ASHRAE Annual Conference Sustainability Project

Denver Rescue Mission Energy Efficiency Upgrades1130 Park Avenue West, Denver, CO 80205

2013

Learn More @ www.ASHRAEDenver2013.org

WHO...

2013

In-depth energy assessment, technical design assistance, and the potential for high efficiency system installations

WHAT...

Our local ASHRAE chapter membership community

Since 2008, each host city ASHRAE chapter has conducted a sustainability demonstration project of their choosing

WHY...

2013

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)

Historical Energy Use

2013

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%

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

2013

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

Estimated Annual Electric Savings

(kWh/yr)

Estimated Demand Savings

(kW/peak month)

Estimated Annual Gas

Savings (therms/yr)

Estimated Annual Energy

Savings ($/yr)

1 Retrofit Lighting - Upgrade T12 to T8, occ sensors, exterior lights, exit signs45,712 7.1 -328 3,857$

2 Replace Split System Air Conditioning Units9,842 4.4 0 1,314$

3 Upgrade HVAC Controls - Central DDC Control14,942 0.0 3,697 3,655$

4 Reduce Steam Leakage and Replace Steam Control Valves0 0.0 957 634$

5 Replace 3rd Floor MAU with HRV (Dorm/Shower/Restroom)0 0.0 4,324 2,863$

6 Replace Domestic Hot Water Heaters, Low Flow Shower Heads0 0.0 4,704 3,114$

7 Install Solar Domestic Hot Water 0 0.0 1,892 1,253$

Total Annual Estimated Savings ($/yr): $16,689Current Annual Utility Cost ($/yr): 51,477.68$

% Savings from Current Annual Cost: 32%

Team and Fundraising

2013

2013

Thank you Project Team!Technical Team: Owner Liaison and Program Support – Energy Outreach ColoradoProject Management and Energy Support – Eaton Energy SolutionsMechanical and Plumbing Design – MKK Consulting Engineers, Inc Energy Audit – Investive Building Projects (formerly LONG Energy Solutions) Pricing and Contractor Liaison – US EngineeringSolar Assessment – Shamrock Sales Energy Monitoring – ATS Steam System Assessment – Dick Scott Structural Assessment – Jirsa Hedrick & Associates General Contractor – C&D ManagementLighting 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!PlatinumannexAirC & D Builders, Inc.Denver Office of Strategic PartnershipsMtechXCEL EnergySilverApricusCAMUS Hydronics Ltd.Cooper LightingJohnson ControlsLohmiller & Company Carrier WestMcKinstryPatron Air PurificationAmerican Mechanical ServicesCFM CompanyCurb TechnologiesDavenport Family Gift FundHercules IndustriesIdeal Electric, Inc.Investive Building ProjectsRMH GroupSlattery & CompanyTRANE DenverWinslow Crane Services Co.

GoldAlertonASHRAE Rocky Mountain ChapterASHRAE SocietyATS Rocky MountainFerguson Enterprises, Inc.McNevin Co.US EngineeringBronzeDigital CommunicationsPartnerDenver WaterM-E Engineers, Inc.MKK Consulting Engineers, Inc.Water Technology GroupWestern Mechanical SolutionsAssociateASHRAE Black Hills ChapterJames WaechterP.V.C. Specialties CompanyShaffer • Baucom Engineering & ConsultingSupporterAaron ZimmermanBrian LynchC&D Insulation, Inc.

2013

BE PART OF THE SOLUTION!LEARN MORE AND DONATE @ www.ASHRAEDenver2013.org

General Project and Donation Inquiries: sustainable@rockymtnashrae.com