mitch672
Active Member
New article comparing Elons Hyperloop with a 1972 RAND report about VHST: What Is Elon Musk's Hyperloop - Business Insider
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Hyperloop
- Thread starter gg_got_a_tesla
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mitch672
Active Member
Actually he travels from San Fransiso to LA all the time, many problems he looks for solutions for personally affect him, that's why he'd like to propose a trial Hyperloop between San Francisco and LA, as opposed to the worlds slowest, most expensive per mile bullet train.
mitch672
Active Member
That is hilarious, but I think the Hyperloop will be much more complex, as carrying humans safely is a bit more difficult than transporting Buritos
Interesting, but political upstart issues aside, also sounds sort of dangerous. Can you imagine a collision at those speeds underground? Becomes a tomb
deonb
Active Member
Interesting, but political upstart issues aside, also sounds sort of dangerous. Can you imagine a collision at those speeds underground? Becomes a tomb
What is there to collide with? It's inside a sealed tube.
Collisions should be as "designed out" as possible/feasible for example:
- completely enclosed tube berried under ground
- one-way tubes
- low air pressure in tubes -> enables 'simple' alarm raising -> too much air resistance (from stopped object in front, damaged tube, ...) => automatic stop; build up of air pressure acts like a passive brake
- lack of air makes such tubes unbreathable so they wont be "interesting" for general public to wander in
- if anything happens they can be swiftly pressurized just by opening vents
- tubes need not be berried very deep, just under surface
- completely enclosed tube berried under ground
- one-way tubes
- low air pressure in tubes -> enables 'simple' alarm raising -> too much air resistance (from stopped object in front, damaged tube, ...) => automatic stop; build up of air pressure acts like a passive brake
- lack of air makes such tubes unbreathable so they wont be "interesting" for general public to wander in
- if anything happens they can be swiftly pressurized just by opening vents
- tubes need not be berried very deep, just under surface
There's going to be one "car" per tube? What happens when one breaks down? At that rate of speed can one behind it stop soon enough? What about a crack in the tunnel? Water coming in? All speculation of course since I have no details, but it's the first thing that came to mind.
I seriously doubt there would be any underground tunnels involved, since it's usually cost prohibitive. I think Elon's a fan of elevated guideways - he's suggested elevated highway lanes and some sort of personal rapid transit installed on central dividers. Judging by the air hockey analogy, I'd expect he's thinking of some sort of ground effect train (concorde reference would imply the winged variety) and linear motors for propulsion (railgun reference).
Looking for elevated trains over streets led to this:
Smart grid leads to more efficient electric trains
Smart grid leads to more efficient electric trains
BriansTesla
Old school meets new tech
I this is a fantastic idea and I think the Federal Government should fund a study on the feasibility of the "VHST-Hyperloop"
On second thought, we should encourage Elon to start a new company. He doesn't need Government help.
I would by some stock today!
BriansTesla
Old school meets new tech
I was thinking that for the majority of the distance across the country you would not have to tunnel but only bury the tube from 10 to 40 feet under the surface subject to terrain.
A few thoughts regarding this:
-Why not a pipeline?
-If there is a threshold where it is not useful to waste energy to propel eg. a maglev train through air, why would vacuum be the only option? It assumes that the air is not moving, but what if it did?
-How to make the air move? Well, imagine a pipeline that is covered in photovoltaic cells, and pylons containing fans. Fans are powered by the photovoltaic cells, obviously, and are sucking in air to power one huge Dyson fan http://www.howstuffworks.com/gadgets/home/dyson-bladeless-fan.htm per pylon.
I have attached an image:
This way, the vehicle can have a very high ground speed, while still maintaining a low, or zero, airspeed. At some point it is no longer fruitful to accelerate the air in the pipeline because of friction. Vehicle could be either magnet-lifted or some type of ground-effect vehicle.
-Why not a pipeline?
-If there is a threshold where it is not useful to waste energy to propel eg. a maglev train through air, why would vacuum be the only option? It assumes that the air is not moving, but what if it did?
-How to make the air move? Well, imagine a pipeline that is covered in photovoltaic cells, and pylons containing fans. Fans are powered by the photovoltaic cells, obviously, and are sucking in air to power one huge Dyson fan http://www.howstuffworks.com/gadgets/home/dyson-bladeless-fan.htm per pylon.
I have attached an image:
This way, the vehicle can have a very high ground speed, while still maintaining a low, or zero, airspeed. At some point it is no longer fruitful to accelerate the air in the pipeline because of friction. Vehicle could be either magnet-lifted or some type of ground-effect vehicle.
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If anyone can push the Hyperloop forward it's Elon, but, having lived 20+ years in NYC and still not seeing the 2nd Avenue subway come to fruition (was started long before I moved there) - not sure public funding will be the answer. That's the general argument (regardless of the tech required) that's posed by the Atlantic Wire:
Elon Musks Just Fine - Dashiell Bennett - The Atlantic Wire
I mean they can't even fix the 405 (another one of Elon's gripes), so something like Hyperloop has got to be funded privately, I'm just hoping Elon has a plan for this...
Elon Musks Just Fine - Dashiell Bennett - The Atlantic Wire
I mean they can't even fix the 405 (another one of Elon's gripes), so something like Hyperloop has got to be funded privately, I'm just hoping Elon has a plan for this...
I would like to see this idea 'derail' the plan for the California High speed train which is scheduled to begin construction LA to San Francisco, and begin a link to Las Vegas. This makes much more sense than trains.
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