructor in grad school told us that after two semesters, we would pick up a small percentage of the software’s capabilities.
· For most cases, you might have to create geometry from scratch.
· Do not use it for daylighting design (calculation of daylight levels), especially for deep floor plates with sidelighting only.
· Non-standard HVAC system types require detailed workarounds.
· In commercial buildings, if you don’t properly account for (underestimate) things like program, occupants and related ventilation loads, your envelope measures will show higher savings than they should.
We’re fortunate that eQUEST is made available at no charge. Because you have the advantage of starting from scratch, have your considered software alternatives like DesignBuilder that use the newer EnergyPlus engine?
Ramana Koti
Associate, BEMP, LEED AP BD+C
D +1 404 253 1478
LORD AECK SARGENT
A KATERRA COMPANY
From: Douglas Flandro