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10 June 2024 | Story Precious Shamase | Photo Supplied
Prof Richard Ocaya
Prof Richard Ocaya, Associate Professor from the Physics Department.

Prof Richard Ocaya from the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) Qwaqwa  Campus has achieved a significant milestone with a newly patented invention. This patent, developed in collaboration with researchers from Turkey and Saudi Arabia, is the result of work that began in 2017, focusing on a special material known as graphitic carbon nitride.

This breakthrough in temperature measurement technology aligns perfectly with the university's Vision 130 commitment to innovation and addressing global challenges. The new device offers a unique solution to a longstanding issue in the field, providing accurate temperature measurements across an extremely wide range. Existing solutions often require multiple devices, leading to increased costs and reduced accuracy, but this invention simplifies the process.

The device, based on a combination of graphitic carbon nitride and silicon, can measure temperatures from -250°C to 250°C with exceptional consistency and linearity. This range and accuracy set it apart from current technologies, making it suitable for various applications, from standard temperature measurement to specialized settings involving extreme temperatures. It could be especially valuable in deep-space exploration, where equipment faces drastic temperature fluctuations.

The patent underscores the university's commitment to fostering collaborative research, a key aspect of Vision 130. Prof Ocaya attributes the success of the invention to the robust nature of the team, established in 2015. The team is now seeking to commercialize the technology by licensing it to a suitable partner, with organizations like NASA expected to show significant interest.

Prof Ocaya advises other academics considering patenting their inventions to ensure the patent solves a real problem uniquely and is based on sound principles. This makes the invention reproducible and protects it from being copied, assigning exclusive rights to the patent holder. Patenting allows for either manufacturing the devices or licensing them to third parties for royalties and profit. He notes that the main consideration is that the innovation must be practical and solve a specific problem in a novel and commercially viable way. He also acknowledges the challenge many academics face, as the "publish or perish" mentality often leads to choosing scientific articles over patents.

Despite securing the patent, Prof Ocaya and his team continue their research efforts, exploring new possibilities while balancing practical research with academic pursuits. He believes the invention will significantly impact the field of temperature measurement, being integrated into many new designs requiring such measurements.

The university proudly supports this innovative research and anticipates its real-world impact, furthering Vision 130's commitment to increasing UFS's research capacity and capability.

News Archive

UFS on energy-saving mode
2009-09-15

The University of the Free State (UFS) has undertaken several measures to reduce energy consumption on the Main Campus in Bloemfontein.

“Part of Eskom’s strategy is that all the main universities must reduce their electricity consumption. Because the university is the second biggest user of electricity in Bloemfontein we have to cut our consumption according to the new energy policy,” said Prof. Niel Viljoen, Chief Director of Operations at the UFS.

“Electricity is also expensive and if we look at global warming and everybody’s responsibility, I think we all have a moral obligation to save energy,” said Prof. Viljoen.

“The energy crisis of January 2008 and beyond, with its load-shedding limitations, was a major driver for the government to introduce the Power Conservation Scheme,” said Mr Anton Calitz, the UFS’s electrical engineer.

The measures put in place by the UFS include amongst others:

The introduction of a solar water-heating system in the residences, which is a first of its kind in Bloemfontein.
An investigation is also being launched into alternatives and the effective heating of rooms in the residences.

Feasibility studies are currently being conducted to determine whether energy saving can be achieved with radiation panels.

Energy-saving lights have been installed in the following buildings: the Architecture Building, Genmin Lectorium, Geology lecture halls, Winkie Direko Building, George du Toit Building, Sasol Library, Francois Retief Building, as well as in the residences. This measure has resulted in massive energy saving.

Energy meters for the Library, Computer Laboratory Building, François Retief Building and Steyn Substation are being planned as the first phase.

Real-time metering will result in every UFS computer user being aware of power consumption on the campus.

New lift motors and control systems that reduce energy consumption have been installed at the Agriculture and the George du Toit Buildings.

In the Computer Laboratory Building the temperature adjusting point for the venues is set at 22 °C and, in the case of new projects, green guidelines are applied.

It is expected that the government and local authorities will bring more pressure to bear on the UFS to save energy. Applications for increased capacity will possibly be linked to energy-saving targets.

This trend will continue until 2014 when additional power stations will be put into operation.

“Our aim is to save 10% on energy consumption,” said Prof. Viljoen.

“Heavy financial penalties will be imposed if a 10% saving is not achieved,” added Mr Calitz.

On average, our energy consumption per day this year is 128,964 kWh as compared to last year’s 119,752 kWh.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za  
14 September 2009

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