Technologies for clean coal-power generation

  Coal is going to be an important component of power generation for many years to come. Increasing environmental requirements state that pollution associated with the burning of coal for power generation must be reduced if not eliminated altogether. Technologies for the removal of the harmful by-products associated with the burning of coal have been […]

Flexible gas engine concepts support renewable energy in power systems

  As the amount of variable renewable generation increases, in order for production to meet demand, sufficient balancing capability is needed. This requires greater flexibility in the power system, and generation technology based on internal combustion gas engines is one of the evident alternatives. Modern gas engine power plants with multi-engine concepts have numerous combinations […]

Pumped storage scheme’s HV yard successfully energised

  Eskom successfully energised the high voltage (HV) yard and three power lines at the Ingula pumped storage scheme in June 2014. The project is currently under construction near Ladysmith on the border of KwaZulu-Natal and the Free State. The Ingula pumped-storage scheme, located within the Little Drakensberg mountain range, 23 km north-east of Van Reenen’s, […]

Standby or auxiliary power generation set sizing

  With the decreasing reliability of the grid power, standby generators have become a common feature in consumer networks.  In some cases of high reliability requirements, fixed on-site generators are used as the primary power source. In other cases, where power outage during a performance or event is unacceptable, the standby plant is used as […]

Designing a high pressure feed water heater

  In a power generation process, the heat generated in the boiler can be used for heating purposes in other parts of the power plant in order to improve overall efficiency. A wide range of heat exchangers are used in power stations, some of which are feed water heaters, which are used to raise the […]

SA nuclear industry sharply criticizes the IRP 2010-2030 Update Report 2013

  A comprehensive review commissioned by the Nuclear Industry Association of South Africa (NIASA) is sharply critical of the draft Update Report 2013 of the Integrated Resource Plan for Electricity (IRP) 2010-2030 recently issued for comment by the South African Department of Energy (DoE).   The draft IRP 2010-2030  Update Report 2013 has not yet […]

Energy recovery from high pressure cold water in mines

  The mining industry in South Africa, being responsible for 18% of electricity demand, is seriously looking at alternative, more energy effective processes, without reducing output. Deep level mines require large volumes of cold water at the underground production levels. The energy consumed by these pumping installations constitutes approximately 14% of the mine’s overall demand. […]

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