Frans Louwinger is a Hydropower Engineer based in Knight Piésold’s Johannesburg office. He is a professional civil engineer and technical advisor for hydropower and pumped storage schemes and all other civil engineering related aspects related to power stations. He has been a practising engineer since 1977, and has been involved in the design of dams, hydropower stations, coal fired stations, power station related structures, bridges, general civil engineering, and hydraulic and geotechnical simulations.
His involvement in pumped storage design includes reviews of eight large schemes, feasibility studies of three pumped storage schemes, ranging from 1000 MW to 1,500 MW with heads up to 600 m, all in South Africa, and as the client’s engineer for tender and construction designs of the 1, 333 MW underground Ingula Pumped Storage Scheme, which is expected to be completed in 2016.
His experience in conventional hydro includes pre-feasibility and feasibility studies of more than 10 schemes in Africa, ranging from approximately 10 MW to 1, 500 MW with heads ranging from 15 m to 450 m. These studies also included the investigation of upgrading the spilling capacity at Cahora Bassa Dam and an additional north bank station at this site and a pre-feasibility study of the Mepanda Uncua scheme in Mozambique. He has also carried out due diligence studies of a number of existing hydro schemes, including upgrading, extensions, and economic analyses.
His involvement in coal-fired stations includes tender and construction designs of the cooling water ducts and turbine table foundations for the 6 x 600 MW Majuba Power Station, stability analyses of ash dams for the Matla Power Station, hydraulic simulation studies of blow-down systems for the Duvha Power Station, simulation studies of swell and swell pressures in expansive soft rock and the effect it would have on the existing boiler house and turbine house structures of the Lethabo Power Station, and life extension studies of a number of old power stations operated by Eskom.