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Australia working on infinity electric train

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Australia working on infinity electric train

Old 5th Mar 2022, 13:32
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Australia working on infinity electric train

How clever is this, a battery powered train that charges itself on the downhill loaded trip and uses it on the uphill empty return, so never needs external power.

https://newatlas.com/transport/forte...rain-electric/


So essentially, while details are scant at this point, it seems what's happening here is that for one or more of Fortescue's mining sites, the team has calculated that there's enough downhill slope and braking opportunities in the loaded direction to charge up the battery regeneratively, and the train is so much lighter when it's unloaded that the battery can take it all the way back to the mine and start the journey again without needing a charge.
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Old 5th Mar 2022, 15:00
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A rather inefficient way of using the potential energy of the mass of ore at the top of the hill. I had a toy 70+ years ago; if you filled a hopper at the top with sand a weight round a pulley towed the cart up a track to the top where it pushed the hopper outlet open. When heavier than the weight it ren down the slope until the dump was triggered. Same principle. I wonder what the battery cost & replacement intrval is.
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Old 5th Mar 2022, 15:39
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Similar truck already in use..

https://www.greencarreports.com/news...o-be-recharged
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Old 5th Mar 2022, 16:19
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And have a look at the Lynton Cliff Railway as well - all done with water. On new underground railways we seek to put platforms on underground "hills" with uphill gradients on arrival and downhill on departure so using gravity to assist braking and acceleration. And I did some work a few years ago that assessed the savings derived through regenerative braking at about 18%
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Old 5th Mar 2022, 16:24
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Originally Posted by Fitter2 View Post
A rather inefficient way of using the potential energy of the mass of ore at the top of the hill. I had a toy 70+ years ago; if you filled a hopper at the top with sand a weight round a pulley towed the cart up a track to the top where it pushed the hopper outlet open. When heavier than the weight it ren down the slope until the dump was triggered. Same principle. I wonder what the battery cost & replacement intrval is.
Old idea re-engineered, probably easier to get to work using electricity than an extremely long cable, You can use power to overcome the inertia of the load to start it rolling too.
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Old 5th Mar 2022, 16:26
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This will slow down the earth's rotation...

At least in the southern hemisphere
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Old 5th Mar 2022, 16:27
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Originally Posted by Wetstart Dryrun View Post
This will slow down the earth's rotation...

At least in the southern hemisphere
OMG! Will it come unscrewed?
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Old 5th Mar 2022, 16:35
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The old fashioned cable solution still wastes energy controlling the speed the load, Regenerative braking saves wear and recovers energy. We have a long descent into a nearby town, if I set my cruise to 50 mph anddial the speed down to 30 mph to meet the limit, the range in my battery goes up by a mile and my brakes are unused. This is just a giant example of the same principle.
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Old 5th Mar 2022, 19:03
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Originally Posted by Ninthace View Post
OMG! Will it come unscrewed?
Relax, it wont happen as the northern hemisphere is always screwing up.
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Old 5th Mar 2022, 19:14
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Originally Posted by Fitter2 View Post
A rather inefficient way of using the potential energy of the mass of ore at the top of the hill. I had a toy 70+ years ago; if you filled a hopper at the top with sand a weight round a pulley towed the cart up a track to the top where it pushed the hopper outlet open. When heavier than the weight it ren down the slope until the dump was triggered. Same principle. I wonder what the battery cost & replacement intrval is.
One slight flaw in that idea, itís a single track.
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Old 5th Mar 2022, 19:56
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Originally Posted by Ninthace View Post
OMG! Will it come unscrewed?
Can I be on the side that the Russians arenít?
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Old 5th Mar 2022, 20:50
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Very traditional way to move minerals down a mountain. Victorian era in Wales had a number with cable haulage of railway wagons, filled with slate at the top, the descending train pulled the previous, now empty wagons back up on the next track, the cable going round a large pulley wheel at the top. Mother Nature has of course provided the single use potential energy. It even featured in the Reverend Awdry's Thomas the Tank Engine books, where the Naughty Trucks with grimaced faces tried to break away down the hill ...
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Old 5th Mar 2022, 23:33
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My science master mentioned this in 1953:


https://www.sciencedirect.com/topics...eering/gyrobus
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Old 6th Mar 2022, 03:55
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The Ffestiniog railway was built nearly 200 years ago on a continuous downhill grade for 13 miles to carry slate to Portmadoc. The return trip the carts were pulled by horses. Not quite infinity but I'd take the horses over batteries. Must have been quite a ride.
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Old 6th Mar 2022, 05:33
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Isn't there a danger of regenerative braking contributing to increased global warming..?
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Old 6th Mar 2022, 07:43
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Yes, by the people who think it does getting all wound up about it...
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Old 6th Mar 2022, 07:57
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Instead of a battery pack, why not capture the power generated going downhill and feed it onto a duplicate track for the train going uphill.
Any excess could be stored in a pumped hydro in an unused mine pit.
Sure it will require the building of a duplicate track.
That would give employment to the steel mills in Oz instead of using child labour digging for the rare earths and minerals used in the batteries.
Batteries will need replacing every so many cycles. Rail lines last centuries.
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Old 6th Mar 2022, 08:18
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Batteries are just sooo Tesla. A simple looped steel cable (made by BHP) attached to both uphill and downhill travelling trains will neutralise any need for batteries. Commuters will be able use their feet for movement as per Fred Flinstone.
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Old 6th Mar 2022, 08:20
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Cable worked inclines were often single track with a passing loop halfway up.
The old 1500v DC Woodhead route accross the pennines used regenerative braking and feed energy into the overhead wires so trains going up hill could use it.
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Old 6th Mar 2022, 09:43
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What's this nonsence about infinte trains. The State of Victora in Australia has Vline, which already has ininity trains. They are delayed infinitely on any day ending in a y. Just ask onyone who uses them on a regular basis.
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