8.4-capacity-increase-5-eda543cbc5d537bc.pdf

This report section details the technical requirements, budget considerations, and implementation schedules for a capacity increase and life-extension project at the Hendrina Power Station. It focuses on necessary upgrades to the boiler, turbine, and electrical plants to ensure operational reliability and compliance with South African air quality standards.

• To comply with the NEMAQA Act 39 of 2004 and the South African Air Quality Act, the Hendrina Power Station requires the installation of low NOx burners to achieve emissions of less than 750 mg/m³ and the application of Flue Gas Desulphurization (FGD) technology to reduce SOx emissions.
• The proposed capacity increase involves extensive boiler plant rehabilitations, including the replacement of main steam piping (designed for 200,000 hours or approximately 22 years), replacement of the blow down vessel, and the redesign of boiler corner pivot pins.
• The project identifies critical needs for the Boiler Draft Plant, including the replacement of ID fans because current capacity is insufficient for the proposed increase, and the replacement of PA fans with high wear resistant materials to combat fly ash erosion.
• The implementation schedule for the capacity increase varies by unit group: Units 1-5 require 126 days for supply and manufacture and 85 days for construction, while Units 6-10 require 540 days for supply and manufacture and 75 days for construction.
• Regarding the electrical plant, a 10% capacity increase is expected to be manageable for auxiliary transformers, MV cables, and the bus duct system. However, it is estimated that a 10% power increase for LV and MV motors would result in approximately a 5% increase in costs.
• Economic evaluations suggest that modular replacement of economisers and superheaters for Units 1-5 (and economisers for Units 6-10) would eliminate boiler tube leaks (BTL) for approximately 8 to 10 years post-installation.

APA

Centre for Environmental Rights (n.d.). 8.4-capacity-increase-5-eda543cbc5d537bc.pdf. https://cer.org.za/wp-content/uploads/2017/07/8.4-Capacity-Increase-5.pdf?x21779

Chicago

Centre for Environmental Rights. 8.4-capacity-increase-5-eda543cbc5d537bc.pdf. n.d. https://cer.org.za/wp-content/uploads/2017/07/8.4-Capacity-Increase-5.pdf?x21779.

Wikipedia

{{cite report |author=Centre for Environmental Rights |title=8.4-capacity-increase-5-eda543cbc5d537bc.pdf |url=https://cer.org.za/wp-content/uploads/2017/07/8.4-Capacity-Increase-5.pdf?x21779 |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centreforenvironmentalrightsnd84capacityincrease5eda543cbc5d537bcpdf, author = {{Centre for Environmental Rights}}, title = {{8.4-capacity-increase-5-eda543cbc5d537bc.pdf}}, institution = {Centre for Environmental Rights}, url = {https://cer.org.za/wp-content/uploads/2017/07/8.4-Capacity-Increase-5.pdf?x21779}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }