Jun 08, 2012
Manufacturer offers high-pressure monodrum boilersBack
Cape Town|Actom|Africa|Cogeneration|Efficiency|Export|Fire|Gas|Illovo|Industrial|John Thompson|PROJECT|Renewable Energy|Renewable-Energy|Training|Water|Africa|South Africa|Swaziland|Cape Town Facility|By-product|Cogeneration|Electrical Products Supplier|Energy|Excess Electricity|Manufacturing|Product|Products|Renewable-energy Capacity|Solutions|Environmental|Cogeneration|Power|Russell Warren
© Reuse this
The uncertainty surrounding power supply in South Africa is driving the need for industry to generate additional power to be brought on line within the shortest possible time; therefore, there is a need for higher-temperature and higher-pressure cogeneration boilers, says John Thompson industrial water tube boilers business unit GM Russell Warren.
“The sugar industry in South Africa did not previously need such high-pressure units but the possibility of favourable tariffs being paid for excess electricity generated is driving this industry towards higher efficiency.
“Bagasse is a by-product of the sugar- making process. This is a renewable biomass fuel and is coming under consideration for preferential tariffs,” he says.
Government is aiming to secure 3 725 MW of renewable-energy capacity from independent power producers by 2016. Of this, 12.5 MW is expected to be produced from biomass.
Warren states that the need for power and the need to reduce reliance on grid power have the potential to drive growth in the boiler industry, while the possibility of bagasse-fired boilers being considered for favourable tariffs could be an area of growth for boiler manufacturers.
He expects that, with the requirement for efficient cogeneration of power, boiler pressures within the sugar industry will increase from the current 31 bar standard up to 110 bar, depending on a company’s risk profile. Boilers of higher pressures have been installed in other industries by John Thompson.
The increase in pressure is resulting in a move away from bi-drum boilers, offered to the sugar industry in the past, to the use of monodrum boilers that offer several commercial and technical advantages over bi-drum boilers, he adds.
John Thompson’s high-pressure mono- drum boilers have been offered to the sugar industry, while boilers of similar pressures have been installed in the pulp and paper and other industries.
The monodrum boiler is best suited for cogeneration applications such as bagasse-fired boilers for the sugar industry.
Since the steam drum of the monodrum boiler is not in the hot gas stream, the unit is more robust and is less likely to suffer damage owing to low water conditions. Therefore, a thinner, more cost-effective drum can be used, says Warren.
The boiler inherently handles load swings well and it offers a fast start-up curve, thereby reducing the time from cold to steam generation. The evaporator bank is also easily maintainable.
The manufacturing of boilers takes place at John Thompson’s works in Cape Town, where the entire pressure envelope of its monodrum boilers will be manufactured.
The Cape Town facility employs about 400 people and also exports the fire- tube range of package boilers. Over 400 units have been exported over the last ten years.
Meanwhile, John Thompson last year completed a boiler project for sugar producer Illovo.
“Illovo Sugar embarked on an expansion programme at the Ubombo sugar mill, in Swaziland, which required a new 105 t/h bagasse-fired boiler to supply steam to a turbo-alternator set. Ubombo sugar is now able to export power to the Swaziland power grid and, in turn, improve the mill’s operational efficiency,” Warren points out.
The boiler was ordered in September 2009 and was commissioned and handed over in April 2011.
To alleviate the shortage of skilled artisans, John Thompson has embarked on an extensive apprentice training programme to meet the required labour demand. At any given point, John Thompson has about 60 apprentices in its apprentice training programme in Cape Town.
Edited by: Chanel de Bruyn© Reuse this Comment Guidelines (150 word limit)
Creamer Media Senior Deputy Editor Online
Other Agriculture News
Updated 6 hours ago In the midst of the current drought crisis facing South Africa, Global Forum for Innovation in Agriculture (GFIA) believes that there is a need for urgent long-term, sustainable, innovative solutions that will help mitigate the impact of climate change, in order to...
Recent Research Reports
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
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,...
This Week's Magazine
Updated 6 hours ago The BMW Group will invest R6-billion at BMW Group South Africa’s (BMW SA’s) Rosslyn plant to produce the next-generation X3 sports-activity vehicle (SAV) for the local and export markets. Rosslyn will continue production of the current 3 Series through its lifecycle,...
Updated 6 hours ago The lack of consequences for poor performance and transgressions on the part of contractors remains a significant hurdle to tackling South Africa’s service delivery challenges, delegates heard at the Consulting Engineers South Africa Infrastructure Indaba, on...
Updated 6 hours ago City of Ekurhuleni executive mayor Mondli Gungubele earlier this month officially named the city’s bus rapid transit (BRT) system, Harambee.
Updated 6 hours ago About 58% of unstructured data stored by companies is dark data, which means that the value or regulatory importance of the data has not been determined. Subsequently, most of the stored data add costs, rather than increasing revenue or reduce regulatory risks, says...
Updated 6 hours ago Effective logistics, import/export and manufacturing consulting services require detailed industry knowledge and experience, but can add significant value to these industries by providing expert advice on various technical elements in their value chains, says...