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01 April 2020 | Story Valentino Ndaba | Photo Valentino Ndaba
Commonwealth read more
Takudzwa Nyamunda represented the UFS at the latest Commonwealth Futures Workshop where youth from across the globe convened to develop solutions for social issues.


Gender-based violence, global warming, and inequality are just some of the challenges faced by societies internationally. Examining this and other topics Takudzwa Nyamunda represented the University of the Free State (UFS) at the Commonwealth Futures workshop which convened at the Durban University of Technology (DUT). Participants from 13 nations gathered from 11-14 March 2020 to discuss the future of the world.
 
Over the course of four days, student leaders explored ways of bringing peace and nonviolence to the challenging issues we are facing in the world, under the theme: Reimagining Peace. The workshop was organised by the DUT in collaboration with the Association of Commonwealth Universities (ACU) and the British Council. 

The voice of young people 
International forums such as the Commonwealth Futures workshop are to Nyamunda a prerequisite in these modern times. Nyamunda believes that global problems warrant global solutions. According to the Industrial Psychology Master’s student, young leaders have a crucial role to play in nation-building. 

“My experience proved to me that the differences that come out of our diversity are indeed a source of strength demonstrated by the rich insights that came out of the conference,” said Nyamunda who is also an employee of the UFS Department of Human Resources. 

Producing practical solutions
The three-tiered workshop aimed to bring change to campuses across the world, in communities and beyond. This was the third workshop in the series which has taken place in India and the UK. The outcomes will directly feed into the 2020 Commonwealth Youth Forum to be held in Kigali, Rwanda later this year.

The group of students worked together to develop tangible solutions that address shared global issues such as gender-based violence, climate change and inequality. Joining the young leaders were expert speakers and organisations including the International Centre of Nonviolence, the Gandhi Development Trust, as well as the Commonwealth Countering Violent Extremism (CVE) Unit.

Global solutions for global problems
The Commonwealth states that with more than 60% of the Commonwealth’s 2.4 billion people younger than 30, the voices of young people have never been more important. Students across the globe are setting new agendas for social debates, challenging communities and governments to listen and work with young people to develop solutions to these intersecting issues and bring about real change.

In joining forces with other young thought leaders from around the world, Nyamunda drew on his experience as an International Students Association Founder and first President, the former 2017 Student Representative Council (SRC) member for International Students, and the Vice-Chairperson of the South African Board for People Practices: UFS Chapter. 

As one of the 40 delegates from across the globe, Nyamunda was given a sense of hope after he witnessed how keen young people are to build a better future. 

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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