Page 401
Previous/Next Page
Technology in Australia 1788-1988Australian Academy of Technological Sciences and Engineering
Table of Contents

Chapter 6

I Construction During The Settlement Years

II The Use Of Timber As A Structural Material

III Structural Steel

IV Concrete Technology

V Housing

VI Industrialised Pre-cast Concrete Housing

VII Ports And Harbours

VIII Roads

IX Heavy Foundations

X Bridges

XI Sewerage

XII Water Engineering

XIII Railways

XIV Major Buildings

XV Airports

XVI Thermal Power Stations
i Steam Power Stations Using Brown Coal
ii Fabric Filters for Coal Fired Power Stations
iii Thermal Electricity Generation in Queensland
iv Conversion of Kwinana Power Station from Oil to Coal Firing
v Remote Area Power Supply Alternatives in Western Australia

XVII Materials Handling

XVIII Oil Industry

XIX The Snowy Mountains Scheme

XX The Sydney Opera House

XXI The Sydney Harbour Bridge

XXII Hamersley Iron

XXIII North West Shelf

Sources and References


Contact us

Conversion of Kwinana Power Station from Oil to Coal Firing

The construction of two 200 MW oil fired boilers was well advanced when a sudden change in the price and availability of fuel oil occurred. An economic analysis was conducted and it was concluded that the conversion of the partially completed units to combined coal and/or oil firing was the most feasible means of alleviating the financial pressures which had resulted. At the time of placing the order for coal conversion No. 5 unit was virtually complete, with No. 6 approximately 50 per cent complete. It was decided to complete No. 5 for oil firing and convert No. 6 to dual coal/oil firing first, followed by the conversion of No. 5 after a four month proving period with No. 6 running on coal.

During the construction of No. 6, however, it became a matter of concern that the winter peak loads in 1979-80 could not be met without substantial reduction in spinning reserve.

The Commission therefore decided to re-schedule the work associated with No. 5 to meet a 'steam to set' date of 1st February, 1979, thereby enabling the unit to be available during the winters of 1979 and 1980. This accelerated programme was made feasible by the completion of certain major civil works whilst the No. 5 unit was operating on oil and by removing it from service on the 1st November, 1977, for conversion prior to completion of unit 6.

In view of the complex nature of the conversion project and to assist with project management control, a project network diagram for each unit was prepared. Use of this management tool has been an important aid in completing the conversion of unit 6 ahead of schedule and maintaining the conversion of unit 5 on programme.

The original total project budget estimate based on costs as at December 1975 was $26 M but this was expected to escalate during construction to a final figure of $42 M in fact the final cost was $32 M.

The provision of coal handling, unloading and storage facilities, ash handling plant, electrostatic precipitators, civil works and major boiler component modification, in areas in which no allowance had originally been made for them, necessitated the adoption of unusual plant arrangements to circumvent severe space limitations.

A completely new set of environmental and town planning clearances were required, focusing on coal transport, handling and combustion, reduced sulphur oxide emissions and slightly increased nitrogen oxides emission. An environmental impact statement was proposed which included extensive consultation with the local government body concerned, the Kwinana Town Council, and a public open meeting arranged and chaired by that Council. This feature of the project contributes to its uniqueness and complexity along with the extreme difficulty of performing major civil works in confined spaces adjacent to operating plant, including energised 330 kV switchyards and transmission lines. The Kwinana project received an 'Engineering Excellence Award' from the Institution of Engineers Australia in 1980.

Organisations in Australian Science at Work - Institution of Engineers, Australia; thermal power stations, named

People in Bright Sparcs - Sutherland, K. N.

Previous Page Australian Academy of Technological Sciences and Engineering Next Page

© 1988 Print Edition pages 405 - 406, Online Edition 2000
Published by Australian Science and Technology Heritage Centre, using the Web Academic Resource Publisher