Hawthorn Unit 5

Kansas City Power & Light
Kansas City, Missouri

An explosion during a maintenance outage on February 17, 1999, destroyed the original Hawthorn Unit 5 boiler. In August 1999, B&W was released to design, supply, erect and commission a complete replacement boiler on an accelerated schedule. The new boiler began generating electricity in June 2001, only 22 months from project commencement.
 
Plant Owner
Kansas City Power & Light


Plant Name
Hawthorn Unit 5

Location
Kansas City, Missouri

Owner’s Consulting Engineer
Burns & McDonnell

B&W Scope 
  • Complete boiler island from coal-conveying system to stack, including:
    • structural steel
    • dry FGD
    • fabric filter
    • ash systems
    • electrical, including motor control centers, switchgear, and wiring
    • auxiliary piping systems
    • critical piping to the turbines
    • Construction by Babcock & Wilcox Construction Co., Inc. (BWCC), a B&W subsidiary
    • Architectural services for the boiler island
    • Startup and commissioning services

Pollution control equipment on Hawthorn Unit 5 includes an SCR system for NOx reduction, dry FGD for SO2 control, and a pulse jet fabric filter for particulate control.

The Hawthorn Unit 5 rebuild project achieved commercial operation in only 22 months.

Boiler Specifications

  • Type: Pulverized coal-fired radiant drum boiler (RB Carolina-Type)
  • Design fuel: Low sulfur Powder River Basin coal
  • Capacity: 550 MW net
  • Steam flow: 4,000,000 lb/h (504 kg/s)
  • Superheater outlet pressure: 2600 psig (17.9 MPa)
  • SH/RH outlet temperature: 1005/1005 F (541/541 C)
Environmental Equipment

Other Equipment Supplied by B&W

Contract Order: 1999
 
Commercial Operation2001
 
Project Facts

  • Rebuilt unit’s capacity uprated from 476 MW to 550 MW
  • PJFF was built on the foundation of one of the original electrostatic precipitators (ESP) and adapted the existing hoppers and support steel.
  • Even with a compressed schedule and the constraints of rebuilding within an existing site, the project achieved every major milestone.

Sectional Side and Plan Views of Hawthorn Unit 5

Hover and click on the numbered image shown below to learn more!

Hawthorn Unit 5 Sideview


Air Heater

Boiler

Fabric Filter

SCR

SDA

Stack

To Fabric Filter

New Build

We consistently demonstrate the ability to successfully execute innovative solutions for our customers, from new equipment to large, complex full-scope engineering and construction projects.

Upgrades / Retrofits

Modifying, improving and maintaining existing equipment are vital considerations for the long-term viability and profitability of all operations.

Parts / Services

An extensive network of worldwide regional service centers, field service engineers and technical support personnel are available to provide the customized service and aftermarket solutions for your requirements.