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Operator Effectiveness with
Building Automation Systems
Information & Action
CUNY Building Performance Lab
City University of New York
Michael Bobker
Manorge Joseph
Research Focus:
DEEZ GUYS ….. & THEIR BAS
Our industry
research partner,
VORNADO REAL
ESTATE TRUST
Research Focus:
DEEZ GUYS ….. & THEIR BAS
The Standard BAS Interface
Real-time “snapshot”
Patterns over time?
TREND LOG VISUALIZATION –
PATTERN RECOGNITION
Outside Air Temp, Return Air Temp, Mixed Air Temp at an AHU or RTU (“economizer”)
GOOD - MIN OA
WHEN OAT > RAT
TOO MUCH HOT
OA
Incorrect Outside Air. Very expensive. Quite common.
TEACHABLE ? ACTIONABLE ?
After just a little practice, you can readily see
that this is …
Constant off-set - Sensor probably out of Calibration
Operator Feedback
USABLE ?
ACTIONABLE ?
“ YES ”
Many points for trending…
• On-off
scheduling
• Static pressure
Problem is…..
• Fan speed
with so many possible plots,
• Supply &
Return Air
Temperatures
• Coil actuation &
valve leakage
What to look at?
• VAV box
positions
• Re-heat
actuation
• Central Plant
equipment
Designing how to get there with
dashboards and drill-downs
KPI
Energy as an
Indicator
Whole building KPIs
Whole
Building Level
System Level KPIs
System Level
Equipment KPIs
Alarms, Action Recommended
Diagnostics
Preformatted
graphs
GRAPHS
Customized
graphs
AHU 1
AHU 2
Better HMI for better performance?
Can these “Key Intermediaries” work
with visualized “big data”?
Enthusiastically,
YES.
Proven training
product – Building Re-Tuning
For more on…
• Building Re-Tuning,
see the Pacific Northwest National Lab website
www.buildingretuning.pnnl.gov
• Operators figuring out better operation in their plants,
see CUNY School of Professional Studies YouTube video
series “Heroes in the Basement”
• On-going BAS work at the CUNY Building Performance
Lab, contact
Michael Bobker, mbobker@ccny.cuny.edu
Honey Berk, honey.berk@cuny.edu
Manorge Joseph, manorge.joseph@cuny.edu
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