NAES HARTFORD / M.I.R.A.

Retrofit and Reverse Engineering of a Common Breaching Duct in Record Time

THE CHALLENGE:

  • The existing common breaching duct leading into the stack needed to be replaced in a extremely fast timeline.
  • The duct was 260 feet long and weighed over 65 tons.
  • All 3 EfW boilers fed into the duct and replacement required all 3 units to be offline.
  • Plant had no drawings of the duct work that could be used for new fabrication.
HBBW has been working in NAES Hartford for over 25 years.

THE SOLUTION & RESULTS:

  • HBBW reversed engineered new duct sections. All fabrication was done in our 95,000 SF shop in Lawrence, MA and shipped to the site.
  • HBBW Field & Plant Services Groups worked during outage.
  • Utilized HBBW multi-crafted crews under one roof to coordinate scaffolding, removal of old duct work, pre-insulation, installation of new breaching duct work from the baghouse to the stack, and final lagging of insulation.
  • Completed the project in record time of 11 shifts (5.5 days) resulting in big savings to the plant because they were able to get online as quickly as possible.

“HBBW added value to NAES by providing a turn-key solution solving a problem we had with a worn-out breaching duct. They were able to engineer, fabricate, and provide the on-site services to complete the work in record time.”

– Plant Engineer at NAES

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