Transcript 2013 HVAC Systems

ASHRAE Annual Conference
Sustainability Project
Denver Rescue Mission
Energy Efficiency Upgrades
1130 Park Avenue West, Denver, CO 80205
Learn More @
www.ASHRAEDenver2013.org
2013
WHO...
Our local ASHRAE chapter membership
community
WHAT...
In-depth energy assessment, technical
design assistance, and the potential for
high efficiency system installations
2013
WHY...
Since 2008, each host city
ASHRAE chapter has conducted
a sustainability demonstration
project of their choosing
The Project
• 3-story, 23,000 sq.ft.
building built in 1928
• Tens of thousands of
people come to this
facility each year for
shelter, food, and
support
2013
The Facility
• Offices, two chapels,
a library, a kitchen, a
clinic, a dormitory
and other ancillary
spaces
• 3 meals per day,
dorms open each
night
2013
HVAC Systems
• Large boilers and steam
radiators with old valves
• Constant volume make-up air
unit (MAU) for dorms
• Constant exhaust for
showers
• (4) split system AC units
(offices, library, clinic)
• (4) evap cooling units (dorm,
chapel, dining room)
2013
Historical Energy Use
2013
Utility Data
• High EUI and Cost
2013
Utility Data
• Typical profile but high use
2013
Project Goals:
• Help the facility operate more sustainably
with lower energy use and better Indoor
Air Quality - Lower annual energy costs
over 30%
2013
Energy Efficiency Upgrades
2013
1. Lighting Upgrade
2. Replacement of (4) Split Systems
3. Installation of DDC System
4. Steam System Upgrades
5. Replacement of MAU with ERV
6. Replacement of (2) DHW Heaters,
Increased Capacity, Low Flow
Shower Heads
7. Installation of Solar DHW System
ECM: Lighting Upgrade
• Currently 2 and 4-ft T-12
with magnetic ballasts
• Older exterior lights
• Limited occupancy
sensors
• Older Exit Signs
• Project: Upgrade fixtures
and add sensors
2013
ECM: Replace Split Systems
• Replacing (4) units offices, library, clinic
• New units are 21
SEER* @ ARI
Conditions
*SEER = cooling output during a typical
cooling-season divided by the total
electric energy input during the same
period(BTU/W*hr)
2013
ECM: Installation of DDC System
• Tie together HVAC
equipment, zone
thermostats, on/off
enable
• Provide equipment
scheduling,
temperature control,
unoccupied setback,
and remote access
2013
ECM: Steam System Upgrades
• Thermostatic valves and
steam traps in disrepair
• Replace valves and
steam traps
• Address system leaks
2013
ECM: Replacement of Make-Up Air Unit (MAU)
with Energy Recovery Ventilator (ERV)
• Tie restroom exhaust into ERV to capture heat
• Continuous ventilation for better IAQ
2013
ECM: Replacement of (2) DHW Heaters,
Increased Capacity, Low Flow Showers
• Currently only (2) 80 gal tanks
• Adding more capacity and
upgrading to 86% efficiency
2013
Energy Saving Estimates
ECM#
Energy Conservation Measure
1
Retrofit Lighting - Upgrade T12 to T8, occ sensors, exterior lights, exit signs
2
Replace Split System Air Conditioning Units
3
Upgrade HVAC Controls - Central DDC Control
4
Reduce Steam Leakage and Replace Steam Control Valves
5
Replace 3rd Floor MAU with HRV (Dorm/Shower/Restroom)
6
Replace Domestic Hot Water Heaters, Low Flow Shower Heads
7
Install Solar Domestic Hot Water
Estimated
Annual
Electric
Savings
(kWh/yr)
Estimated
Demand
Savings
(kW/peak
month)
45,712
7.1
-328
$
3,857
9,842
4.4
0
$
1,314
14,942
0.0
3,697
$
3,655
0
0.0
957
$
634
0
0.0
4,324
$
2,863
0
0.0
4,704
$
3,114
0
0.0
1,892
$
1,253
Estimated
Estimated
Annual Gas
Annual
Savings
Energy
(therms/yr) Savings ($/yr)
Total Annual Estimated Savings ($/yr):
$16,689
Current Annual Utility Cost ($/yr): $ 51,477.68
% Savings from Current Annual Cost:
32%
2013
Team and
Fundraising
2013
Thank you Project Team!
Technical Team:
Owner Liaison and Program Support – Energy Outreach Colorado
Project Management and Energy Support – Eaton Energy Solutions
Mechanical and Plumbing Design – MKK Consulting Engineers, Inc
Energy Audit – Investive Building Projects (formerly LONG Energy
Solutions)
Pricing and Contractor Liaison – US Engineering
Solar Assessment – Shamrock Sales
Energy Monitoring – ATS
Steam System Assessment – Dick Scott
Structural Assessment – Jirsa Hedrick & Associates
General Contractor – C&D Management
Lighting Assessment – Illumination Systems
Fundraising:
Fundraising Lead – Western Mechanical Solutions
Finance and Sponsor Tracking – Mtech
Publicity and Promotions:
Promotions, Materials – Shaffer Baucom
Website – John Eisel
Promotions, Fundraising – IMS
2013
Thank you Sponsors & Donors!
Platinum
annexAir
C & D Builders, Inc.
Denver Office of Strategic Partnerships
Mtech
XCEL Energy
Silver
Apricus
CAMUS Hydronics Ltd.
Cooper Lighting
Johnson Controls
Lohmiller & Company Carrier West
McKinstry
Patron
Air Purification
American Mechanical Services
CFM Company
Curb Technologies
Davenport Family Gift Fund
Hercules Industries
Ideal Electric, Inc.
Investive Building Projects
RMH Group
Slattery & Company
TRANE Denver
Winslow Crane Services Co.
Gold
Alerton
ASHRAE Rocky Mountain Chapter
ASHRAE Society
ATS Rocky Mountain
Ferguson Enterprises, Inc.
McNevin Co.
US Engineering
Bronze
Digital Communications
Partner
Denver Water
M-E Engineers, Inc.
MKK Consulting Engineers, Inc.
Water Technology Group
Western Mechanical Solutions
Associate
ASHRAE Black Hills Chapter
James Waechter
P.V.C. Specialties Company
Shaffer • Baucom Engineering & Consulting
Supporter
Aaron Zimmerman
Brian Lynch
C&D Insulation, Inc.
BE PART OF THE SOLUTION!
LEARN MORE AND DONATE @
www.ASHRAEDenver2013.org
General Project and Donation Inquiries:
[email protected]
2013