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10 March 2020 | Story Rulanzen Martin | Photo Victor Sguassero (kykNET)
Chris Vorster
Chris was on stage in 'Die Hart Verklap' at the Toyota US Woordfees in Stellenbosch recently.

“Difficult and very strange,” is how Chris Vorster, veteran actor and Drama lecturer at the University of the Free State (UFS) describes his role as Bas Koorts in the supernatural thriller Die Spreeus

For Chris, the biggest challenge during the filming of Die Spreeus was to work in front of a green screen. “You never see the monsters and things attacking you, it is only added later on during the editing process,” he said. Therefore, he and his co-actors were expected to use their own imagination “to be frightened, and to duck and dive from something that does not exist.” 

This Afrikaans thriller series has recently been nominated in five categories of the South African Film and Television Awards, including Best Television Drama, Best Cinematography, and Original Sound and Sound Editing. 

Chris was also nominated for a Fiësta award in 2019 for his one-man performance in the theatre production, Die Hart verklap. “It is fantastic to still be recognised for my work,” he said, “but I also have to give recognition to Dion van Niekerk, because without a good director, any actor will be lost.” Van Niekerk also lectures Drama at the UFS.

Being a lecturer broadens his knowledge 

Chris joined the UFS Department of Drama and Theatre Arts in 2015 as lecturer in the programme for Film en Visual Media. “Everything I learn in the industry I apply as lecturer, and research and teaching feed more knowledge on acting, directing, and especially writing,” he said. After five years, being involved with the UFS Department of Drama is still exciting to him. “This is where both lecturers and students get encouraged to do more than just breathing.” 

With his busy schedule of teaching and acting, it remains important to him that South Africans are still able to tell stories – “in any language”. He considers it a privilege for anyone to work in their mother tongue. This is also why the symbiosis between his work as actor and lecturer is so appealing.

News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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