World Solar Challenge Started in Australian Desert 113
photonic writes "The World Solar Challenge has just finished the first racing day. It is a 3000 kilometer race from Darwin to Adelaide for cars that are powered by solar energy only. The results from this day have not yet been published, but intermediate results suggest that the Dutch Nuon Solar Team is again on the lead. This team from Delft University of Technology has a reputation to uphold since they also won the previous two races in 2001 and 2003, the last one in a record breaking 97 km/h average.
The Tesseract team from MIT was less fortunate: during the qualification they got off track and rolled over. After some fixing up they still managed to qualify into 7th place on battery power, but with substantial damage to the solar panel their challenge will be finishing rather than winning."
Re:I really respect these guys (Score:3, Interesting)
That's not to take anything away from these engineers. To the contrary, it shows how little they have to work with. But solar cars are simply and provably not the future.
You're right in that this particular application probably wouldn't find commercial success, but that doesn't mean the technology and engineering techniques these people develop wont be of use in other areas. Technology has a fascinating habit of jumping application boundaries.
new hybrids? (Score:2, Interesting)
Re:I really respect these guys (Score:2, Interesting)
Re:Mass production is the real challenge (Score:2, Interesting)
Solar trains (Score:3, Interesting)
s not the future" because the cars are too slow. That may be true.
But what about solar trains? I know that rail systems tend to be designed with as little rolling friction as possible, so that most of the work involved is overcoming intertia. Imagine a train, with solar cells on the roof of each boxcar connected to an electric locomotive on one end or the other. It would start like one of those circus stunts of a guy pulling a rain car with his teeth, i.e. very slowly but the solar cells powering the electric locomotives gradually add some good momentum, and things start moving at a good clip. When night falls, they gradually slow down, and come to a stop for the night.
Imagine that this is continuous, on a homogenous all-solar rail system. Because of the relative uniformity of solar radiation within the medium range, the movement of the various trains on the track will be fairly uniform. Trains should seldom have to brake, and even this braking could be be harnessed, the electric motors used as slow brakes and generators, storing the energy in batteries.
Of course, these trains would be slow. It might take weeks for cargo to get from one end of australia or the US to another. It would also only work where the rail system is pretty flat, unless the aformentioned recovery of inertia can be done with high efficieny and capacity.
It could be useful for commodities that don't have to move fast. Things like ores. Not things like food, which would go bad.
I guess the largest problem with this idea is that it would require a separate rail system, to keep the fast trains from being stuck behind these slow movers. Building such a rail system is expensive.
At least Australia cares about technology... (Score:4, Interesting)
I remember reading about Australia's solar-powered car race back in the 80's in the Smithsonian. Naive child that I was, then, I thought, "Wow! If they're doing that already, it can't be five years until we see them on the streets in the US!"
Now, every time I bring this up, I hear "Aw, you can't drive from 'Frisco to Vegas in a single day in a solar-powered car!", so I'll cut out the middle man: You can keep your gas-guzzler for cross-country runs, industrial/commercial use, and off-road exploring. I'm talking about city-use only with these. The average urban dweller just needs to get around town, for driving times of less than 40 minutes each, on roads with lots of stop-and-go driving and speed limits 45 MPH or less - not counting the freeway (In places like LA, the freeways work out exactly the same, anyway, thanks to traffic!). To and from work, the store, appointments, etc. A hybrid electric-solar urban vehicle could be light (about half the raw materials we currently use), two-passenger (who needs the extra seats when most folks wouldn't car-pool if there were a gun to their heads?), and would only need to store a maximum of three or four hours charge (when was the last time you Big City types had a commute longer than that?). The expensive part comes in upgrading all the parking spaces - installing an outlet in each one. The car could locate the sensor whenever it's parked and automatically plug itself in, whenever it detects that it's low on juice. The cost is offset by the parking meters - which we already have all over the place downtown, anyway.
The heck with the future - we should have started doing this ten years ago! Don't give me the usual Slashdot chant: "Can't happen! Won't work! Impossible!" Apply the freakin' science already! Instead of gas running you several hundred dollars a week, you could pay half that in taxes to fund this project.
Re:Building One (Score:3, Interesting)
Re:Need to use Google Earth (Score:3, Interesting)
http://www.wsc.org.au/2005/on.the.road/map/ [wsc.org.au]
Re:Building One (Score:2, Interesting)