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18 March 2020 | Story Leonie Bolleurs | Photo Supplied
Solar car Team
Excited about a first for the UFS, Team UFS is entering the 2020 Sasol Solar Challenge. From the left, front, are: Fouché Blignaut, Mechatronic Engineering; Nathan Bernstein, Agricultural Engineering; Lucas Erasmus, Physics; middle: Barend Crous, Manufacturing and Instrumentation; Hendrik van Heerden, Physics (team leader); Antonie Fourie, Physics; Prof Danie Vermeulen, Dean of the Faculty of Natural and Agricultural Sciences (team director); Prof Koos Terblans, Head of the Department of Physics; Theo Gropp, Mechanical Engineering; back: Louis Lagrange, Head of the Department of Engineering; and Mark Jacson, Electronics.

An interdepartmental team from the University of the Free State (UFS) has announced that it will enter and participate in the 2020 Sasol Solar Challenge, scheduled to take place from 11 to 19 September this year. 

For the challenge, Team UFS will build a self-propelled manned vehicle that uses solar power systems to travel from point A to point B. The 14-member team of the UFS will travel on public roads from Pretoria to Cape Town via a predefined route over eight days. They will compete against more than 15 other teams, both local and international. The team that finishes with the greatest distance covered within the allotted time, will win the race. Teams will race every day between 07:30 and 17:00.

The four drivers to operate the vehicles will be selected from participating UFS departments in the coming months.

First solar car for the UFS
Dr Hendrik van Heerden from the Department of Physics has been planning the solar car project – Lengau (meaning Cheetah in Sesotho) – over the past year. He will start assembling the car in the next month together with colleagues and students from both the Departments of Physics and Engineering Sciences (EnSci).

Not only is this a dream come true, but it is also an opportunity for the UFS to show that they can do this. “We do not need the backing of a large and long-established engineering department to build a car like this, a young and vibrant team can do just as much!”, says Dr Van Heerden, who plans to complete the car within a few months, ready to be calibrated and tested later in June.

Capacity in green and sustainable engineering
“The ability of Team UFS to participate is possible due to recent research developments on photovoltaic technologies (solar cells) in the Department of Physics, a well-established leader in the field of surface and material sciences. The university also has established capacity in the fields of photoluminescence and nanomaterials (nanomaterials in energy storage). Additionally, with the establishment of EnSci, the university has expanded into this field, which will bring building capacity in the area of green and sustainable engineering to the project,” says Dr Van Heerden.

Promoting development into green technologies and 4IR
According to Dr Van Heerden, it is clear that the university wishes to become a strong role player in the development and utilisation of green energy, as can be seen in the implementation of relevant technologies on its various campuses. “Thus, for the UFS to be recognised in this research area, it is important to participate in related ‘green’ events where staff and students can build their capacity of practical knowledge by constructing participation equipment such as the solar car.”

He believes that this project has the potential to become a strong base for student training and capacity building in all technological fields, which can promote base development to 4IR.

News Archive

Groundwater management vital for groundwater sustainability
2016-11-09

Description: Dr Yolanda Kotzé Tags: Dr Yolanda Kotzé

Dr Yolanda Kotzé, Affiliated Researcher in the
UFS Institute for Groundwater Studies, is passionate
about the management of groundwater.
Photo: Rulanzen Martin

An interest in groundwater resource management ignited the spark for a PhD research thesis by Dr Yolanda Kotzé, Affiliated Researcher in the Institute for Groundwater Studies (IGS) at the University of the Free State (UFS).

Her PhD research thesis titled, A Framework for Groundwater Use Authorisations as Part of Groundwater Governance in Water Scarce Areas within South Africa, was the result of her interest in groundwater resource management. Dr Kotzé identified the agricultural sector as one of the major water users, and a decision was made to conduct research within this sector.  

Research funded by Institute for Groundwater Studies
Groundwater is water found underground in cracks and spaces in soil, sand, and rocks. It is stored in, and moves slowly through geological formations of soil, sand, and rocks (aquifers). The National Department of Water and Sanitation was indirectly the client for this research. The research project was funded by the IGS. Given the current drought, effective groundwater resource management can be achieved within all sectors through sustainable abstraction and use without over-abstraction.

“Groundwater can be effectively managed
in the agricultural sector by sustainable use,
monitoring the quantity of groundwater use,
and measuring groundwater levels,”
said Dr Kotzé.

Research addresses improvement of groundwater management
Her promotor, mentor, teacher, and friend, the late Prof Gerrit van Tonder, introduced her to the field of Geohydrology, and especially to groundwater resource management. “With my research, I made a significant contribution to the improvement of groundwater governance and groundwater resource management, as well as to the handling of groundwater use authorisations for irrigation purposes in South Africa,” said Dr Kotzé. With this significant contribution, she attempts to address the phenomenon of poor groundwater allocation and groundwater resource management by means of a framework. The development of this framework has shown the value of action research in an attempt to find a solution to a problem. “Groundwater can be effectively managed in the agricultural sector by sustainable use, monitoring the quantity of groundwater use, and measuring groundwater levels,” said Dr Kotzé.

The methodology of the research consisted primarily of action research, which has a five-phase cyclical process. The research was Dr Kotzé’s application for a PhD in Geohydrology at the UFS in 2012. The research was completed in 2015.

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