University Of Vermont Central Plant Control Systems Upgrade - PowerPoint PPT Presentation

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University Of Vermont Central Plant Control Systems Upgrade

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University Of Vermont Central Plant Control Systems Upgrade Sal Chiarelli Director of Physical Plant Michael Wells Central Plant Supervisor Ray Racine – PowerPoint PPT presentation

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Title: University Of Vermont Central Plant Control Systems Upgrade


1
University Of VermontCentral Plant Control
Systems Upgrade
  • Sal Chiarelli
  • Director of Physical Plant
  • Michael Wells
  • Central Plant Supervisor
  • Ray Racine
  • Senior Controls Engineer  Hallam-ICS

2
Utilities Master Plan Main Schemes
  • Document existing conditions
  • Develop central chilled water plant
  • Upgrade steam distribution system
  • Minimize single point failure points
  • Eliminate choke points on the distribution system
  • Retire old inefficient equipment
  • Upgrade Building Control Systems
  • Co-generation possibilities
  • Central chilled water plant
  • Capacities/limitations
  • Utility Corridors/ Plan the campus
  • Reduce demand (all utilities)
  • Spend now to save later/reduce excavation
  • Upgrade Central Plant Control Systems

3
Westinghouse to DeltaV
  • From the old to the New
  • From Charts that required Nightly changing
  • Felt tip pens
  • Ink cartridges

4
The Amazing Conversion
  • New Air Conditioning
  • Upgraded Electrical Distribution
  • New High Efficiency Lighting
  • New Computer Terminals
  • New Office Furniture
  • Air Filtration System
  • Increased Square Footage of Room
  • Installed State-of-the-Art Delta-V Operating
    System

5
The Beginning of New
  • The installation of the new Delta-V Controllers
  • New Air Conditioning to maintain constant
    temperature to assure life expectancy and
    computer function

6
Each New Components Benefits
  • New Air Conditioning
  • Allows for higher quality air supply
  • Computers have a safe environment
  • Computers operate optimally
  • Employees have a comfortable safer work
    environment which increases moral and
    productivity

7
Each New Components Benefits
  • Upgraded Electrical Distribution
  • Allowed for more efficient VFDs to be installed
    thus decreasing electrical demands
  • Decreased the possibility of single point
    failures
  • Made maintenance of the system more user friendly
  • Centralized three panels
  • Afforded the opportunity for further expansion

8
Each New Components Benefits
  • Computerization of Control System
  • Allowed for more efficient Reading to be Compiled
  • Decreased the possibility of single point
    failures
  • Made maintenance of the system more user friendly
  • Centralized Control of the five Boilers
  • Afforded the opportunity for further expansion

9
Each New Components Benefits
  • Computerization of Control System
  • Allowing for custom Alarming on the new computer
    System
  • A better view of Plant Systems

10
Making way for the New
  • First Panels To be removed were s 1 2
  • Boiler Controls that were installed in 1970

34
12
11
The Old BMS Control Panels
  • Not only the Pneumatics were being removed but
    the old Burner Management System was going to be
    Computerized

12
All of This Turned Into..
13
THIS!!!!!!!!!!
14
Halfway There
15
Delta-V The Life Line of Campus
16
Delta-V Hallam-ICS
  • UVM selected the technicians of Hallam-ICS to
  • Install Calibrate Instruments
  • Work with Programmer to start-up boilers
  • Initial Controls Vendor Programmer did not have
    DeltaV experience
  • Code was not clean or consistent
  • Start-up went poorly
  • Operation of Boilers unreliable
  • Trips not recorded
  • UVM did not trust DeltaV system

17
UVM forges a partnership
  • Technicians told Mike about their programmer with
    boiler experience
  • UVM contracted programmer for some simple fixes,
    which were successful built trust
  • Programmer had boiler experience on several
    platforms, but had never touched DeltaV
  • Hallam-ICS had already committed to learning this
    system now a real world chance
  • UVM agreed to let programmer learn on-line for 1
    week (Hallam-ICS expense)
  • Programmer attended custom 2-day training by
    Emerson (Hallam-ICS expense)

18
DeltaV Gets a Facelift
  • UVM contracts Hallam-ICS to convert Boiler 1
  • New System New Rules
  • Work with Operators to set color standards
  • Work with burner vendor to customize (from
    scratch) BMS code to these burners - NFPA is only
    part of BMS
  • Rewrite (from scratch) Combustion Controls to
    give reliable and efficient cross-limiting
    (understand burner efficiency Stoichiometry)
  • Design Graphics for easy understanding and simple
    command entry
  • Start / Stop Auto / Manual Setpoints
  • Accurate First Out reporting
  • Sensible Alarm strategies (color, sound,
    flashing)
  • Custom Reports from Historical Trends Events

19
Simple Graphics
20
Simple Graphics
21
Simple Graphics
22
Simple Graphics
23
Meaningful Help Always Available
24
Meaningful Help Always Available
25
DeltaV Redeemed
  • Boiler 1 Started-Up on New Controls
  • One Day Start-Up for Combustion BMS
  • Next 3 Boilers in 2 days Boiler 5 / 2 days
  • Boiler House Trusted the System
  • Operators liked new interfaces
  • Adopted Pop-Up for Controls Philosophy
  • Screen Colors match piping colors in field
  • Alarm and Warning set at sensible levels
  • BMS Christmas Tree provides troubleshooting for
    light-off issues
  • Standard Screen Navigation for all displays
  • Overviews for system status

26
Conversions are Never Finished
  • Winter Loads show gradual changes
  • Summer was not as forgiving
  • Two Steam Absorption Chillers came on-line
  • Wanted 20 KPPH Steam Right Now!!
  • Plant Master could not respond without
    occasionally dumping a boiler
  • Three days of work to re-tune Plant Master
  • Re-Test for winter loads in December

27
Just one More Thing
  • Then came the Central Cooling Plant
  • Two Steam Driven Chillers
  • Four Towers and Fans
  • Pumps Drives
  • Comm. Interface to Chillers (Modbus Serial)
  • Provide summer Load to Boiler House
  • Used existing Control Philosophy
  • Upgrade successfully integrated into DeltaV

28
More Equipment
29
Running Systems
30
UVM Central Utilities Success Formula
  • Consider current and Future Needs
  • Develop Standards and stick with them
  • Develop Equipment Vendor Relationships and
    Technical Support Relationships
  • Keep it Simple
  • Meet code requirements
  • Make it as efficient as possible
  • Dont make it any more complicated than
    absolutely necessary
  • Train your whole Team to run the system
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