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Hyperloop One: Finishes Test Track And Unveils Proposals for 11 US Routes

Discussion in 'Coffee Shack (Daily News/Economy)' started by Goldhedge, Jul 16, 2017.



  1. Goldhedge

    Goldhedge Modal Operator/Moderator Site Mgr Site Supporter

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    Hyperloop One: Finishes Test Track And Unveils Proposals for 11 US Routes
    [​IMG]
    DominicBertolami

    Apr 20, 2017, 7:11:13 PM

    Hyperloop One has been making great technical progress in the US on the high-speed transportation system. Envisioned by Tesla CEO Elon Musk, the interest for actual deployment of the system has been overwhelming in cities like Dubai.

    The 11 US routes with the most potential have been designed by independent teams through the Hyperloop One Global Challenge announced last year.

    Shervin Pishevar, executive chairman of Hyperloop One, said today about the announcement:

    “The U.S. has always been a global innovation vanguard – driving advancements in computing, communication and media to rail, automobiles and aeronautics. Now, with Hyperloop One, we are on the brink of the first great breakthrough in transportation technology of the 21st century, eliminating the barriers of time and distance and unlocking vast economic opportunities.”
    The completion of the first Hyperloop full-scale test track and the imminent test that will ensue is what the company has been calling the “Kitty Hawk” moment There's been confirmation the installation of a 1640-foot-long tube called DevLoop, located in North Las Vegas.

    Updated photos of the track:

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    [​IMG]


    There are 11 US finalists for the hyperloop routes. The US teams joined 24 other teams from around the globe and out of the 35 total, 3 will be chosen to work directly with Hyperloop One engineering and business development teams to “explore project development and financing.”

    Below are the 11 US citties and their respecitve projected routes.


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    [​IMG]

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  2. brosil

    brosil Gold Member Gold Chaser Site Supporter

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    I sincerely wish them the best of luck.
     
  3. Joe King

    Joe King Gold Member Gold Chaser

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    They will certainly need it.
    ...and then some.
     
  4. Uglytruth

    Uglytruth Gold Member Gold Chaser

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    You should....... your paying for it!
     
  5. Buck

    Buck Fabian Society Gold Chaser

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    Just another one of those:
    Get me from Point A to Point B

    Then what? Bus? Taxi? Skateboard? Uber?

    It may take longer in my truck but it sure smells like my truck is going to save me a bunch of money (the kind I still have possession of, not the tax money already taken from me) Plus I have transportation when I arrive at Point B

    Eloy Musket, what a thief, this guy would be NOTHING without our tax money
     
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  6. nickndfl

    nickndfl Midas Member Midas Member Site Supporter ++

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    Orlando to Miami is a good idea. Orlando could be the hub and go to Tampa or Jacksonville. Miami to Naples to Tampa is a good route too.
     
  7. tom baxter

    tom baxter back from 2004

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    What is it? A pipe they flush people down?
     
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  8. Flight2gold

    Flight2gold Silver Member Silver Miner Site Supporter ++

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    Magnetic levitation then add some low pressure.
    Kinda like water through a hose.
     
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  9. viking

    viking Silver Member Silver Miner

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  10. tom baxter

    tom baxter back from 2004

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    I thought so. Just another dose of hopeium to keep the tech religion moving forward.
     
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  11. Uglytruth

    Uglytruth Gold Member Gold Chaser

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    It's a pipe they flush TAX MONEY down..................
     
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  12. tom baxter

    tom baxter back from 2004

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    lol lol lol. Good one
     
  13. Crockett

    Crockett Seeker

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    Will it work? Who knows, it may just end up in the dust bin of history (per the engineering analysis per the video above), or just maybe they have competent engineers who know the pitfalls and can make it work.

    - Hyperloop will use a partial vacuum system.
    - Hyperloop will still have air resistance. Per concept an electrically driven inlet fan and air compressor would be placed at the nose of the capsule to "actively transfer high pressure air from the front to the rear of the vessel," resolving the problem of air pressure building in front of the vehicle, slowing it down.


    https://www.somethingpossible.com/hyperloop-4.html

    Theory and operation

    Developments in high-speed rail have historically been impeded by the difficulties in managing friction and air resistance, both of which become substantial when vehicles approach high speeds. The vactrain concept theoretically eliminates these obstacles by employing magnetically levitating trains in evacuated (airless) or partly evacuated tubes, allowing for speeds of thousands of miles per hour. However, the high cost of maglev and the difficulty of maintaining a vacuum over large distances has prevented this type of system from ever being built. The Hyperloop resembles a vactrain system but operates at approximately one millibar (100 Pa) of pressure.[24]

    Initial design concept
    The Hyperloop concept operates by sending specially designed "capsules" or "pods" through a continuous steel tube maintained at a partial vacuum. Each capsule floats on a 0.5-to-1.3-millimetre (0.02 to 0.05 in) layer of air provided under pressure to air-caster "skis", similar to how pucks are suspended in an air hockey table, thus avoiding the use of maglev while still allowing for speeds that wheels cannot sustain. Linear induction motors located along the tube would accelerate and decelerate the capsule to the appropriate speed for each section of the tube route. With rolling resistance eliminated and air resistance greatly reduced, the capsules can glide for the bulk of the journey. In the Hyperloop concept, an electrically driven inlet fan and air compressor would be placed at the nose of the capsule to "actively transfer high pressure air from the front to the rear of the vessel," resolving the problem of air pressure building in front of the vehicle, slowing it down.[4] A fraction of the air is shunted to the skis for additional pressure, augmenting that gain passively from lift due to their shape.
     
  14. Crockett

    Crockett Seeker

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    Hyperloop will operate at approximately 1 millibar of pressure


    https://www.metabunk.org/converting-mb-pressure-to-altitude-and-sites-where-this-is-useful.t5265/

    1000 mb is about sea level. The international standard is 1013.2, but "about 1000" is easier to remember.

    300 mb is about 30,000 feet. An easy one to remember, most contrails in temperate areas like the US (excepting Alaska) happen above 30,000 feet, so pressure under 300 mb is generally where contrails will form. However, they can form at higher pressure (lower altitude). The key factor is really temperature.

    250 mb is about 34,000 feet. This is a very typical cruise altitude. It's also the only cruise altitude that earth.nullschool.net gives as an option. It's a little harder to remember than 300/30000, but it's a nice round number for the middle of the cruise altitude range.

    150 mb is about 44,000 feet. This is a useful upper range for possible commercial planes, which will rarely fly about that level.

    100 mb is about 52,000 feet. Pretty much a hard limit for the majority of planes, so you can usually discount any mb that's in two digits

    So, 1 millibar is substantial.

    Edit - Per the Pressure Altitude Calculator the altitude required for 1 millibar of pressure is 106414 ft
     
    Last edited: Jul 17, 2017
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  15. tom baxter

    tom baxter back from 2004

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    I'm sure they could make it work given enough cash, but will it fit into an impoverished future is the question. Musk has a lot of great ideas, the world isn't short on ideas, it's short on capital.
     
    Last edited: Aug 7, 2017
  16. Joe King

    Joe King Gold Member Gold Chaser

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    About 20 miles.

    Yea, the idea of a 1000K long near-vacuum tube that has to be strong enough to resist collapsing due to atmospheric pressure, seems a bit impractical to me.
    Not to mention that if anything happens to allow air to leak from the passenger pod, everyone inside could easily suffocate. It'd be like being in a leaky space capsule. Ie: not where I'd want to be.
    ...and how do you get people out in an emergency? It's not like you could just stop anywhere to open a door on the tube any ol' time you wanted. Atmospheric pressure would blow it apart. It would have to be slowly repressurized, and that'll take time people in an emergency situation may not have.
     
  17. Crockett

    Crockett Seeker

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    According to the Vacuum Conversion Calculator 1 mbar (100 Pa) is equal to
    = .0144 Ib/in2
    = .000987 atm
    = .0987 % vacuum​

    Which according to the Wikipedia vacuum page is a medium vacuum that can be achieved with a single pump, and the pressure is too low to measure with a liquid or mechanical manometer.
     
  18. Crockett

    Crockett Seeker

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    Comment on the above video by Hyperloop one engineer

    Shitpost4lyfes 41 points 11 months ago
    A semi-popular youtuber named thunderfoot has made a few videos in which he claims that the hyperloop will not work. Have you seen the videos, and if so do you have any rebuttals to specific points he made?

    Hyperloopone[S] 100 points 11 months ago
    I've got this one. I have watched the video, and made copious notes. Thunderf00t is a well known youtube science commentator, best known for debunking religious fundamentalists and understanding the surface-maximization of liquid alkali metals, published in Nature last year.

    That aside, both hyperloop videos show a complete reluctance to engage with the real arguments. Sorry, but highlighting some semi-literate comments by your critics does not amount to engaging in a useful discussion. I would like to levitate this video into the sun.

    Here are some specific points and rebuttals: -Thunderf00t primarily makes reference to the Hyperloop alpha whitepaper, written by some SpaceX employees in 2013. I saw no evidence of engagement with subsequent press releases by any of the hyperloop companies. In particular, TF doesn't seem to be aware that there is more than one hyperloop company. FYI, we are Hyperloop One, the company that has raised ~$108 and built the world's most powerful linear motor in 5 months. -Thunderf00t talks a good game about aerodynamics, but shows no evidence of even having read the wikipedia article on choked flow, duct flow, the Kantrowitz limit, or knowing any of the other 'first day on the job' level detail for our aero team. -One of Thunderf00t's technical gotchas was 'expansion joints are difficult', despite the fact that hydraulic cylinders exist, most steel rails are thermally pretensioned, and thermal expansion is probably something we thought of already. -Thunderf00t could have easily looked up our people on LinkedIn, checked their google scholar bona fides, whatever, but seemed more keen on a cheap take down than actually engaging with interesting and ongoing engineering challenges. -One symptom of the level of technical effort that went into TF's video is his careless assumption that 1g = 1m/s/s, as though Hyperloop was being built on some tiny moon of Jupiter. As a fellow academic, I was disappointed by TF's lack of intellectual humility in an area in which he is obviously not an expert. One would wonder why TF would put such hastily produced, easily debunked rubbish on his Patreon feed - people actually pay for that!

    -Casey​
     
  19. Joe King

    Joe King Gold Member Gold Chaser

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    Does it say how big of a pump and is that on a 1000K long vacuum chamber?
     
  20. Alton

    Alton Gold Member Gold Chaser

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    Should have known...all that vacuum let's you know right away that it sucks.
    On another note, congress should be the first passengers...
     
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  21. Buck

    Buck Fabian Society Gold Chaser

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    Reminds me of those vacuum tube systems where the cashiers put their $100 notes into a cylinder, put the cylinder into a tube and push a button, woosh, off it goes to the office

    Can the human body take the acceleration?
    think of a magnetic system on a roller coaster
    Pushes you back into your seat and suddenly, you're at 60MPH
    That's a lot of g force and the system has to do this 10 times to get to 600 MPH
    How many people can handle one maybe two of these acceleration modes?
    But 10?

    Then there's deceleration which will put the bodies innards into a reverse motion
    Can your lungs handle the acceleration/deceleration while remaining attached inside your chest?
    How about your heart?

    I always ask myself: Why?
    It's not your money so Why do you need to ask others for some so you can play?
    It's not like we don't have lots of other types of transportation, and they all work, why is it so important to move faster?
     
  22. Joe King

    Joe King Gold Member Gold Chaser

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    Those are pneumatic tubes, not vacuum tubes.

    They'd certainly have to take that into account, but would it really be much different than take off in an airliner? Top speed is a little faster, but all that means is you accelerate at the same rate, but for a slightly longer duration.

    Bigger problems are curves, including rises and falls in elevation, and how to make an emergency stop in order to get people out of it between stations.
     
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  23. Flight2gold

    Flight2gold Silver Member Silver Miner Site Supporter ++

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    Start rolling down the runway from say 10 knots to Vr, takeoff speed, say ,180 knots, takes approximately a minute and a half.
    Acceleration is no where near anything other than slight push back into your seat.
    I'm sure they don't want anyone to spill their lattés so acceleration speed won't be factor.
     
  24. Joe King

    Joe King Gold Member Gold Chaser

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    What's the minimum radius for making turns at 700mph that won't cause more than .25 G's?
     
  25. tom baxter

    tom baxter back from 2004

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    As the world's highways and railway networks crumble due to lack of maintenance there is a great wish among the public to be saved from the consequences of the energy crisis we have entered. At least from those who even know about it. These futuristic technological dreams give them hope that they will be. Stephen Hawking has said we have one century left to evacuate the planet and become multi-planetary species. Mars is the obvious first choice and Musk is onboard with a futuristic plan to colonize it. This is just more delusion, as if we could make a go of it on an airless sterile planet when we can even make a go of it on one perfectly suited to us? Musk should have stuck to paypal, that actually turned a profit.
     
  26. Ensoniq

    Ensoniq Non-Black Member Midas Member Site Supporter ++

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    Buses, cars, plains = yes
    Trains = sometimes
    and hyper loops ='nay

    It is just not smart to build capital intensive systems with long term payback that lock in the destinations

    I think this is why Dems loves trains. Even if they wreck the place with policies the train still points to them
     
  27. Flight2gold

    Flight2gold Silver Member Silver Miner Site Supporter ++

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    Huge....... radius of 243 miles.
    Any hard turns will be in slow mode.
    Accelerate up to 700 mph only on the straightaway.
     
  28. viking

    viking Silver Member Silver Miner

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    Pretty sure near weightlessness won't be very effective in turning the capsules.
     
  29. Thecrensh

    Thecrensh Gold Member Gold Chaser

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    The first accident will bankrupt the company. Any accidents will be catastrophic for the riders involved - massive deceleration, massive depressurization. Cleanup would involve sponges and buckets.
     
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  30. Thecrensh

    Thecrensh Gold Member Gold Chaser

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    The first accident will bankrupt the company. Any accidents will be catastrophic for the riders involved - massive deceleration, massive depressurization. Cleanup would involve sponges and buckets.
     
  31. Joe King

    Joe King Gold Member Gold Chaser

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    Don't forget the fire hose. They'll need one of those too. lol

    Yep, A breach in the tube would allow air to come rushing in at approx the speed of sound. What happens when that incoming air hits a pod going the other way at 700mph? (or even one at a dead stop, for that matter) It go splat!
    ...and you just know that it would be a tempting target for the stupid terrorists.

    A much better option would be mag-lev. The theoretical top speed for that is 1400mph. That'd make a SF-LA run in 15 minutes without any of the problems associated with trying to put it inside a vacuum tube.
     
  32. Uglytruth

    Uglytruth Gold Member Gold Chaser

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    Gotta think like you are on gov dole...... can't use anything that is proven as it don't cost enough or futuristic.
     
  33. oldgaranddad

    oldgaranddad Gold Member Gold Chaser Site Supporter ++

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    Supposedly the Hyper-Loop route between NYC and DC is a surprise to the on the take politicians in NYC. I guess Musk forgot to tell them where the paper bag full of money was.

    http://www.zerohedge.com/news/2017-...asted-after-elon-musks-most-bizarre-claim-yet

    Having dealt with the MTA I actually could see them admitting not knowing who Elon Musk was, though I must admit this is probably an under-handed swipe at Musk, and his ego.
     
  34. Cigarlover

    Cigarlover Gold Member Gold Chaser

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    Eventually we will have one of these to go cross country at the fastest rate of acceleration possible.
    I'll admit I am not smart enough to do the calculations but I imagine we will accelerate at whatever rate is comfortable and keep accelerating until they have to start slowing to a stop at whatever rate is comfortable.
    So maybe NY to LA in 20 minutes.
     
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  35. Thecrensh

    Thecrensh Gold Member Gold Chaser

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    All the challenges and potential issues notwithstanding, I hope this thing takes off.
     
  36. spinalcracker

    spinalcracker On a mail train. Silver Miner Site Supporter

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    Citizens , hear me out!
    Never forget Charlie!...
    This could happen to you!.....

     
  37. southfork

    southfork Mother Lode Found Mother Lode

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    In reality they are bankrupt already, havent shown a profit since formed and wont, they live off taxpayers money and shareholder dilution, time will come tsla will be a 0001 stock.
     
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  38. Buck

    Buck Fabian Society Gold Chaser

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    How long is 500m?

    to get a "car" to 192mph in 500 m seems reasonable but we need to stop the "car" inside the claimed 500m, don't we?

    How's that possible?

    Unless these folks just shot the "car" out the other end of the tube, how's this possible?

    Next Q:
    What are the results on a human body to accelerate and decelerate to 192mph inside 500m?

    There are videos of the guy who went to 452mph IIRC on a rocket sled and he was bed ridden for quite some time after that ride due to internal bruising of his vital organs

    The story really is weak on news and USA is supposed to be full of news journalists

    Who wants to invest?
    You and me and all the other taxpayer suckers who are being fleeced by these folks?

    IDK

    There's something wrong with this story, really wrong

    oh yeah, and since when is pressure based upon the "ground"?

    http://www.msn.com/en-us/news/techn...-192-mph-in-test/ar-AApjtgA?OCID=ansmsnnews11
     
  39. searcher

    searcher Mother Lode Found Site Supporter ++ Mother Lode

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  40. southfork

    southfork Mother Lode Found Mother Lode

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    Amtrak is sucking taxpayers dry, Musk wants more TP money too, how TSLA trades at 349 and not 3.49 is beyond reality
     
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