ashrae illinois spring conference retro-commissioning and … · 2015-03-12 · ashrae illinois...
TRANSCRIPT
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Speakers:
Holistic Approach to Optimization of Educational Facilities
ASHRAE Illinois Spring Conference – Retro-commissioning and Energy Auditing
Ruairí Barnwell Principal
Energy Services Leader
Ben Talbot Associate
Senior Building Analyst
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After attending this session, the attendees will be able to:
1. Learn about evolving needs in Educational Facilities and how the Retro-
commissioning and Energy Assessment processes can be applied to meet these
needs
2. Understand the relationship between Building Performance, Indoor
Environmental Quality, Energy Reduction Goals and Student Achievement
3. Discuss industry factors that are driving energy efficiency in Educational Facilities
such as Architecture 2030 challenge, increasingly stringent Energy Codes and
High Performance Building Standards
4. Recognize the Potential of the Retro-commissioning process in the roadmap to
net-zero energy for Educational Facilities
LEARNING OBJECTIVES
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STUDIO
STUDIO
SMALL
WORKSHOP
ADMIN
LARGE
WORKSHOP
LARGE
WORKSHOP
INTERDISCIPLINARY
STUDIO
OPEN BOX
THINK
TANK
THINK
TANK
THINK
TANK
THINK
TANK
CLASS
ROOM
CLASS
ROOM CLASS
ROOM
CLASS
ROOM
CLASS
ROOM
CLASS
ROOM CLASS
ROOM
CLASS
ROOM
CLASS
ROOM
CLASS
ROOM
EDUCATIONAL SPACE NEEDS ARE CHANGING
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THAT WAS THEN
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THIS IS NOW
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21st CENTURY LEARNING ENVIRONMENTS
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CHANGING WORKPLACE NEEDS
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1. Condition
2. “Fit”
3. Performance
1. Environment • Adequate Ventilation
• Thermal Comfort
• Air Quality
• Lighting/Daylighting
• Acoustics
2. Energy Use • Gas
• Electric
• Water
STUDENT & BUILDING PERFORMANCE
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60% of the schools had higher attendance rates, equaling one fewer absence per student per year
87% reported a positive impact on student health
85% reported positive effect on their health and productivity
71% perceived the building has a positive effect on achievement
71% perceived a positive effect on student behavior
STUDENT PERFORMANCE
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Think Differently
Think Holistically
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45 SCHOOLS Build New vs. Renovate?
Validate Capital Plan
$111 Million 21st Century Learning Environments (Capital Plan) $139 Million deferred maintenance
BUILDING PERFORMANCE MASTERPLAN
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ENERGY CONSUMPTION Benchmark existing facilities
• Understand
• Energy use
• Energy cost
• Energy demand
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ENERGY ANALYSIS TOOLS
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ENERGY CONSUMPTION
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RPS 205 BENCHMARKING
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RPS 205 BENCHMARKING
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RPS 205 ENERGY PLAN
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ENERGY CONSUMPTION
Ellis EUI = 105 kBtu/SF Lewis Lemon = 75 kBtu/SF
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• Occupant Thermal Environment Survey
• Data Logging – Temp/RH/Light/CO2
• Field Measurements – Light/Acoustics
DATA COLLECTION PROCESS
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Data Logging Workbook for O&M Staff and Science Students
DATA COLLECTION PROCESS
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THERMAL COMFORT • ASHRAE 55 : Occupant Thermal Environment Survey
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-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
Bar
bour
Bey
er
Blo
om
Bro
okvi
ew
Car
lson
Che
rry
Val
ley
Con
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Den
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Elli
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Fro
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Gre
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Has
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John
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Ken
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Whi
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wan
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Mean Vote – Elementary Schools
• ASHRAE 55 : Occupant Thermal Environment Survey
THERMAL COMFORT
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DATA COLLECTION PROCESS
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Ellis PPD = 10% Lewis Lemon PPD = 20%
THERMAL COMFORT & ENERGY
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INDOOR AIR QUALITY ASHRAE Standard 62.1 - 2010 : Logged Data
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INDOOR AIR QUALITY
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
BarbourBeyer
Bloom
Brookview
Carlson
Cherry Valley
Conklin
Dennis
Ellis
Froberg
Gregory
Haskell
Hillman
Johnson
Kennedy
KingKishwaukee
LathropLewis LemonMarsh
Mcintosh
Montessori
Nashold
Nelson
Riverdahl
Rolling Green
Spring Creek
Thompson
Walker
Washington
Welsh
West View
White SwanWhitehead
ASHRAE Standard 62.1 - 2010 : Logged Data – Hours of
Operation where CO2 levels exceeded 1000 PPM
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IAQ & ENERGY
Ellis CO2 = 14% Lewis Lemon CO2 = 56%
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VISUAL COMFORT ANSI/ASHRAE/IES Standard 90.1 - 2010: Data Logging
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VISUAL COMFORT
0
20
40
60
80
100
120
Bar
bo
ur
Be
yer
Blo
om
Bro
okv
iew
Car
lso
n
Ch
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alle
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We
st V
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Wh
ite
Swan
Wh
iteh
ead
(FC
)
ANSI/ASHRAE/IES Standard 90.1 - 2010: Data Logging
Acceptable Light Levels – Too bright/too dim for optimal Student Performance
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ACOUSTIC COMFORT ANSI S12.60 – Field Measurements
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0
10
20
30
40
50
60
70
80
90So
un
d P
ress
ure
(d
B)
Octave Band, Center Frequency (Hz)
NC-70
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
Barbour
ACOUSTIC COMFORT ANSI S12.60 – Measurements of background noise
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HOLISTIC PERFORMANCE
Overall Ranking • Educational Adequacy • Energy • Indoor Environmental Quality
• IAQ • Thermal Comfort • Visual Comfort • Acoustical Comfort
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HOLISTIC PERFORMANCE
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THINK HOLISTICALLY ABOUT
CAPITAL PROJECTS
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RETRO-CX RESULTS 12% to 15% in Energy Savings for Retro-Commissioned Buildings RPS District hired a dedicated Energy & Operations Planner
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ENERGY CONSUMPTION
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ENERGY CONSUMPTION Sidewalk snow melt
THE CULPRIT:
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ENERGY CONSUMPTION Heat escaping from uninsulated pipe, valves, and fittings
Loose electrical connections
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ENERGY CONSUMPTION
Retrofit to control both baseboard heating and
pneumatic VAV box with one thermostat, stop fighting!
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CAMPUS ENERGY PLAN
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Campus Energy Plan 2015
CAMPUS ENERGY PLAN: 2015
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Campus Energy Plan 2015
CAMPUS ENERGY PLAN: 2016
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NEW BUSINESS BUILDING Designed to ASHRAE 189.1 High Performance Building Standard
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NEW BUSINESS BUILDING Designed to ASHRAE 189.1 High Performance Building Standard
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ARCHITECTURE 2030 GOALS
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REDEFINE NET-ZERO ENERGY
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Campus Energy Plan 2015
CAMPUS ENERGY PLAN: 2016
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Campus Energy Plan 2015
CAMPUS ENERGY PLAN: 2020
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Campus Energy Plan 2015
CAMPUS ENERGY PLAN: 2020
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SUSTAINABLE CURRICULUM
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A Sustainability Gateway to Campus
ENERGY & CAMPUS LIFE
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ENERGY REDUCTION ROADMAP
Reduce: Design of Deep Energy Retrofits
Produce: Final step in Net Zero process
Optimize: Big Savings Opportunity
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GREEN REVOLVING FUNDS
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Speakers:
Contact: Ruairí Barnwell [email protected] Ben Talbot [email protected]
ASHRAE Illinois Spring Conference – Retro-commissioning and Energy Auditing
Ruairí Barnwell Principal
Energy Services Leader
Ben Talbot Associate
Senior Building Analyst