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28 November 2022 | Story Rulanzen Martin | Photo Anja Aucamp
Prof Melanie Walker
Prof Melanie Walker is one of two NRF A1-rated scholars at the UFS.

The Higher Education and Human Development (HEHD) research group under the leadership of Prof Melanie Walker has grown to become a pocket of academic excellence and innovation at the UFS. “The group’s research positions universities (if ‘reimagined’) as potentially powerful sites for achieving human development by challenging the status quo and entrenched interests and inequalities,” Prof Walker notes. 

HEHD researchers draw substantially on the capability approach, which offers a contribution to higher education in South Africa, primarily because it derives from a normative framework that places human flourishing as its primary goal, chiming with the country’s transformation goals.

Prof Walker is an internationally acclaimed researcher and academic and one of three A-rated National Research Foundation (NRF) scholars at the UFS. In 2021, she was elected as the first president of the international Human Development and Capability Association (HDCA) from the Global South. Back then, Prof Walker said the UFS already had a strong research presence within the HDCA, and her group was known for its work in African higher education. The HDCA brings together academics who generate ideas and research on human development.

The research group, which was founded by Prof Walker, is an embodiment of the quality and of the impact elements of the institutional narrative of the UFS. The HEHD is now happily based in the Centre for Development Support within the UFS Faculty of Economic and Management Sciences.

Top-tier research outputs from HEHD

The outputs of the HEHD research group have a far-reaching impact, given the nature of its national and international affiliated researchers, students, and collaborators. Members of the group have published 19 peer-reviewed books since 2013, and since 2016, the HEHD has graduated 20 PhDs whose research focuses on diverse aspects of higher education and capabilities across the sub- Saharan region. A range of international examiners in the USA, the UK and Europe attest to the quality of the HEHD’s doctoral graduates.

“I am immensely proud of the quality of the research and collective ethos of our graduate students and our researchers and, as importantly, the substantive focus on human development and social justice in and through higher education in Africa,” Prof Walker says. “As Professor Tristan McCowan and others have noted, this group is quite unique internationally,” she continues.

Projects and research collaborations

The numerous institutional and national and international research collaborations are also testament to the interdisciplinarity of Prof Walker’s academic approach. Various recent and current projects attest to this, for example, the recently completed Miratho project on inclusive higher education learning outcomes for low-income rural youth with Birmingham and Nottingham.

Some of the the book titles that have been published by HEHD members past and present, on display on the wall in the Benito Khotseng Building on the Bloemfontein Campus. (Photo: Anja Aucamp) 


A further current example is the project under the Transforming Education for Sustainable Futures (TESF) with Bristol and Rhodes led by Dr Mikateko Mathebula, and a new edited book underway with Alejandra Boni and Diana Velasco (Spain) on higher education and reparative futures.

 
Furthermore, national collaborations such as the project with colleagues in the Centre for Development Support at the UFS and the University of Pretoria, which will be investigating the sustainable (ecologically and socially), developmental South African university and justice facing university futures from a variety of stakeholder 
perspectives.

This research project is informed by the 17 Sustainable Development Goals, because achieving them cannot be done without the contributions of higher education institutions.

It is thus evident that under the leadership of Prof Walker, the HEHD research group is now established as one of the finest research groups at the UFS and contributes actively to the research and academic excellence at the university.

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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