ASHRAE Illinois Spring Conference Retro-commissioning and … · 2015-03-12 · ASHRAE Illinois...

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

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

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

THAT WAS THEN

THIS IS NOW

21st CENTURY LEARNING ENVIRONMENTS

CHANGING WORKPLACE NEEDS

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

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

Think Differently

Think Holistically

45 SCHOOLS Build New vs. Renovate?

Validate Capital Plan

$111 Million 21st Century Learning Environments (Capital Plan) $139 Million deferred maintenance

BUILDING PERFORMANCE MASTERPLAN

ENERGY CONSUMPTION Benchmark existing facilities

• Understand

• Energy use

• Energy cost

• Energy demand

ENERGY ANALYSIS TOOLS

ENERGY CONSUMPTION

RPS 205 BENCHMARKING

RPS 205 BENCHMARKING

RPS 205 ENERGY PLAN

ENERGY CONSUMPTION

Ellis EUI = 105 kBtu/SF Lewis Lemon = 75 kBtu/SF

• Occupant Thermal Environment Survey

• Data Logging – Temp/RH/Light/CO2

• Field Measurements – Light/Acoustics

DATA COLLECTION PROCESS

Data Logging Workbook for O&M Staff and Science Students

DATA COLLECTION PROCESS

THERMAL COMFORT • ASHRAE 55 : Occupant Thermal Environment Survey

-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

klin

Den

nis

Elli

s

Fro

berg

Gre

gory

Has

kell

Hill

man

John

son

Ken

nedy

Kin

g

Kis

hwau

kee

Lath

rop

Lew

is L

emon

Mar

sh

Mci

ntos

h

Mon

tess

ori

Nas

hold

Nel

son

Riv

erda

hl

Rol

ling

Gre

en

Spr

ing

Cre

ek

Tho

mps

on

Wal

ker

Was

hing

ton

Wel

sh

Wes

t Vie

w

Whi

te S

wan

Whi

tehe

ad

Mean Vote – Elementary Schools

• ASHRAE 55 : Occupant Thermal Environment Survey

THERMAL COMFORT

DATA COLLECTION PROCESS

Ellis PPD = 10% Lewis Lemon PPD = 20%

THERMAL COMFORT & ENERGY

INDOOR AIR QUALITY ASHRAE Standard 62.1 - 2010 : Logged Data

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

IAQ & ENERGY

Ellis CO2 = 14% Lewis Lemon CO2 = 56%

VISUAL COMFORT ANSI/ASHRAE/IES Standard 90.1 - 2010: Data Logging

VISUAL COMFORT

0

20

40

60

80

100

120

Bar

bo

ur

Be

yer

Blo

om

Bro

okv

iew

Car

lso

n

Ch

err

y V

alle

y

Co

nkl

in

De

nn

is

Ellis

Fro

be

rg

Gre

gory

Has

kell

Hill

man

Joh

nso

n

Ke

nn

ed

y

Kin

g

Kis

hw

auke

e

Lath

rop

Lew

is L

emo

n

Mar

sh

Mci

nto

sh

Mo

nte

sso

ri

Nas

ho

ld

Nel

son

Riv

erd

ahl

Ro

llin

g G

reen

Spri

ng

Cre

ek

Tho

mp

son

Wal

ker

Was

hin

gto

n

We

lsh

We

st V

iew

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

ACOUSTIC COMFORT ANSI S12.60 – Field Measurements

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

HOLISTIC PERFORMANCE

Overall Ranking • Educational Adequacy • Energy • Indoor Environmental Quality

• IAQ • Thermal Comfort • Visual Comfort • Acoustical Comfort

HOLISTIC PERFORMANCE

THINK HOLISTICALLY ABOUT

CAPITAL PROJECTS

RETRO-CX RESULTS 12% to 15% in Energy Savings for Retro-Commissioned Buildings RPS District hired a dedicated Energy & Operations Planner

ENERGY CONSUMPTION

ENERGY CONSUMPTION Sidewalk snow melt

THE CULPRIT:

ENERGY CONSUMPTION Heat escaping from uninsulated pipe, valves, and fittings

Loose electrical connections

ENERGY CONSUMPTION

Retrofit to control both baseboard heating and

pneumatic VAV box with one thermostat, stop fighting!

CAMPUS ENERGY PLAN

Campus Energy Plan 2015

CAMPUS ENERGY PLAN: 2015

Campus Energy Plan 2015

CAMPUS ENERGY PLAN: 2016

NEW BUSINESS BUILDING Designed to ASHRAE 189.1 High Performance Building Standard

NEW BUSINESS BUILDING Designed to ASHRAE 189.1 High Performance Building Standard

ARCHITECTURE 2030 GOALS

REDEFINE NET-ZERO ENERGY

Campus Energy Plan 2015

CAMPUS ENERGY PLAN: 2016

Campus Energy Plan 2015

CAMPUS ENERGY PLAN: 2020

Campus Energy Plan 2015

CAMPUS ENERGY PLAN: 2020

SUSTAINABLE CURRICULUM

A Sustainability Gateway to Campus

ENERGY & CAMPUS LIFE

ENERGY REDUCTION ROADMAP

Reduce: Design of Deep Energy Retrofits

Produce: Final step in Net Zero process

Optimize: Big Savings Opportunity

GREEN REVOLVING FUNDS

Speakers:

Contact: Ruairí Barnwell rbarnwell@dlrgroup.com Ben Talbot btalbot@dlrgroup.com

ASHRAE Illinois Spring Conference – Retro-commissioning and Energy Auditing

Ruairí Barnwell Principal

Energy Services Leader

Ben Talbot Associate

Senior Building Analyst