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David C. Blatchly, EI Project Engineer The University of Vermont - UVM. A Decade of Moooov’n Utilities Forward at UVM. Executive Summary. - PowerPoint PPT Presentation
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A Decade of Moooov’n Utilities Forward at UVM
David C. Blatchly, EIProject EngineerThe University of Vermont - UVM
Executive SummaryExecutive Summary
Over the past decade the University of Vermont (UVM) has taken campus utility systems from the master planning stages to full implementation. A true Utilities Master Plan, the following slides will showcase the strategic projects dealing with underground steam line distribution renewal and expansion, the University’s central chilled water plant construction, tactical planning utilizing existing auxiliary boilers and chillers for system back up, system maintenance, optimization and control. The UVM Physical Plant Department has partnered with outside consultants, contractors and our own in-house institutional knowledge to create campus district energy systems that are not only coordinated with the University of Vermont’s overall Campus Master Plan, but are also capable of serving the University far into the future.
Background Utility Mapping Master Planning Issues Implementation
Infrastructure Renewal/Expansion Projects Central Plant Projects
Costs Results
Overview
Background Central Heating & Cooling Plant (CHCP)
•5 Boilers – serving 3.7 Million sqft Dual-fuel (#6 fuel oil and natural gas) Maximum steam capacity is 224,500 lbs/hr Steam is generated at 220 psi and 398 F
•2 Chillers (steam driven) – serving 1.2 Million sqft Maximum cooling capacity is 2730 tons Variable/Primary (maximum pressure -100 psi) and 42F
•8.8 miles of underground distribution piping
•40 Steam & chilled water manholes
•1.1 MW Emergency Generator
•Satellite/Back-up - 12 Boilers
•12,836 Steam traps
•150,000 gallons of #6 oil are stored at the Plant.
•26 Chillers; 69 Boilers support facilities not served by the CHCP
Existing Utility MappingWhy is this important to UVM?
• Ensure Reliability• Safety• Cost effectiveness• Growth• Dedicated utility corridors• Environmental impact• Maintainability• Serviceability
4/7/04 6
Master Planning Utilities5 year Steam & Chilled Water Master Plan
What Are Some Of Today’s IssuesWhat is the planning and strategy supporting?
• Growth on campus• Energy costs• Systems are outdated and obsolete• Air conditioning is an expectation• Utilities are critical for Research• System reliability• Emissions/Air Quality/Permitting
Implementation Projects
I.Underground Infrastructure Replacement (’03 – ‘08)II.Chiller Plant (’06 – ‘07) III.Given Boiler & HSRF Chiller Plant Loop (’08 – ‘10)IV.North Campus Upgrades (‘10 – ‘11)
GENERAL CONDITION OF 1980 VINTAGE PIPINGGENERAL CONDITION OF 1980 VINTAGE PIPING
• CONDUIT/CASING FAILURE• DEGRADING VAULTS
• CONDUIT/CASING FAILURE• DEGRADING VAULTS
• Concrete Trench Box • Field Fabricated System
SIMPSON TO GUTTERSON - 2003SIMPSON TO GUTTERSON - 2003
• Prefabricated System• Pre-Insulated System
MAIN STREET TO UNIVERSITY HEIGHTS – 2004/2005MAIN STREET TO UNIVERSITY HEIGHTS – 2004/2005
DAVIS CENTER TO MAIN ST. - 2005• Prefabricated System• Pre-Insulated System
• Prefabricated System• Pre-Insulated System
CHP TO BAILEY/HOWE & MARSH LIFE – 2006/2007CHP TO BAILEY/HOWE & MARSH LIFE – 2006/2007
• Facilities Served Initially (07)Facilities Served Initially (07)– Davis Center– Bailey/Howe– Old Mill/Lafayette– Royal Tyler Theatre
• Underground PipingUnderground Piping– 4100 FT of Chilled Water
Supply & Return Piping– 1700 FT of High pressure
Steam and Condensate Piping.
• Plant EquipmentPlant Equipment– (2) 1365 Ton Steam Driven
Turbine Chillers– (3) 200 HP CHW Pumps– (3) 200 HP Tower Pumps– (4) 40 HP Tower Fans
CENTRAL CHILLER PLANT– 2006/2007
FIRST TWO OF THEIR KIND IN VERMONTSTEAM DRIVEN TURBINE/CENTRIFUGAL CHILLER
CHW PLANT – FALL SHUTDOWN UNDERGROUND DISTRIBUTION TIE-IN
CHILLER DELIVERY
VARIBLE SPEED; PRIMARY PUMPS
CHW PLANT – TOWER ENCLOSURE & SUMP
CHW PLANT – STEAM BLOW
TOWER ENCLOSURE AND SITE IMPROVEMENTS
CHW PLANT CONTROL STATION
GIVEN BOILER REHABILITATION – 2008• Remote site/virtual 6th boiler• (2) steam boilers 40,000 lb/hr• Provide both load shed and redundancy for
medical school
CHILLED WATER LOOP (HSRF):• More efficient chilled water
generation/distribution• Reduction in HSRF Electric usage• Existing Chillers will provide both load shed
and redundancy for medical school
JEFFORDS/HSRF LOOP – 2008/2009JEFFORDS/HSRF LOOP – 2008/2009
NORTH CAMPUS STEAM & CHW DISTRIBUTION
Phase I - 2010• Prefabricated System• Pre-Insulated System
NORTH CAMPUS STEAM & CHW DISTRIBUTION Phase II - 2011
• Prefabricated System• Pre-Insulated System
Plant Equipment & Infrastructure
Project Costs: 2003-2010Simpson to Gutterson (Phase III) $ 1,800,000.00
MH N1 (103) to Harris w/ feeds to U-Heights $ 3,100,000.00
MH N6 to MH N3 (thru Davis Center Site) $ 3,200,000.00
MH N3 to MH N1 $ 1,587,900.00
Austin to Millis $ 325,000.00
Chiller Plant & Infrastructure: to BH, RTT & Old Mill/Lafayette $ 11,850,000.00
Chilled Water Infrastructure: Davis Site & Connection to Davis: $ 1,750,000.00
Votey to Perkins $ 400,000.00
Jeffords Steam & CHW; Loop to HSRF $ 3,800,000.00
N. Campus Steam and Chilled (Phase I) $ 2,200,000.00
Given Boiler $ 1,650,000.00
PFG Boiler $ 698,000.00
Total $ 32M
Since 2003….Since 2003….
• Over 500,000 sqft of new space the central plant’s peak output has decreased
more than 10% (20,000 PPH).
• Over $32 million invested in the CHP Equipment and Campus Infrastructure
• 5.3 Miles of Underground Infrastructure installed (Replaced & New)
• 5 electrical chiller retired; 2 Steam Absorption Chillers retired (MLS)
• Installed Chillers producing water at 8.5 PPT vs. HSRF @ 20 PPT
• Maintained Boilers at 83% combustion efficiency; 90% of condensate recovery
• Rehabilitated Boiler Capacity of 40,000 PPH @ Medplex
• 2000 Tons of cooling reserve at Medplex
Results
Contact InformationContact Information
David C. Blatchly, EIProject EngineerThe University of Vermont284 East AvenueBurlington, Vermont [email protected]/~uvmppd/