Tag Archives: solar

Improving agriculture, together

A new approach to horticultural spraying could be the result of a collaboration between design students from Kyoto Institute of Technology and Swinburne University in Melbourne.

“Yanmar is a manufacturer of farm machinery, and they asked us to solve a big problem for grape-growers,” says Natsumi Takamatsu, a design student at Kyoto.

“What we developed was a sprayer to mitigate the drift of sprayed agricultural chemicals. Really it was the actual viticulturists when we interviewed them and they were saying things like ‘If only I had something like this.’”

“Australia and Japan enjoy the seasons at opposite times of the year so we can conduct field research in the vineyards all year,” says Yoshiro Ono from Kyoto Institute of Technology.

Harnessing the sun and improving agriculture

Mitsubishi Heavy Industries have built a pilot concentrated solar power plant in Yokohama. It uses CSIRO technology now being manufactured by South Australian company Heliostat SA.

“We’re making seven-and-a-half-metre square solar mirrors,” says David Linder-Patton, the CEO of Heliostat SA.

They focus the sun’s energy into a tower receiver that generates heat which can be used in industries such as steel manufacturing, brick processing and mineral refining.

The Mitsubishi plant will test their technology on receivers they have developed and also CSIRO’s suntracking technology and heliostat manufacturing.

“Working with companies the size of Mitsubishi helps us to get to industrial scale a lot quicker than we could do otherwise,” says David.

Reinventing catalysts

Professor Thomas Maschmeyer is working to integrate new battery and solar cell technologies into the walls and roofs of new houses, and to transform the somewhat ‘black art’ of catalysis—the process that cracks crude oil into useful fuels, oils and chemicals at every refinery. He has already helped to create over 200 new jobs with four spin-out companies.

Continue reading Reinventing catalysts

The walls and roof are battery

Lithium batteries have transformed power storage—from smartphones to electric cars and submarines. But like every battery their chemical composition changes through every charge cycle.

Lithium ions sitting in layers of graphite move between electrodes and change the oxidation state of, magnesium oxide, for example. The chemical rearrangements cause the graphite and oxide layers to physically expand and contract by up to 15 per cent at every cycle, cracking and detaching from the electrodes.

Continue reading The walls and roof are battery

Victoria in race to print solar cells

In the future, the entire roof of your house could be a solar panel, and you could harness the power of the sun to charge your mobile phone while on a remote bushwalk, thanks to cheap, printable solar cells.

In the future, your entire roof of your house could be tiled with printed solar cells like this one. Credit: DJ Jones, University of Melbourne
In the future, your entire roof of your house could be tiled with printed solar cells like this one. Credit: DJ Jones, University of Melbourne

Work is underway to perfect the “printing” of a film-like layer of solar cells that can be applied cheaply to hard or flexible surfaces to generate electricity from sunlight. Continue reading Victoria in race to print solar cells