http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.00Change: 0.12
R/$ = 12.03Change: 0.26
Au 1182.60 $/ozChange: -3.20
Pt 1138.50 $/ozChange: -2.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Jun 29, 2012

Steam cycle solution introduced to SA

Back
Engineering|Africa|Flow|GE|GE Intelligent Platforms|Safety|Screen|Screens|System|Systems|Water|Africa|South Africa|Energy|Equipment|Flow|Large Systems|Maintenance|Steam Cycle Solution|Systems|Bill Pezalla|Power|Water|Operations|Combustion Control Algorithms|DCS Technology|Drum-level Control Algorithms|Thermal Unit Combustion Compensation Algorithms
Engineering|Africa|Flow|GE|Safety|Screen|Screens|System|Systems|Water|Africa||Energy|Equipment|Flow|Maintenance|Systems|Power|Water|Operations|
engineering|africa-company|flow-company|ge|ge-intelligent-platforms|safety|screen|screens|system|systems-company|water-company|africa|south-africa|energy|equipment|flow-industry-term|large-systems|maintenance|steam-cycle-solution|systems|bill-pezalla|power|water|operations|combustion-control-algorithms|dcs-technology|drum-level-control-algorithms|thermal-unit-combustion-compensation-algorithms
© Reuse this



Systems automation company GE Intelligent Platforms expects to see significant demand in the South African market for its US-developed distributed control system (DCS) steam cycle solution for power plants, which was launched last month, global energy industry manager Bill Pezalla tells Engineering News.

The steam cycle solution combines proven and comprehensive capabilities, providing coordinated control of the boiler, boiler auxiliaries and turbine auxiliaries, along with preconfigured, customisable control strategies and screens, he explains.

The system has a set of unique preconfigured templates with complete control strategies and screens, which can easily be tailored to a specific plant’s needs.

It also contains libraries representing control strategies, control elements and visualisation elements, allowing the user to manually instance and tie objects in the libraries together to form complete, customised appli- cations, using simple user interfaces and without the need to reprogram the solution.

GE believes this technology could make a difference to how power plants in South Africa are run and is currently negotiating with a number of possible customers, he says.

The solution can be installed on new plants but, at this stage, the company aims to enable plants with older boilers to make use of this modern technology.

“The DCS technology can be used on any size plant, which will further increase demand, as it enables small and medium-sized boilers to make use of technology that could previously only be used on large systems,” Pezalla adds.

GE’s engineers have worked with boilers for many years and have extensive knowledge of different types of power plants and their equipment. This has allowed the company to simplify the control of boilers by enabling operators to drag and drop the technology on a computer screen for easy installation.

“Our DCS isn’t new, but the fact that we reduced the logic down to enable it to be rapidly installed is a new concept,” he says.

Power plants are running for longer with shorter maintenance outages and the advantage of GE Intelligent Platforms’ DCS is that it is an open system that works with any type of boiler and can be implemented during a short maintenance outage, Pezalla explains.

The speed of system implementation results in increased uptime, which, in turn, increases production.


“When boilers are controlled manually, the process will not be as exact as when it is controlled by an automised system. Automising the process improves its efficiency with regard to manpower and the amount of fuel and water that is used,” Pezalla says.

By leveraging the system’s combustion control algorithms, a high level of precision and accuracy can be maintained, which leads to more efficient boiler operations, he notes.

The solution also allows real-time control to ensure the uniform loading of fuel sources and greater uniformity in air flow, he adds.

Meanwhile, operators can easily measure and analyse combustion and emissions, as the solution delivers a holistic view of the efficiency metrics and provides actionable insight to assist in decisions to increase the levels of energy production while reducing fuel consumption.

By using this system, fuel use can be reduced by 3% to 5% and system implementation time can be reduced by 50 % to 80%, Pezalla points out.

Further, the system’s drum-level control algorithms automatically respond to varying steam loads and pressure variations, which assists in ensuring that boilers operate within the correct safety parameters.

Boiler safety is also increased through the careful tuning and precise control of all steps of the process, such as purging the furnace before fuel firing and automated burner sequencing, including pilot and main flame light-offs as well as by avoiding repeat purging and reinitiation of the start-up sequence.

Meanwhile, the GE solution ensures smooth and consistent steam production with fossil fuels and biomass fuels by handling variations in the quality and moisture content of fuels with its advanced British thermal unit combustion compensation algorithms, which reduce carbon monoxide emissions.

Consistent steam production is also beneficial, as inconsistent steam can cause fan blades to fatigue and break, he says.

Boiler damage is prevented by maintaining water levels to avoid low water conditions, which could damage the boiler or lead to an explosion, says Pezalla.

Edited by: Chanel de Bruyn
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Eskom News
TINA JOEMAT PETTERSSON Government has held two nuclear vendor parade workshops
Government last month announced that it had successfully concluded the second nuclear vendor parade workshop with delegations from China, France, South Korea and the US, in its bid to source experienced nuclear energy partners to help with South Africa’s nuclear...
HERTZOG VERHOEF The Medupi power plant project provided us with an opportunity to establish ELB Construction
Engineering solutions provider ELB Engineering Services says that its conveyors moved the first coal to the mill bunkers of boiler 6 at Medupi power station in Lephalale, Limpopo last month. ELB Medupi project manager Hertzog Verhoef says the coal to bunker process...
LYNNE BROWN The next few years are going to be tough
Johannesburg-based chemical manufacturer Reba Chemicals attended this year’s Lephalale Mining Expo, hosted by Mining and Technical Exhibitions (MTE), to establish partnerships that can expand the company’s reach in the area. Reba Chemicals MD Freddy Motau told...
More
 
 
Latest News
The government of St Helena (SHG) and its Department for International Development (DFID) on Friday appointed airline Comair as the provider of air services to St Helena with the Island’s first airport opening in 2016. Comair would offer a weekly Saturday service,...
The Department of Communications (DoC) digital terrestrial television (DTT) project team was accelerating its efforts to “revive” South Africa’s long anticipated transition from analogue to digital broadcasting. After a more than six-year delay, the next few weeks...
Paul-Roux de Kock
Residential property prices are forecast to grow at 7.2% this year, on the back of 6.72% growth in 2014.
More
 
 
Recent Research Reports
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.
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
 
 
 
 
 
This Week's Magazine
Projected capital expenditure (capex) in the South African automotive assembly industry should reach a record R7.48-billion this year, says the National Association of Automobile Manufacturers of South Africa (Naamsa) in its 2014 fourth quarter business review. Capex...
After several years of navigating project-threatening red tape and currency fluctuations, the 4.4 MW Bronkhorstspruit biogas power plant, which will supply clean energy to a leading automotive manufacturer in Gauteng, is expected to enter production before June....
RESOURCEFUL The raw material for the pilot plant would be supplied from the dissolving wood pulp plants at Sappi’s Saiccor and Ngodwana mills, in South Africa, and the Cloquet mill, in the US
South African paper and pulp producer Sappi reported earlier this month that it would build a pilot plant for the production of low-cost Cellulose NanoFibrils, or CNF (nanocellulose) at the Brightlands Chemelot Campus in Sittard-Geleen in the Netherlands.
The long-term outlook for Nigeria is a country that has the potential to be very strong. So affirmed International Monetary Fund (IMF) Nigeria Mission Chief and Senior Resident Representative Dr Gene Leon on recently. "But we are starting from a point of huge...
Poor infrastructure planning and inadequate maintenance are becoming increasingly problematic for new developments and the associated infrastructure required to support such developments. In many urban and rural municipalities, the state of infrastructure has been...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $96 Close
Subscribe Now for $96