Plant Scherer - SCR - Sanria - Revolutionizing Engineering

Project Description

The Robert W. Scherer Power Plant (also known as Plant Scherer) is a coal-fired power plant located just north of Macon, Juliett Georgia in United States. The plant has four generating units, each capable of producing 930 megawatts, and is the most powerful coal-fired plant in North America. The plant is named after the former chairman and chief executive officer of Georgia Power. There was a need to reduce sulphur emissions which was affecting the environment and they came up with adding Selective Catalytic Reducer(SCR) equipment. Based on the large capacity of this power plant, the support structure weighing 40,000 tons to have the SCR equipments. The structural design was done by Worley parsons Engineers for Southern Company Generation LLC. In 2011 Southern Company awarded KBR the General Contract for the installation of Plant Scherer's environmental compliance equipment, which included installation of flue-gas desulfurization and selective catalytic reduction equipment, related ductwork, and auxiliaries at two coal-fired units.

Challenges

Due to space limitations, SCR structures are positioned between conveyors, resulting in narrow and leveled lower structures to support hoppers at the upperlevels.
Designing connections for easy erection of the lower structure is a major challenge. This requires large base plates, substantial gusset plates, and over 200 bolts for each connection element.
In some cases, we've used loose base plates and gusset plates with access holes to accommodate connection element bolts.
With the new SCR structure surrounded by the existing structure and large connections, ensuring accessibility for cranes and field verification was critical.
We had built up sections/Plate Girders, large chevron gussets of height 15'-0 or more.
We had Wide flange sections for all bracing frames resulting in double gussets on the flanges with huge number of bolt rows on either sides.

Upgrades

Our connection design team having qualified engineering professionals working round the clock in line with multiple detailing teams under one roof managed by our own professional engineers and fabrication experts built a strong rappo with customer team thereby syncing with the approvers and fabrication team to deliver such a huge steel tonnage.
We customised our process and methods to be tailor made suitable for the engineering team on customer side to have a smooth review process and control design changes time to time.
We also considered market material sizes, the handling of steel structure fabrication, transportation logistics, crane positioning, and erection feasibility.
More than 60 detailers, engineers worked in this project round the clock for 14 months to complete this project.

This project provided an excellent opportunity to demonstrate our team's expertise and commitment to building such a huge structure with effective coordination among multiple Stockholders. By delivering high-quality service on schedule, we received positive feedback from the client, which motivated us to take on future challenges with even greater determination.

Plant Scherer - SCR

• Building Type

• Location

• Service

• Tonnage

Project Description

Challenges

Upgrades