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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

Consumer Science at the UFS awards three PhDs
2015-07-08

Dr Gloria Seiphetlheng, Dr Natasha Cronje, Dr Ismari van der Merwe and Prof Hester Steyn.
Photo: Leonie Bolleurs

For the first time in its history, the Department of Consumer Science in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) earned three doctorates at one graduation ceremony this year. This week three PhDs were awarded to Ismari van der Merwe, Natasha Cronje, and Gloria Seiphetlheng at the Winter Graduation that took place on the Bloemfontein Campus.

Electrochemically-activated water is widely used in the food and other industries, due to its excellent environment-friendly properties. However, it is not used in the textile industry yet, because too little research has been done to determine the possible positive and negative impact it may have on textiles.

With the thesis, The evaluation of catholyte treatment on the colour and tensile properties of dyed cotton, polyester and polyamide 6,6 fabrics,  Dr Cronje, a lecturer in the UFS’s Department of Consumer Science, and Dr Seiphetlheng from the Serowe College of Education in Botswana,  provided major new information with the thesis, Anolyte as an alternative bleach for cotton fabrics. This information is essential when considering the application of catholytes and anolytes in the textile industry.

Electrochemically-activated water divides water in catholytes and anolytes. The anolyte part is used as a disinfectant and bleach. It is not really suitable for domestic use, as it can cause colour loss in coloured textile products. However, it can be used in the hospitality industry where white sheets, towels, etc., are used and washed on a regular basis.

The catholyte part of the water has properties similar to washing powder. It can also be used in the textile industry as washing liquid.

According to Prof Hester Steyn, Head of the Department of Consumer Science and supervisor of all three PhD candidates, this electrochemically-activated water is also very eco-friendly. “It has a short shelf life. If the electrochemically-activated water isn’t utilised, it returns to normal water that wouldn’t harm the environment. No water is therefore lost, and no waste products are released that would contaminate the environment,” she says.

Dr Van der Merwe’s research focused on Degumming Gonometa postica cocoons using environmentally conscious methods. A lecturer in the Department of Consumer Science, she demonstrated that simple and environmentally-friendly methods can be used with great success to procure wild silk from the cocoons of the Gonometa postica worms living in the camel thorn trees found in the Northern Cape and Namibia.

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