Duke Energy - Marshall

Scope of work: 

Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction management, a 1/12 scale physical model study, electrical wiring, foundation, field construction, insulation and cladding, painting and start-up services for the utility's Unit #3 & Unit #4 Electrostatic Precipitator Project Replacement. 

The new precipitator is upstream of a new FGD. The unique construction approach allowed for the addition of a future SCR to be located upstream of the ESP and reduced projected outage time by 50%.

Application:

• 2 - 700 MW Coal Fired Power Boiler Unit #3 & #4

Project Duration: 

• PO Received: October 2004

• Mobilize: April 2005

• Demobilize: May 2007

• 12 week outage

Detailed Engineering in the following disciplines:

• Civil Engineering

• Structural Engineering

• Mechanical Engineering

• Electrical Engineering

• 1/12th Scale Physical Model Study

Fabrication and Construction Services:

• Caisson Installation

• Structural Steel Fabrication and Erection

• ESP Fabrication and Erection

• Electrical Construction

• Ductwork Fabrication and Erection

• Project Management

• Site Management

• Insulation and Lagging

• Painting

• Lead Abatement

Performance Guarantee:

SEI provided a broad range of guarantees for twenty-five coals. Outlet Emissions: Ranging between 0.04 #/mmBtu and 0.05 #/mmBtu Opacities: Ranging between 12% Opacity and 10% Opacity Inlet Gas Flow: 2,512,000 ACFM at 320 F