ASHRAE Journal - April 2020 - 44

2020

ASHRAE TECHNOLOGY AWARD CASE STUDIES

TABLE 1 Energy savings, baseline vs. 2018 (fully occupied).

kWh

$

Baseline
Consumption $355,081 3,980,725 $415,817
Actual
Savings, 2018 $27,094
(fully occupied) (7.63%)

MMBTu

$

23,933 $546,700

291,960 $148,459
8,213 $276,226
(7.33%) (35.70%) (34.32%) (50.53%)

Water

Klbs

$

28,220 $142,697

Sewer

Kgal

$

Kgal

Total Annual
Utility
Cost
(Or Savings)

38,013 $117,198

38,013

$1,577,493

13,107 $68,181
16,664 $54,400
(46.45%) (47.78%) (43.84%) (46.42%)

16,664
(43.42%)

$574,350
(36.41%)

TABLE 2 Energy savings (Btu), baseline vs. 2018 (fully occupied).
fans were replaced with three
Chilled
high-plume fans with dedicated
Electricity
Steam
Total MMBtu
Year
Water
(MMBtu)
(MMBtu)
(Or Savings)
outside air systems and heat-pipe
(MMBtu)
heat recovery. As shown in Table
Baseline
13,586
23,933
33,864
71,383
Consumption
1, by 2018, the new systems were
Actual
saving $574,350 a year, a reduc996
8,213
15,728
24,938
Savings, 2018
(7.33%)
(34.32%)
(46.45%)
(34.94%)
tion in utility costs of 36.41%.
(fully occupied)
(Even more recent data, from
TABLE 3 Energy savings (EUI), baseline vs. 2018 (fully
2019, indicated an annual savings of $723,999, or
We also
45.9%, versus the baseline.)
acknowledge the occupied).
Year
EUI KBtu/ft2/yr
efforts of our colEnvironmental Impact
laborating firms
Baseline
580
Environmental impact will result from energy
and their teams,
2018
378
and water savings. The actual annual savings (Table
including:
(Fully Occupied)
1), as measured in 2018, was 291,960 kWh of elec* University
tricity (7.3% reduction); 8213 MMBtu (8.7 billion
of Illinois at Urbana-Champaign (Josh Whitson, Kent
kJ) of chilled water (34.32% reduction); 13,107 klb
Reifsteck, David Green, John Prince, Thad Bales, Craig
(16 570 887.9 MJ) of steam (46% reduction); and
Grant, Daren Evans, Sonja Koric, and Joseph Youakim)
16,664 kgal (63.8 kL) of water/sewer (43% reduction).
* Materials Research Laboratory (Kristopher WilA Btu savings calculation appears in Table 2.
liams, Doug Jeffers, James Mabon, Jerry Cook, and Joe
Newly available data for 2019 indicated 3.91%
Kunkle)
of electricity savings versus the baseline; 29.16%
* ESG, energy performance contractor (Mario Zotta,
chilled-water savings; 52.71% of steam savings; and
Jim Cantrell, Bill Bermingham, Amber Vega, David
87.35% of water/sewer savings.
Brewer, Kitty Knauz, and Sylvia McIvor)
The lab building site energy use intensity (EUI,
* Bailey Edward, architect (Karla Smalley)
Table 3) was reduced from 580 kBtu/ft2/yr (6587 MJ/
* RME (Rubinos & Mesia Engineers), structural engim2/yr) to 378 kBtu/ft2/yr (4293 MJ/m2/yr), which
neer (Rob Zofkie and Sean Kwon)
equated to a 35% reduction in site energy.
* Primera Engineers, electrical engineer (Kris Kotowski
and Craig Anderson)
Acknowledgments
* Davis-Houk, Inc., mechanical contractor (Jeff Stewart
The authors are grateful to the University and
and Chris Rennels)
especially recognize the work of Josh Whitson,
* Davis Electric, electrical contractor
Energy Performance Contracting Management.
(Roger
Henning)
In addition to the author, Grumman/Butkus
* Siemens, controls (Steve Carithers,
Associates, teammates Chad Luning, David Nelson,
Russ Patrick, and Duane White)
Eric Huber, Joel Freeman, Jeff Cochran, and
William Wylie made significant contributions to
* Carnow, Conibear & Assoc., Ltd.,
https://bit.ly/2T2iToK
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the project.
environmental services (Todd Huffer).
44

ASHRAE JOURNAL

ashrae.org

APRI L 2020

TABLE COURTESY G/ BA

$

Steam

TABLE COURTESY G/ BA

Chilled
Water

Electricity

TABLE COURTESY G/ BA

Year


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ASHRAE Journal - April 2020

Table of Contents for the Digital Edition of ASHRAE Journal - April 2020

Contents
ASHRAE Journal - April 2020 - Intro
ASHRAE Journal - April 2020 - Cover1
ASHRAE Journal - April 2020 - Cover2
ASHRAE Journal - April 2020 - 1
ASHRAE Journal - April 2020 - Contents
ASHRAE Journal - April 2020 - 3
ASHRAE Journal - April 2020 - 4
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