R/€ = 13.68
R/$ = 12.05
Au 1188.65 $/oz
Pt 1141.50 $/oz
Apr 18, 2003
Duvha set for refurb after explosionBack
© Reuse this The rebuilding of the damaged portion of Duvha power station, in Mpumalanga, will begin this month, power station manager Johan Prinsloo has confirmed.
This is after portions of the station were destroyed after an accident caused by a crack at the root of the low-pressure two (LP2) cylinder blade.
This resulted in 15 other blades breaking off and severe turbine movement and vibration.
Pieces of equipment were catapulted through the roof and an explosion led to a severe fire which raged for more than two hours.
Eskom generation MD Ehud Matya did not put a figure on the refurbishment of the power station.
He said that press estimates of R2-billion probably included the rebuilding of the unit from scratch.
These figures are much higher than what will actually be spent, since Eskom will be salvaging some equipment from the plant and using some spare equipment from sister power plants, noted Matya.
As the company is going into a commercial pro-cess to buy new and like-new equipment, he did not want to give a breakdown of costs.
The commercial preparation and award process is 60% complete, Engineering News was informed.
Prinsloo confirmed that a stripdown and damage assessment had been completed and that a compilation and review of the scope of work was 95% complete.
He noted that the exciter, generator and LP2 shaft would have to be replaced, while the high-pressure and interim-pressure shafts would have to be repaired.
Unit two of the power station is expected to be back on load by the end of this year, Prinsloo reported.
However, the biggest challenge to the repair process remains having to replace the more-than-200-t turbine generator.
This will have to be lifted using a special crane, and the foundations modified for this purpose.
The replacement generator, due to its size, is also expected to take several weeks to be moved from the coast to the power station.
It is proposed that a second-hand, or as-new, unit be bought from the UK.
Prinsloo indicated that staff are enthusiastic about being involved in the maintenance project, which is on a scale greater than has ever been undertaken before.
Matya, in turn, commented that, due to the accident, the company had had to readjust its plans to cater for demand, and had experienced a financial impact.
However, it was able to draw on excess capacity within the group to cater for a sixth of the power plant’s capacity, or 600 MW, not being available.
There had also been no negative effect on customers since the unit was not producing electricity at the time of the accident.
In addition, since power generated at a particular power station is not earmarked for a specific customer, but fed into the power grid, specific customers were not affected.
Matya confirmed that Duvha remains one of the cash cows of the company’s power station group since it was built at the mouth of a mine and is provided with a steady, reliable source of coal.
Edited by: Deborah Spicer© Reuse this Comment Guidelines (150 word limit)
Other Maintenance News
Steel plant processing technology, equipment and services specialist SMS Siemag South Africa, a division of SMS Group, has registered significant demand growth for preventative maintenance in the local ferrous, nonferrous and ferroalloys industries, paired with a 10%...
Gas conveying and compression company Aerzen sub-Saharan Africa subsidiary Airgas Compressors has noted a significant increase in the demand for maintenance and service contracts, as well as a 300% increase in it services division in the past 14 years, Airgas...
Having been awarded significant contracts to retrofit fans at several mining operations in South Africa in the past two years, high-performance fan designer and manufacturer MechCaL will actively focus on establishing a footprint in other industries, such as...
Recent Research Reports
Steel 2015: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2015 report provides an overview of the key developments in the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon...
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
This Week's Magazine
Mercedes-Benz will launch ten plug-in hybrid models by 2017, says the German automaker’s parent company, Daimler. Following the launch of the S 500 plug-in hybrid, March saw the introduction of the C 350 e, the second model to feature the drive-train concept. Under...
Energy Minister Tina Joemat-Pettersson's recent unveiling of something of a road map for an upscaled and accelerated deployment of independent power producer (IPP) capacity has been widely welcomed. Besides plans to accelerate and expand the hitherto successful...
South African Airways (SAA) acting CEO Nico Bezuidenhout has firmly denied reports that a stake in the airline was going to be sold to Air China. “Categorically, SAA is not in any talks with any airline to sell itself at the moment,” he stated at a media briefing at...
Russian State-owned nuclear group Rosatom has confirmed that it is in talks with Nigeria about the construction of nuclear power plants (NPPs) in that country, but has denied that any agreement has been signed. This follows a recent report in the Nigerian media that...
Gas products and services company Afrox has launched a pilot programme to deliver its range of Handigas liquefied petroleum gas (LPG) to domestic consumers to fill a gap in the market, thereby expanding its direct contact with end-users.
Next ArticleMaintenance vital to infrastructure sustainability