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Power Technology
E.ON UK plc, Ratcliffe on Soar, Nottinghamshire, NG11 0EE T +44 (0) 115 936 2000 F +44 (0) 115 936 2711
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PT/03/BD1076/R Revision 2
Job No: DXZZ D010
August 2004
DTI P140:
ADVANCED OPTIMISATION OF COAL-FIRED POWER PLANT
OPERATIONS-
FINAL PROJECT REPORT
prepared for
MR J FELTON, MOTT MACDONALD LTD, BRIGHTON
by
D M Turner & I Mayes
SUMMARY
In recent years the efforts to reduce nitrogen oxide (NOx) emissions from power stations have
resulted in operational modifications including the fitting of low – NOx burners. These
modifications are expensive and generally have an adverse effect upon plant performance,
resulting in an increase in unburnt carbon. To reduce these adverse effects, on-line optimisers
have been developed as an enhancement to the power station’s digital control system (DCS).
The success of the boiler optimisation models has suggested that on-line optimisation can be
used in other parts of the power station, eg thermal efficiency, electrostatic precipitator (ESP).
Although each local optimiser is able to perform its task well individually there will be occasions
when the individual packages will provide conflicting advice.
The purpose of this unit optimisation project is to develop an integrated approach to unit
optimisation and develop an overall optimiser that is able to resolve any conflicts between the
individual optimisers. A substantial demonstration project has been conducted at Southern
Company’s Plant Hammond over recent years.
Financial support for the project has been provided by the UK DTI, US DOE and EPRI together
with some participant companies. Considerable effort has been put into the project by staff in
E.ON UK, URS Corporation, Energy Technologies Enterprises Corporation, Tennessee
Technological University, SCS Engineering and Syngenco engineering
Unit optimisers provided by E.ON UK and Synengco have been considered during this project
together with the following individual optimisers:
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