Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-05-2017, 03:44 PM   #1 (permalink)
PSmodder lurker
 
Join Date: Jan 2009
Location: Chino
Posts: 1,605
Thanks: 26
Thanked 908 Times in 522 Posts
Elon has a huge Hyperloop rival

China Aerospace Science and Industry Corporation has plans to start working on a high-speed flying planetrain that would reach speeds of 4,000 km or 2,500 miles per hour, three times the speed of sound! It will use magnetic levitation in a vacuum tube system. Obviously an offshoot of Elon Musk's Hyperloop, the ambitious Chinese system will have three different speeds and distance stages; planetrains that can run up to 620 mph among Chinese regional cities, 1,250 mph among large megalopolises and 2,500 mph travel between different countries along the Chinese global initiative, Silk Road Economic Belt '21st Maritime Silk Road' or BRI.


  Reply With Quote
The Following User Says Thank You to botsapper For This Useful Post:
Xist (09-05-2017)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-05-2017, 03:52 PM   #2 (permalink)
EcoModding flying lizard
 
Daschicken's Avatar
 
Join Date: May 2012
Location: Georgia
Posts: 742

Cibbie - '88 Honda CBR 250R
Motorcycle
90 day: 48.49 mpg (US)

Rarity - '06 Honda Accord EX V6
Team Honda
90 day: 29.88 mpg (US)

Baby viff - '86 Honda VFR 400R
Motorcycle
90 day: 42.15 mpg (US)

Latios - '08 Suzuki SV650SF
Motorcycle
90 day: 64.56 mpg (US)

Mazda 3 - '14 Mazda 3 i Sport
90 day: 43.25 mpg (US)
Thanks: 618
Thanked 261 Times in 174 Posts
I hope they are more successful than the hyperloop, it seems making a giant vacuum chamber is not that easy.
__________________
-Kaze o tatakaimasen-

Best trip in V6: 52.0
Best tank in V6: 46.0
Best tank in Mazda: 49.9
Best tank in CBR: 61.3
Best tank in SV: 83.9

Quote:
Originally Posted by MetroMPG View Post
You can lead a fashion-conscious horse to unusual-looking water...

  Reply With Quote
Old 09-05-2017, 05:03 PM   #3 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 35.79 mpg (US)
Thanks: 7,217
Thanked 2,217 Times in 1,708 Posts
In theory, you don't need the trains, but that is only suitable for bureaucrats!



[Does that image show up for anyone?]
  Reply With Quote
Old 09-07-2017, 01:05 PM   #4 (permalink)
Master EcoModder
 
Join Date: Aug 2010
Location: Philippines
Posts: 2,173
Thanks: 1,739
Thanked 589 Times in 401 Posts
Good luck if they're relying on the silk road to get these rolling.

After what's happened with Sri Lanka, many neighbors are (rightfully) wary of Chinese loans and offers of assistance.
  Reply With Quote
Old 09-10-2017, 03:56 PM   #5 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
At 2500mph the inside of the tube better be built to optical-level tolerances.
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
Xist (09-11-2017)
Old 09-10-2017, 04:47 PM   #6 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
Quote:
Originally Posted by freebeard View Post
At 2500mph the inside of the tube better be built to optical-level tolerances.
It can't be and does not need to be.
The ground may not be 100% stable; then the tube will move. But even if it gets bored through solid rock then variances in tectonic stress and heat will cause slight deviations that would shake the capsule to bits at Mach 2.

All the tube needs is an automatically adjustable girder system to compensate for the deviations and some extra space to allow for those adjustments.

I think the hyperloop system is viable; not in the West or China, but on the moon, if we ever get a large human presence there.
Moon bases need to be built in tunnels: away from cosmic radiation, extremes in heat and cold and super abrasive moon dust.

A hyperloop at over mach 2 could even be used as a launch system on the moon, throwing materials from the moon into space at very low cost.
if we want to explore the wider solar system and beyond we should seriously consider a moon base with factories and hyperloop launcher as a stepping stone.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Old 09-11-2017, 12:22 AM   #7 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Quote:
All the tube needs is an automatically adjustable girder system to compensate for the deviations and some extra space to allow for those adjustments.
A rigid but flexible tube? 2500mph is 3666ft/sec. Changes in grade or curves would be problematic.

The Moon would be the place for a space elevator. No atmospheric drag, or terrorists.

The earliest mention I remember of underground tunnels had them on a catenary curve. Instead of mag-lev, you were to just drop them straight down the hole and let gravity do the work.
  Reply With Quote
Old 09-11-2017, 12:59 AM   #8 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 35.79 mpg (US)
Thanks: 7,217
Thanked 2,217 Times in 1,708 Posts
If you hollowed out the Moon and fired a proton torpedo into an exhaust port, if there is an equal and opposite shaft on the opposite side, and no obstructions, would the torpedo travel through the Moon, or be pulled back in at some point, again and again, until it loses inertia?
  Reply With Quote
Old 09-11-2017, 02:09 AM   #9 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,396

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 4,192
Thanked 4,380 Times in 3,354 Posts
It should gain speed until passing the mid-point, and then begin slowing until reaching the other side, and then reverse direction over and over again until the minuscule particles slow the object over time.

Speaking of accelerating objects on the surface of the moon, at a certain speed the surface of the moon would be falling away from the accelerated object faster than the low gravity keep it anchored to the surface. It would be neat to accelerate an object and provide a means of keeping it tethered to the surface, and then release it like a slingshot, allowing it to break free of the moons gravity.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 09-11-2017, 02:41 AM   #10 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
One could still travel faster than the 2.38 kilometer per second lunar escape velocity in a hyperloop over the moon's surface but the seats need to be upside down...

The moon is almost 4 times as small as the earth so the largest distance over the surface would be just over 5000 km or 3000 miles. With a lunar escape velocity++ hyperloop one could literally work on one end of the moon and live on the direct opposing point and still have a reasonable commute. Just to get away from the hustle and bustle of the workplace.

__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com