Srinivas Katipamula, Ph.D. Staff Scientist, Battelle Pacific - - PowerPoint PPT Presentation

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Srinivas Katipamula, Ph.D. Staff Scientist, Battelle Pacific - - PowerPoint PPT Presentation

Jun 23, 2023 11 likes •318 views

Adapted from a

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SLIDE 1
  • 1

PNWD-SA-9511

Adapted from a presentation by:

Srinivas Katipamula, Ph.D.

Staff Scientist, Battelle Pacific Northwest Division

Bill Koran, P.E.

Senior Engineer, Quantum Energy Services and Technologies

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SLIDE 2
  • ECAM Capabilities
  • Analysis of Interval Meter Data with ECAM

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PNWD-SA-9511

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SLIDE 3
  • A tool to assist with analysis of building performance data
  • Facilitate the types of analyses that energy engineers,

commissioning providers, and building operators might need to make

  • “Semi-automation,” not complete automation of the analyses
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PNWD-SA-9511

  • Because analyses is not completely automated, the tool is

flexible, supporting additional analysis without limiting any normal spreadsheet functions

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SLIDE 4

!"#$%&'

  • Excel 2007/2010 compatibility
  • Full time history chart, filterable to selected months or days
  • Load profile as box plots
  • Load duration chart (histograms/frequency distributions)
  • Chart to check input schedule
  • Matrix charts

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PNWD-SA-9511

  • Matrix charts
  • Metrics by daytype, occupancy, and month
  • Data summaries
  • Additional scheduling periods for startup and shutdown
  • Integrated user guide/help
  • PNNL re-tuning charts (See http://buildingefficiency.labworks.org/large.stm for more details)
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SLIDE 5

( '

  • Detection

– Tool does not provide detection directly – Assists with performance tracking – Provides the ability to investigate the relationships between variables

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between variables

  • Diagnostics

– Tool does not provide diagnostics – Future versions may provide some limited diagnostic capabilities, but this is not the focus of the tool – General intent is to maximize the user’s ability to benefit from whatever data is available

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SLIDE 6

')*

  • 1. Select data from

existing spreadsheet

  • 2. Map points
  • 3. Create schedules

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PNWD-SA-9511

  • 3. Create schedules

(optional)

  • 4. Input energy project

dates (optional)

  • 5. Create metrics and

charts

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SLIDE 7

+, -.*

DateTime Outside Dry Bulb 325 COMMON CHWS 326 COMMON CHWR 328 CHILLER 1 AMPS 342 COM CDW SUPPLY 343 COM CDW RETURN 345 A CHILLER ON 414 SCHWP-5 KW 415 SCHWP-6 KW 416 SCHWP-7 KW 8/23/04 12:00 AM 67.4 41.9 48.5 226.1 69.2 77.3 100 5 0.8 8/23/04 12:15 AM 67.5 42 48.7 224.3 69 77.1 100 4.8 1.3 8/23/04 12:30 AM 67.3 41.6 47.6 206.9 68.9 76.3 100 4.7 1.6 8/23/04 12:45 AM 67.1 41.8 47.7 206.7 68.5 75.8 100 4.6 1.3 8/23/04 1:00 AM 67.1 42.2 47.6 195.9 68.2 75 100 4.7 1.4 8/23/04 1:15 AM 67 41.8 47 193.8 68.1 74.8 100 4.6 8/23/04 1:30 AM 67 42 46.2 168.1 67.6 72.9 100 4.7

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8/23/04 1:45 AM 66.8 41.9 45.3 152.1 67.5 71.9 100 4.6 0.6 8/23/04 2:00 AM 67 42.2 45.3 150.2 67.8 71.9 100 4.6 0.6 8/23/04 2:15 AM 67.1 42 48.5 67.6 74.6 100 4.8 0.9 8/23/04 2:30 AM 67.1 41.6 47.7 68.8 75.7 100 4.5 0.5 8/23/04 2:45 AM 67 42 48.4 68.2 75.1 100 4.7 0.8 8/23/04 3:00 AM 67.1 41.6 47.5 68.4 75.1 100 4.5 0.9 8/23/04 3:15 AM 67.2 41.7 47.5 68.3 74.8 100 4.7 0.8 8/23/04 3:30 AM 67.4 42.4 47.9 68.2 74.4 100 4.6 0.8 8/23/04 3:45 AM 67.4 43.5 48.6 68.3 73.8 100 4.7 0.9 8/23/04 4:00 AM 67.5 45 49.4 68.1 73 100 4.8

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SLIDE 8

)*/0)

1a. 1b.

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1c. 1d.

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SLIDE 9

)*"0**

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User’s points are mapped to common point names as per User’s points are mapped to common point names as per A Specifications Guide for Performance Monitoring Systems A Specifications Guide for Performance Monitoring Systems

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SLIDE 10

)*10)*

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SLIDE 11

)*20 *3*

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SLIDE 12

)*40

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SLIDE 13

*5

  • Time stamp disaggregation
  • Daytyping
  • Occupancy

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  • Pre/Post Energy Project
  • Normalizations
  • Calculations
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SLIDE 14

*6

  • Can be normalized:

– Building area (e.g. W/sqft) – Cooling tons (e.g. kW/ton) – cfm (e.g. Watts/cfm)

  • Can be filtered by:

– Year – Month – Pre/post time periods

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PNWD-SA-9511

– cfm (e.g. Watts/cfm) – gpm (e.g. gpm/ton) – Pre/post time periods – Daytype – Time of day – Occupancy – Weather conditions – Status of equipment – Combinations

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SLIDE 15

.5 ''

  • Equipment Status
  • Demand (kW)
  • Chilled water tons
  • from demand (kW) or

current (amps)

  • from current (amps)

approximate calculation

  • whenever flows and

temperatures are available

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PNWD-SA-9511

  • Watts per square foot
  • CFM per square foot
  • kW per ton
  • gpm per ton

temperatures are available

  • for all electrical demand

points (kW)

  • for all air flow points
  • for all related points
  • for all related points
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SLIDE 16

!

  • Load profiles

– Raw data – Averages – Pre/post – By daytype – Calendars

  • Scatter charts

– Raw data – Averages – Pre/post – By daytype – By occupancy

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– Calendars – By occupancy – By time of day – Choice of independent variable – Multiple points

Filtering capabilities are provided for all types of charts

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SLIDE 17

756*

2.5 3.0 3.5 4.0 4.5 Watts_perSF

Weekday

Year (All) Month (All) MonthYr Sep 2006 Weekday (All)

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0.0 0.5 1.0 1.5 2.0 12:00 AM 2:00 AM 4:00 AM 6:00 AM 8:00 AM 10:00 AM 12:00 PM 2:00 PM 4:00 PM 6:00 PM 8:00 PM 10:00 PM Avg ElecMtr_Wa

Saturday Sunday Holiday

Weekday (All) Day (All) Holiday (All) 5degBin (All) 1degBin (All) TempRng (All)

Filtering Options

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SLIDE 18

75

October

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

1 2 3 4 5 6 7 8 9

2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 6 8 6 8 6 8 6 8 6 8 6 8 6 8

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10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8

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SLIDE 19

1875

7/1/2006 7/2/2006 7/3/2006 7/4/2006 7/5/2006 7/6/2006 7/7/2006 7/8/2006 7/9/2006 7/10/2006 7/11/2006 7/12/2006 7/13/2006 7/14/2006 7/15/2006 7/16/2006 7/17/2006 7/18/2006 7/19/2006 7/20/2006 7/21/2006

4.00 5.00 12:00 AM

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12:00 AM 3:00 AM 6:00 AM 9:00 AM 12:00 PM 3:00 PM 6:00 PM 9:00 PM

7/21/2006 7/22/2006 7/23/2006 7/24/2006 7/25/2006 7/26/2006 7/27/2006 7/28/2006 7/29/2006 7/30/2006 7/31/2006

0.00 1.00 2.00 3.00 12:00 AM 2:00 AM 4:00 AM 6:00 AM 8:00 AM 10:00 AM 12:00 PM 2:00 PM 4:00 PM 6:00 PM 8:00 PM 10:00 PM 7/1/2006 7/2/2006 7/3/2006 7/4/2006 7/5/2006 7/6/2006 7/7/2006 7/8/2006 7/9/2006 7/10/2006 7/11/2006 7/12/2006 7/13/2006 7/14/2006 7/15/2006 7/16/2006 7/17/2006 7/18/2006 7/19/2006 7/20/2006 7/21/2006 7/22/2006 7/23/2006 7/24/2006 7/25/2006 7/26/2006 7/27/2006 7/28/2006 7/29/2006 7/30/2006 7/31/2006 4.69-5.00 4.38-4.69 4.06-4.38 3.75-4.06 3.44-3.75 3.13-3.44 2.81-3.13 2.50-2.81 2.19-2.50 1.88-2.19 1.56-1.88 1.25-1.56 0.94-1.25 0.63-0.94 0.31-0.63 0.00-0.31

Surface Chart

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SLIDE 20

9-75

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PNWD-SA-9511

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SLIDE 21

3.0 4.0 5.0 6.0 ecMtr_Watts_perSF

During Changes Before 11-15-06 After 1-24-07

)6:

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PNWD-SA-9511

0.0 1.0 2.0 20 40 60 80 100 120 AHU_TempOa Avg Elec

Excel won’t create Scatter Charts based on PivotTables (PivotCharts). ECAM includes Scatter Charts based on PivotTables.

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SLIDE 22

)6* &9

800 1,000 1,200 kW

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200 400 600 20 30 40 50 60 70 80 90 100 1degBin Avg ElecMtr_kW

Occ Unocc

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SLIDE 23

%:!7: %7;))<7)

23

%7;))<7)

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SLIDE 24
  • .*0756*

24 Hour Occupied

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PNWD-SA-9511

24 Hour Occupied Schedule

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SLIDE 25
  • .*0756*

Building

  • ccupied

(6 AM) Unoccupied/ shutdown

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Morning startup

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SLIDE 26
  • .*0*559

50% load reduction between peak and nighttime Long shutdown period

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5 day occupied schedule and unoccupied on weekends

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SLIDE 27
  • .*0=559

80% Peak Reduction

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Good startup/shutdown (6 AM/6 PM) Building not occupied

  • n weekend
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SLIDE 28
  • .*0.*65

5.*.

50% reduction 15% Peak load reduction

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Additional 30% reduction at night

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SLIDE 29

.*.*5.& 9

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SLIDE 30

.*: 5.&9

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