New Biomass Plant for Alabama Department of Corrections (ADOC) Facility
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New Biomass Plant for Alabama Department of Corrections (ADOC) Facility

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McKenney’s, Inc. was responsible for the entire project from design to demolition to com­missioning, and managed a host of con­tractors—including painters, electricians, landscapers and ...

McKenney’s, Inc. was responsible for the entire project from design to demolition to com­missioning, and managed a host of con­tractors—including painters, electricians, landscapers and more—for several auxiliary tasks. McKenney’s designed the mechanical systems in-house.

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New Biomass Plant for Alabama Department of Corrections (ADOC) Facility Presentation Transcript

  • 1. When a fire destroyed the boiler plant at the Bullock CountyCorrectional Facility, Alabama Department of Corrections (ADOC)officials were alarmed. Hot water, steam and heat are necessities. Noresco, an energy services contractor, chose McKenney’s as the turnkey prime subcontractor assigned to rebuild the boiler plant.
  • 2. McKenney’s was responsible for theentire project from design todemolition to commissioning, andmanaged a host of contractors—including painters, electricians,landscapers and more—for severalauxiliary tasks. McKenney’s designedthe mechanical systems in-house.
  • 3. The new boiler plant included a 150 HP biomass-fueled boiler and 300HP Scotch marine boiler to help match the amount of hot water andsteam produced by three boilers prior to the fire.
  • 4. The team designed a sophisticatedmaterial handling system to store,transport and meter wood chipsto the biomass boiler. To ensure equipment and piping was installed safely and efficiently, the team modeled the entire building structure and mechanical systems in 3D.
  • 5. One of the largest challenges was to ensure that the facility neverlost hot water and steam.McKenney’s installed, operated and maintained two temporaryboilers, pumps, hot water generators and piping in such a way thatturnover was seamless between the temporary and new system.
  • 6. Since the biomass boiler system was designedand built specifically for this facility,McKenney’s was tasked with providingoperational capability after startup. As part ofthe commissioning process, for 15 days theMcKenney’s team operated the biomassboiler systems around-the-clock—loggingdata, tracking fuel and monitoring the amountof steam released.
  • 7. The first test run proved all systems were working properly but not attaining the expected efficiencies.McKenney’s worked with the boiler manufacturers, controls teamand in-house engineers to make improvements based on the datacollected.After implementing changes to the exhaust flue and induced draftfan the second 15-day performance test passed.
  • 8. The team also installed a 300 HP naturalgas boiler, hot water generators, heatexchangers and pumps. McKenney’sdesigned and installed the controls to ensureevery piece of equipment was integratedseamlessly for more efficient management.Even though the boiler plant is located outsidethe prison walls, there is more than 1,700 feetof underground steam and condensate pipingthat leads from the boiler plant to the facility.As part of the project, McKenney’s replaced allthe piping with no service interruptions.
  • 9. Despite the unique challenges theproject was completed on scheduleand with zero injuries.The facility received a custom-builtboiler plant that has been proven tooperate efficiently and safely.
  • 10. Project Team Engineer: McKenney’s, Inc. Architects: McKenney’s, Inc. Owner: Alabama Department of CorrectionsThe Challenge Provide a turnkey design-build renovation project Demolish mechanical systems after fire Design, build and install new biomass boiler system Replace underground pipingThe Solution Biomass boiler using renewable resources Precision 3D modeling and fabrication Integrated, automated controls Temporary measures to keep facility online
  • 11. The Results Project completed on time, on budget Zero accidents or injuries
  • 12. Atlanta Office: 1056 Moreland Industrial Boulevard Atlanta, Georgia 30316 P: 404-622-5000Charlotte Office: 3601 Performance Road Charlotte, North Carolina 28214 P: 704-357-1200 sales@mckenneys.com www.mckenneys.com