Monitoring Based Commissioning using Visualization Techniques Ben Burgoyne, CCP, LEED AP Session Number R1.47 3/6/214 9: am Room 347
1. Describe how Operating Costs can be REDUCED and Occupant Comfort can be INCREASED by applying monitoring based Cx. 2. Understand the innovative technique to VISUALIZE large amounts of monitoring data (e.g. BAS data) USING it for monitoring based Cx. 3. IDENTIFY and REDUCE the gap between the actual and expected building performance through monitoring based Cx 4. UNDERSTAND the benefit of visualizing large amount of monitoring data over a long time period Learning Objectives
What is Monitoring Based Commissioning? What do you do with Monitoring Data? How are the two brought together? Examples
What is Commissioning?
Commissioning Process: verifying and documenting that the facility and all of its systems meet the Owner's Project Requirements. - ASHRAE Guideline -25 The Commissioning Process 4. Definitions - ASHRAE Standard 22-213 Commissioning Process for Buildings and Systems 3. Definitions
*What are the most important goals for your facility? Optimal Performance Occupant Satisfaction Energy Consumption Owner s Project Requirements
Through onsite testing? What doesn t this tell us? How?
Through the BMS? What doesn t this tell us? How?
MBCx is an ongoing performance analysis of an operational building that provides real-time equipment performance information to the building operators... - LEED v4 BD+C_Reference Guide Monitoring-Based Commissioning Basics, page 397 Monitoring-Based Commissioning (MBCx)
Monitoring Based Commissioning (MBCx) real-time equipment performance information
What do you do with the data?
Bar Chart
Fall Winter Spring Summer Fall Winter Spring Summer Fall Bar Chart
Fall Winter Spring Summer Fall Winter Spring Summer Fall Time Bar Chart Operation Pattern
Line Plot
Line Plot
Line Plot
Time Mon 6am 6pm Tues 6am 6pm Wed 6am 6pm Thurs 6am 6pm Fri 6am 6pm Line Plot Operation Pattern
Line Plot
Scatter Plot
Scatter Plot
Scatter Plot
Scatter Plot
Temperature Setpoint (during Operation) ( F) Scatter Plot Operation Pattern
*Any other ways to visualize? *How familiar are we with excel/other visualization tools? Bar Chart (energy consumption) Line Plot (measured values over time, i.e. Temperature) Scatter Plot (controls/inter-operation, i.e. Coil Valve vs. Temperature) What do you do with trend data?
Fall Winter Spring Summer Fall Winter Spring Summer Fall Time What shapes do I see forming? Time Mon 6am 6pm Tues 6am 6pm Wed 6am 6pm Thurs 6am 6pm Fri 6am 6pm Operation Patterns Temperature Setpoint (during Operation) ( F) What other data should be visualized? What will the Operation Patterns look like?
Visual Sequence of Operation 1. Damper Control 2. Supply Temp Control 3. Supply Temp Setpoint Control 4. Supply Static Pressure Control 5. Supply/Return Fan Offset 6. CO2 Control 7. Optimal Start-Up
Visual Sequence of Operation
Combination 1 Hot Water Coil Control Valve vs. Chilled Water Coil Control Valve? 1 1 1 Heating Coil Valve [%] 75 5 25 Heating Coil Valve [%] 75 5 25 Heating Coil Valve [%] 75 5 25 25 5 75 1 Cooling Coil Valve [%] 25 5 75 1 Cooling Coil Valve [%] 25 5 75 1 Cooling Coil Valve [%] Visual Sequence of Operation
Combination 2 Chilled Water Coil Control vs. Discharge Air Temperature? 1 1 1 Cooling Coil Valve [%] 75 5 25 Cooling Coil Valve [%] 75 5 25 Cooling Coil Valve [%] 75 5 25 TSA-TSA.SP [ F ] TSA-TSA.SP [ F ] TSA-TSA.SP [ F ] Visual Sequence of Operation
*What points do you most want to see trended over time? A full collection of Operation Patterns a complete visual sequence of operation. Visual Sequence of Operation
Logistics
Details for Recording Points to trend Timeframe MBCx Setup Coordination is Key
Set up monitoring data Perform analysis (make comparisons) Implement fixes / changes Check resulting energy consumption The MBCx Pathway Repeat
Examples
1 1 1 Heating Coil Valve [%] 75 5 25 Heating Coil Valve [%] 75 5 25 Heating Coil Valve [%] 75 5 25 25 5 75 1 Cooling Coil Valve [%] 25 5 75 1 Cooling Coil Valve [%] 25 5 75 1 Cooling Coil Valve [%] Operation Pattern Before Examples AHU Cooling and Heating Coil Valves After
Heating Coil Valve [%] 1 75 5 25 25 5 75 1 HR Loop Valve [ % ] Heating Coil Valve [%] 1 1 75 5 25 25 5 75 1 HR Loop Valve [ % ] Operation Pattern Before After Examples AHU Run-Around Heat Recovery Loop Heating Coil Valve [%] 75 5 25 25 5 75 1 HR Loop Valve [ % ]
Hour of the Day [hr] 3 6 9 12 15 18 21 24 Sun Mon Tue Wed Thu Fri Sat Days of the Week Operation Pattern Examples AHU Operation Time Before After
max min 3 6 9 12 15 18 21 24 Sun Mon Tue Wed Thu Fri Sat 1 Supply Temp SP [ C ] Heating Coil Valve [%] 75 5 25 Outside Temp [ C] 25 5 75 1 HR Loop Valve [ % ] Cooling Coil Valve [%] 1 75 5 25 TSA-TSA.SP [ F ] Heating Coil Valve [%] 1 75 5 25 25 5 75 1 Cooling Coil Valve [%] Thank You BEN BURGOYNE, CCP, LEED AP Hour of the Day [hr] Days of the Week 1424 K Street NW, Suite 5, Washington, D.C. 25 main +1 22 68 1334 email b.burgoyne@baumann-us.com www.baumann-us.com The Future