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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

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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