Commissioning for Sustained Building Performance Building Performance Heifer Village Little Rock, AR 09/17/10 Retrocommissioning | RCx (Existing Building.

Comm

issioning for Sustained Building Perform

ance

Heifer Village Little Rock, AR

09/17/10

Retrocommissioning | RCx(Existing Building Commissioning | EBCx)

University of IllinoisChampaign, IL

Damon McFall, PE, LEED APwww.fs.illinois.edu/retro

http://www.fs.illinois.edu/retro

Commissioning for Sustained Building Performance

2

State Budget Gaps as of 7/15/10

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http://www.cbpp.org/cms/?fa=view&id=711


3

State Troubles = Public University Troubles


4

Current Financial Woes @ Universities

10%

How Are Public Institutions to React?

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16%


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32%


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• “I have never seen such a difficult time for colleges and universities in my 40 years as an educator.” - SIU Pres. Mr. Glenn Poshard http://www.universitybusiness.com/newssummary.aspx?news_date=2009-09-25&news_id=20490


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http://www.universitybusiness.com/newssummary.aspx?news_date=2009-09-25&news_id=20490


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Institutional Commitments to Fulfill

“…achieving energy independence for the U.S. as quickly as possible.”http://www2.presidentsclimatecommitment.org/html/commitment.pdf

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http://www.presidentsclimatecommitment.org/


9

Reduce Energy UseChilled Water and Steam Meter Projects

Steam Trap ReplacementsLEED NC Silver Rating (NEW & REMODELS)

Lighting RetrofitsEnergy RetrofitsThermal Storage

Energy Service Companies (ESCO)

Retrocommissioning (RCx)Existing Building Commissioning (EBCx)


10

Retrocommissioning @ Illinois

H V A C


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Retrocommissioning @ Illinois

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“40% to 60%” - U.S. D.O.E.

V A C


12

Effective Institutional RCx Teams

• Optimal Solution– HVAC & Controls Expertise as Leaders– Experienced Control Programmers

Helmink McFall O’Brien NiebuhrMessman


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Effective Institutional RCx Teams

• Optimal Solution– HVAC & Controls Expertise as Leaders– Experienced Control Programmers– Dedicated & Skilled Composite Crews

Helmink McFall


14

Funding in a Deficit Environment

• Students

• Energy Cost Avoidance

• State of Illinois Grants

(Logos copyrighted by companies)

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http://developers.face.com/examples/tagger-widget/


15

Creating Synergy: Essential

• Encouraging Positive Working Relationships– Friendly staff – Weekly meetings – Immediate response

• Develop Team Environment– Team Responsibility– Team Decisions– Team Benefits


16

Succeeding One Building at a Time

“A great team to work with…” – Elizabeth Dennison, Coordinated Sciences Lab

“An excellent team to work with…” – Janet Kane, Physics

“One of the few areas of good news…” – Terry Ruprecht, Director of Energy

Campus Energy Use Index reduced 17.3% in part due to Retrocommissioning Efforts


17

RCx @ Illinois: History 101

3 years18 people

27 buildings$2,600,000 spent$3,100,000 saved

378,821,000,000 BTUs avoided


18

The Journey

Krannert Center for the Performing ArtsACES Library and Alumni CenterAnimal Sciences LaboratorySiebel Center for Computer Science


19

Shared Commonalities

19 of

Chilled Water Electrical Steam


20

Krannert Center for the Performing Arts

196720 of


21


Pneumatic Controls


22



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24/7$1,200,000


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Strategy: Occupancy Schedules

50%

100%

OFF

5 pm11 pm

7 am


25


Strategy: Control System Upgrades


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35% $300,000

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$190,000


27

ACES Library & Alumni Center


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14,000 CFM


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24/7$475,000


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ACES Library & Alumni Center• Strategy: Occupancy Schedules

– (3) Distinct Calendar Periods• Spring / Fall Semesters: 8am to 11pm• Summer Semester: 8am to 9pm• Summer, Winter, Spring, Thanks Breaks: 8am to 5pm

– What Happens?• Exhaust Fans Stop• OA Dampers Close• Static Pressure Reduced 100%

100%100%


31

ACES Library & Alumni CenterStrategy: Control System Analysis

– Pneumatic Review– Confidence in thermostats– Faulty Humidity Sensor– Reheat System Schedule– Reduced the minimum VAV CFM


32


42% $110,000

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$70,000


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Animal Science Laboratory


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Animal Science Laboratory


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Animal Sciences Laboratory

24/7$571,000


36

Animal Sciences LaboratoryStrategy: Occupancy Schedules Where PossibleStrategy: Review Lab Exhaust System


37

Animal Sciences Laboratory

25% $60,000

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$102,000


38

Siebel Center for Computer Science


39

• Reheat Coil Issues• Control Sequences

– Occupancy Sensor– “Night Setback” / Unoccupied– Lack of dead band



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24/7$1,300,000


41

• Connected occupancy sensors to HVAC• Modified DDC programming

• Night Setback Sequence• Increased dead band ranges on thermostats

• Recommended system cleanup• Recommended 100+ HW reheat valves



42

Re-balanced entire building• Minimum VAV CFMs• Maximum VAV CFMs


Lecture Hall Zone• VFDs• CO2 Monitoring• Scheduling


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42% $290,000

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$277,000


44

• Install required DDC Controls• Implement Occupancy Schedules• Reduce / Eliminate EA & OA• CO2 and RH feedback• Improve Sequences of Operation• Continuous commissioning by

temperature control graphics• Support & Encourage Occupant &

Mechanic Behavioral Change

Strategies Frequently Used

Comm

issioning for Sustained Building Perform

ance

Heifer Village Little Rock, AR

09/17/10

Thank you!

University of IllinoisChampaign, IL

Damon McFall, PE, LEED [email protected]

www.fs.illinois.edu/retro

© Damon McFall, PE, LEED AP – August 2010Copy or distribution of this presentation is strictly permitted without direct written consent.

http://www.fs.illinois.edu/retro

Commissioning for Sustained Building Performance Building Performance Heifer Village Little Rock, AR 09/17/10 Retrocommissioning | RCx (Existing Building.

Documents

public institutions

current financial woes

companies http

energy independence

public university troubles

comtimezoneusa http

glenn poshard http

state troubles