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29 January 2019 | Story Xolisa Mnukwa | Photo Anja Aucamp
Prof Francis Petersen speech
“We can create an institution that operates and lives in the times of embracing and celebrating diversity, inclusivity, and academic excellence by ensuring that students own their time at university,” said Prof Francis Petersen.

25 January 2019 marked the official welcoming of the University of the Free State’s (UFS) first-year students, as they moved into their respective residences and were warmly welcomed on the UFS Bloemfontein Campus. This day also marked the start of the registration process for first-year students.

According to first-year Psychology student Keisha Claasen, who moved into her residence earlier on 25 January, her first experience of the UFS was daunting but exciting, as she had never been in a similar environment. According to Given Gwerera, who dropped his son off at the Karee residence earlier the day, “the UFS is an institution with great culture and an overall good academic record.” He further explained that he trusts his son to make full use of the opportunities presented to him, as he has a cool head on his shoulders.

On the evening of 25 January, an eager group of millennials, joined by their parents, took the first sip from their cup of varsity life as they assembled on the Red Square of the Bloemfontein Campus to meet the Rector and Vice-Chancellor, Prof Francis Petersen, members of Rectorate, the deans of all faculties, and the Student Representative Council (SRC) of the UFS.

“2019 will be a year of continued change; the UFS is thrilled about the prospect of bringing about opportunities for adaptation and realignment to the future,” said Prof Francis Petersen.

He further explained that the university prides itself in moulding its students into well-rounded individuals who will develop into globally competitive graduates as required in a diversity of landscapes. Prof Petersen urged first-years to remain open to the technological developments that go with globalisation, because of its permanent effects on society today.

First-years were further advised to take advantage of the rich pool of academic research and knowledge that is characteristic of the university and is piloted by UFS scholars, by engaging with and learning from them.

The inspiring night concluded on a colourful note, as the audience enjoyed an artistic laser show in front of the Main Building. Caption:

“UFS academics conduct research that forces the world to take note,” said Prof Francis Petersen at the official first-year welcoming ceremony on the UFS Bloemfontein Campus.

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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