R/€ = 15.11Change: 0.01
R/$ = 13.34Change: 0.06
Au 1152.52 $/ozChange: 8.37
Pt 975.00 $/ozChange: 22.00
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?

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 About Us
RSS Feed
Article   Comments   Other News   Research   Magazine  
Jun 29, 2012

Steam cycle solution introduced to SA

Engineering|Africa|Flow|GE|GE Intelligent Platforms|Installation|Safety|Screen|Screens|System|Systems|Water|Africa|South Africa|Energy|Equipment|Flow|Large Systems|Maintenance|Steam Cycle Solution|Systems|Bill Pezalla|Power|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
Creamer Media Senior Deputy Editor Online
© Reuse this Comment Guidelines (150 word limit)
Other Eskom News
GAME PLAN Eskom's strategic focus points could include ensuring the viability of projects before commissioning and ensuring their completion on time and within budget
Power utilities need to master the act of balancing scheduled and unscheduled maintenance, says global growth consulting firm Frost & Sullivan. Programme manager for energy and environment, Johan Muller, adds that maintenance can be managed, provided a utility’s...
HOLISTIC OFFERING Structa’s subsidiaries provided significant quality, sufficient capacity and a quick production turnaround on the Kusile and Medupi flue ducting
Steel products and related services company Structa Group’s manufacturing, machining and refurbishment services subsidiaries Turnmill Proquip Engineering and One Steel Engineering are supplying flue-ducting material to State-owned power utility Eskom’s Kusile power...
CHRIS WHELAN There is a strong push in the Western Cape to pursue gas turbines to supplement national baseload power generation
The use of gas turbines should, ideally, be conceptualised and the related infrastructure constructed as soon as possible in the Western Cape to overcome current electricity undercapacity issues and grow future demand, says business leadership organisation Accelerate...
Latest News
Updated 30 minutes ago Universal Coal’s independent directors have again called on shareholders not to accept fellow South Africa-focused IchorCoal’s A$0.16 a share cash takeover offer. Ichor, which already held a 29.99% stake in Universal, on October 1, officially launched its takeover bid.
President Jacob Zuma
Updated 2 hours 24 minutes ago President Jacob Zuma on Thursday said the National General Council took place amid a tumultuous economic climate, however, South Africans have something to smile about. Addressing guests on the eve of the NGC at the Gallagher Convention Centre on Thursday, Zuma...
Updated 2 hours 31 minutes ago Ethiopian Airlines told Boeing Co that the shutdown of the US Export-Import Bank has triggered concerns about the airline's ability to take delivery of Boeing jets already ordered, and would force it to reevaluate future orders. Boeing released a letter from Tewolde...
Recent Research Reports
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
Road and Rail 2015: A review of South Africa's road and rail sectors (PDF Report)
Creamer Media’s Road and Rail 2015 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail infrastructure and network, the funding and maintenance of these respective networks, and...
Defence 2015: A review of South Africa's defence sector (PDF Report)
Creamer Media’s Coal 2015 report examines South Africa’s coal industry with regards to the business environment, the key participants in the sector, local demand, export sales and coal logistics, projects being undertaken by the large and smaller participants in the...
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
Real Economy Insight: Automotive 2015 (PDF Report)
Creamer Media’s Real Economy Year Book comprises separate reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, gold, iron-ore and platinum sectors.
Real Economy Insight: Water 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
This Week's Magazine
BUSINESS LEADERS PANEL Adam Craker, Ivor Chipkin, Alan Hosking and Allon Raiz at the 6th IQ Business Active Growth conference
At the sixth IQ Business conference held in Sandton last month, a panel of business leaders and academics advocated that business reclaims the initiative to spur growth in South Africa amid fragmented and haphazard political direction. Management consulting firm IQ...
The building industry is an essential component of the South African economy as it contributes about 15% to the gross fixed investment that drives the economy. However, with the country’s economy going through a tough time currently, this, in turn, reflects on the...
The recipients of the 2015 South African National Energy Association (Sanea)/South African National Energy Development Institute Energy (Sanedi) Awards were announced at a ceremony and banquet in Sandton last month. Sanea chairperson Brian Statham named Exxaro CEO...
ASHER BOHBOT EOH’s corporate goals were originally aspirations, but the company is relevant and is making a difference in the territories it operates in
As South African information technology (IT) firm EOH posted another full year of strong growth, CEO Asher Bohbot, known for his frank words, people-centric management style and stoic humanism, attributed the company’s continued South African and African growth to...
International heavy-equipment engine manufacturer Cummins’ regional distribution centre (RDC) in Woodmead, Gauteng, has halved the average logistics distribution time for clients in Southern Africa and allowed for critical or long-lead stock to be kept closer to...
Alert Close
Embed Code Close
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
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