Blog Posts

Performance Testing at Gerotek

Performance Testing at Gerotek

On the 20th of October, we joined up with some of the other teams to do some performance testing on the High-Speed track at the Gerotek Testing Facility. Because we didn’t need to save our batteries, we decided to push the car, and we were able to sustain 110 km/h.

While giving our batteries a quick recharge, a tank joined us on the track to do some testing. This 28-ton tank uses electric motors and is powered by a diesel generator. The tank is incredibly quiet, and has a top speed of 120 km/h.

The next goal was to see how far we could travel at a more energy-efficient speed (50 ~ 75 km/h). We started with less than 60% battery, and we were able to complete 25 laps (a distance of 75 km).

Unfortunately, our testing was cut short, as we were hit by a major thunderstorm. We packed up in record time and headed back to Johannesburg.

 

 

Siemens TIA User Forum

Siemens TIA User Forum

After getting back from our epic 5000 km race around the country, we were invited to do a short presentation at the Siemens TIA (Totally Integrated Automation) User Forum. The event took place on the morning of the 16th of October at the Misty Hills Conference Center, and after the presentations we were served a hearty breakfast. Warren took the stage, and gave the attendees some background on the project, as well as our plans for the future. Unfortunately, the footage from the race was still in processing, so we couldn’t show any videos.

Ilanga I.I on Display

Warren on Stage

Breakfast

Welcome Home Party

Welcome Home Party

Not content with everything they’d already done for us during the 2012 South African Solar Challenge, our race support crew (which consisted of staff from UJ, Intellilab and the Resolution Circle) threw a welcome home party for us on the 5th of October. The event was open to the public, and a number of our sponsors came through to join us for the day.

 

Summary of the 2012 South African Solar Challenge

Summary of the 2012 South African Solar Challenge

Three weeks ago, the team got back from the 2012 Sasol Solar Challenge, which took place across the country, and spanned a distance of 5000 km (see the route here). Our vehicle, Ilanga I.I, participated in the Olympia Class and we ended up placing second in our class.

Since then, we’ve attended a few sponsor events in addition to being hard at work optimising the current car. This post contains a summary of the race, as well as a few choice photos. We’ll post the rest of the photos on Facebook.

We’d like to thank our support crew (which consisted of staff from UJ, Intellilab and the Resolution Circle) who made sure that our camp site looked amazing every night and ensured that we were well-fed and looked after.

Additionally, we’d like to thank our awesome sponsors for their support and involvement throughout our endeavour - without them, this project would not be possible!

Scrutineering

The static and dynamic scrutineering took place on the 15th and 16th of September respectively. The purpose of this was to ensure that all vehicles met the required regulations in terms of the competition and safety. Apart from a minor issue with the lighting (which was fixed on the spot), Ilanga I.I met all the requirements.

On the track at Zwartkops Raceway for the Dynamic Scrutineering

Day 1 – Pretoria to Vryburg

The race kicked off at the CSIR in Pretoria at 08:00 amongst a flurry of spectators, teams and media. Teams left the CSIR one-by-one, accompanied by all of their support vehicles. The international teams – Tokai University and Kenjiro Shinozuka were the first to leave.

At the Starting Line at the CSIR

About an hour after leaving, we hit a particularly bumpy patch of road which caused a number of vibration-induced issues. We pulled over a bit to sort them out, and implement a few preventative measures.

Leaving Pretoria

 

Day 2 – Vryburg to Upington

The next morning, we decided to make a few modifications to the car to address the vibration issues we were having. This also provided our batteries with a chance to charge before heading out. We arrived in Upington shortly before 18:00.

Morning repairs outside of Vryburg

Arriving in Upington

Pieter, Warren and Kyle

Day 3 – Upington to Springbok

While waiting for the day’s leg to start, we managed to get a decent charge. The panels were angled towards the sun to achieve maximum irradiance. Later that day, we stopped outside of Pofadder for a top-up charge.

Morning Charge in Upington

Midday Charge outside of Pofadder

Day 4 – Springbok to Cape Town

On the way to Cape Town, we decided to push the car a bit, and we were able to hit 110 km/h quite easily. That night, we attended a dinner with the other teams and the race organisers.

Quick stop after hitting 110 km/h

Dinner and Drinks at the Waterfront

Day 5 – Show day at Canal Walk

After a tiring first few days, the teams had a rest day on Saturday. All cars were on display on the roof of Canal Walk which generated a fair amount of local interest. We also made the front page of Die Burger that day.

Ilanga I.I on Display at Canal Walk

Die Burger - 22 September 2012

Day 6 – Cape Town to Oudtshoorn

The trip to Oudtshoorn was a cloudy one which meant we ended up using more of our batteries than we were hoping to. The mountainous terrain and driving in the rain didn’t help us much either.

Cloudy Day

Day 7 – Oudtshoorn to East London

This was the longest leg of the entire challenge – we needed to cover 675 km. Unfortunately, this meant that we needed to trailer the car for most of the day.

On the Trailer

Day 8 – East London to Bloemfontein

This leg wasn’t much shorter than the previous one, with a required distance of 600 km for the day. The endless road works also lengthened our travelling time considerably.

Even Tokai experienced delays due to the Stop-and-Go Controls

On the road to Aliwal North

Day 9 – Bloemfontein to Pietermaritzburg

Before arriving in Pietermaritzburg, we had to make it down Van Reenen’s Pass; a daunting thought when considering the twisting roads and serious downhills.

Van Reenen's Pass

Catching some late afternoon sun

Day 10 – Pietermaritzburg to Secunda

We faced a number of uphills after leaving Pietermaritzburg, so we decided to trailer for the first part of the day. That evening, all cars were on display at Graceland Casino in Secunda.

Leaving the Control Stop in Vryheid

On Display at Graceland Casino

Day 11 – Secunda to Pretoria

By the last day, the team was anxious to get home. Luckily, we only had to cover 250 km to get back to Pretoria, and we received a warm welcome after arriving at the CSIR.

Arriving at the CSIR

The Team after arrival

 

Interview on Kyknet and eNCA

Interview on Kyknet and eNCA

Emma de Villiers from eTV interviewed us yesterday outside our lab. We chatted about our car and the upcoming challenge. Stephan was interviewed for eNuus on Kyknet, and Haydn was interviewed for eNews Channel Africa. The videos are embedded below:

Interview on Talk Radio 702

Interview on Talk Radio 702

Warren was interviewed by John Robbie on Talk Radio 702 yesterday morning. In case you missed it, the audio clip can be found here:

Interview on 702 (mp3 mp3, 2.66 MB)

Sunday Times Article – Battle for the Sun: Investigating the UJ Solar Car

Sunday Times Article – Battle for the Sun: Investigating the UJ Solar Car

Thomas Falkiner, the Sunday Times motoring writer, wrote an article about the project that appeared in this week’s Sunday Times Life Style section.

An August wind gusts through the trees as I pull into the University of Johannesburg. Most of the students are trudging across campus like zombies; sucking back soft drinks as they walk off the effects of another misspent weekend in Melville.

But there is a small pocket of them, this platoon of sharp-minded individuals, who have been slaving away since dawn. Or so they say. And it is just when I am about to question their life priorities, poke them with the nerd stick, that I see the reason for their dumbfounding diligence.

It’s called the Ilanga and it suddenly makes the prospect of studying science and technology seem awesome. Named after the Zulu word for sun, Ilanga is a solar-powered vehicle that has been conceptualised, designed and built by a team of engineering and industrial design students.

Though most of them are too engrossed in their work to acknowledge my presence, one of the chaps who has been involved in the project since it started in 2011, Warren Hurter, walks over to explain why UJ has taken to chasing the sun.

“It began as an undergraduate project, a chance for us engineering students to show what we could do in a new and exciting way,” says Hurter. The students were instructed to manufacture a solar-powered vehicle that incorporated everything from energy efficiency through to lightweight composites and cutting-edge aerodynamics.

“We had never done something like this before,” says Hurter. “They really threw us into the deep end.” And how. Solar cars aren’t exactly big in South Africa, so everyone concerned had to do a crash course in what it is that makes them tick. They also had to source suppliers, companies that could provide the specialist products they needed to get Ilanga rolling. Solar panels. Lightweight lithium-ion battery packs. All sorts of electrical bits and pieces — my understanding of which is still rather sketchy.

Members of the University of Johannesburg Solar Lab in Auckland Park, Johannesburg, with their Solar Car which they plan to partake in a 5 000km race around South Africa within the next two weeks. LifeStyle. Picture: KEVIN SUTHERLAND 04/09/2012

Read the rest of the article at Times Live

 

25 Degrees in Africa – Solar challenge a team effort for UJ students

25 Degrees in Africa – Solar challenge a team effort for UJ students

Written by Nichelle Lemmer

Students from the University of Johannesburg participate every two years in the Solar Challenge. The UJ’s solar team designed a solar car to take part in this race. The Solar Challenge seeks to drive science development of alternative energy by racing solar and hybrid vehicles across the country.

Replacing fossil fuels with energy from the sun could be the future of the motor-manufacturing industry. Students at the University of Johannesburg (UJ) not only explores this possibility by designing a workable solar car, but also attempt to show their skills as racers by participating every two years in the South African Solar Challenge race.

The project to design and build their first solar car, called Ilanga I, was launched in 2011 with the goal to participate in the South African Solar Challenge in 2012. The Solar Challenge is an epic, two-week race in solar-powered cars through the length and breadth of South Africa. The Solar Challenge seeks to drive science development of alternative energy by racing solar and hybrid vehicles across the country. It is organised in South Africa by the Advanced Energy Foundation and the Innovation Hub and begins and ends in Pretoria.

Teams entering the race have to build their own cars, design their own engineering systems and race these machines through the most demanding terrain that solar cars have ever seen. The race takes place every two years in the last week of September and the first week of October. The teams who participate include a mixture of local and international teams from across the world that competes in various classes for prizes, prestige and experience. The leading team in the 2010 race was the Japanese team from Tokai University. Each team must put their vehicle through gruelling qualifying and technical inspections. Teams that fail to meet the requirements may not participate. During the race, each team is escorted by their support team and two support vehicles.

The UJ’s solar team now prepares to race again at the end of this year. Nickey Janse van Rensburg, one of the lecturers in mechanical engineering who oversees the project, says this is a unique way of teaching engineering students. “This project gives them hands-on experience that will be valuable in industry. It is also a great platform to teach softskills like effective communication and team work,” she says.

According to her, it is essential to emphasise the importance of sustainable product development and green design to engineering students. “This is a fun way to introduce alternative energy and sustainable engineering design to the students at an early stage in their careers.” She says the development of sustainable products and designs can be used in various industries as all the sectors have to get on board to create a low-carbon economy.

Warren Hurter, a post-graduate student who manages the UJ Solar team says that they are relying on the knowledge and skills gained by designing and building Ilanga I to take on the challenge to build a second generation solar vehicle, Ilanga II. The team aims to complete the new solar-car model before 2014 to again participate in the Solar Challenge. “Our goal is to win the solar challenge in 2014.” He says this goal turns the project into a long-term challenge and gives post-graduate students the opportunity to continue with their master’s degree while working on an exciting project. “This project takes skills development to the next level,” he says.

Engineering students from the industrial design, electronic and mechanical departments participate in the project, creating a platform for all the engineers to work together. Janse van Rensburg says it also promotes the feasibility of a solar car and might even change the public’s perspective on alternative energy vehicles.

Janse van Rensburg says the project also sparks interest in the market as industry already came on board with sponsorships. “Making a success of the project is not solely depended on the students’ skills, but also on time and budget constraints.”

Article courtesy of 25° in Africa.

Direct link to the article: http://www.25degrees.net/index.php/component/option,com_zine/Itemid,146/id,1558/view,article/

Route Map

Route Map

After a number of requests for more detailed information regarding the route, we’ve finally put together a nice map showing all the anticipated stops and distances.

Route Map with Sponsors

Route Map

There is also a high-resolution PDF available for download:

UJ Solar - SASC 2012 Route - Print and Media (pdf pdf, 2.91 MB)

Update 22/08/12

Update 22/08/12

Four weeks left. The car will be back in the workshop tomorrow so we can set up all the wiring and solar cells and hopefully get the thing running ASAP. We have had some fun with Ilanga I doing some driving to log hours, running off lead acid batteries which were obviously far too heavy for the temporary bicycle wheels, but we carried on anyway, with pretty exciting results in the form of two impressively destroyed wheels (not ideal). Today is a quiet day as we prepare for the onslaught of work tomorrow (the calm before the storm) in the last stretch before testing, and the race…Wish us luck!!!