[Bldg-sim] Simulation Calibration

Bishop, Bill bbishop at PathfinderEngineers.com
Wed Aug 27 13:43:27 PDT 2008


To me, "calibration" would require loggers on the lighting, major HVAC
components and electrical panels to record such things as operating
schedules, temperatures and peak kW demand, and matching the model
results to the annual utility data, usually within 5% for annual
electrical consumption, gas use and electrical demand.  The model will
likely require several iterations to develop the calibrated baseline,
but then you have the increased confidence level in predicting "X% less
energy use" when you change "Y" in the baseline.

 

Regards,

Bill

 

William Bishop, EIT, LEED(r) AP | Pathfinder Engineers LLP

Mechanical Engineer

 

3300 Monroe Ave., Suite 306 
Rochester, NY  14618

TEL (585) 218-0730 Ext. 114
FAX (585) 218-0737 

bbishop at pathfinderengineers.com

 

www.pathfinderengineers.com

P Please consider the environment before printing this email

________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris
Mullinax
Sent: Wednesday, August 27, 2008 4:26 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Simulation Calibration

 

I have used equest a number of times to show clients the relative
effects of changing from standard efficiency to higher efficiency
equipment or say from T8 to T5 lighting systems. Generally, pretty basic
models. 

 

I now have a client a (a municipality) that is interested in
"calibrating" the models to get more precise information.  

 

I've heard the term "calibration" as it relates to models, and I think I
understand the concept, but how is this actually done?  Is it just a
matter of improving the details of the model, or is there testing of
walls and other systems to determine actual installed values?

 

Are there any good articles out there on this topic?

 

All help appreciated.

 

Thanks,

Chris Mullinax, P.E. LEED AP

 

pn: 770-387-1334

fx:  770-387-1383

chris at mullinaxsolutions.com

www.mullinaxsolutions.com

 

 

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