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17 June 2022 | Story Dr Nitha Ramnath | Photo Vivid Images
Heads of Mission to South Africa
Representatives of Heads of Diplomatic Mission in South Africa

The Rector and Vice-Chancellor of the University of the Free State (UFS), Prof Francis Petersen, hosted the Heads of Diplomatic Mission breakfast in South Africa on 9 June in Pretoria.

Fifteen foreign missions attended the event, with representation from Argentina, Belgium, Egypt, the European Union, Italy, Japan, Kenya, Lesotho, Namibia, the Netherlands, Nigeria, Spain, Switzerland, the United States, and Zimbabwe. The programme included a presentation by the Rector, followed by an engagement session.

Prof Francis Petersen’s overarching message during his presentation was that the UFS is ready to engage, co-create, and collaborate in the international arena, and that it produces graduates who are holistically developed to engage the world of work in their respective areas of specialisation. “We cannot underestimate the value of co-creation and collaboration between the Global North and Global South institutions of higher learning as equal partners. The UFS has an array of expertise that we deem as core drivers of partnerships, which has the potential to offer immense value through collaboration,” said Prof Petersen.

The event offered the UFS the opportunity to reach out and engage the international community on potential partnerships and collaborations. The Rector provided insight into the UFS, while positioning the university as well as current and potential collaborations with institutions of higher learning and other sectors in the respective heads of mission countries.

The Heads of Diplomatic Mission Breakfast was a collaboration between the Department of Communication and Marketing, the Office for International Affairs, and Institutional Advancement.


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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