Search found 34 matches

by Q2021
30. Oct 2021, 11:30
Forum: Hyperloop concepts
Topic: Just curious - a wheeled train through the tube
Replies: 0
Views: 79

Just curious - a wheeled train through the tube

Hi all, What would the comparison look like - a maglev train(or pods) versus a wheeled electric train(or pods) moving through the tube. To keep things equal let's consider - trains of same weight(possible?), same seating capacity, same speed (whatever max wheeled ones have achieved - guess, 357 mph ...
by Q2021
26. Oct 2021, 20:54
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev versus Air travel between any two end points?
Replies: 3
Views: 168

Re: Maglev versus Air travel between any two end points?

Nice jok, but besides the point of connecting city centers, how about distance? Do we have any thumb rule like for x km both are nearly equal or maglev is better. Better in what sense? Well, may be how much time it takes a passenger gate to gate (time of entry and time of exit), cost of travel, inci...
by Q2021
23. Oct 2021, 09:59
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev versus Air travel between any two end points?
Replies: 3
Views: 168

Maglev versus Air travel between any two end points?

Hi all,

What could be the factors that can make Maglev look more attractive compared to airports and air travel between two end points?

One important factor in current situation is electrical versus fossil/liquid fuel. What else would you consider very important?
by Q2021
22. Oct 2021, 22:06
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev - Frequent stoppages(intra city) versus non-stop long distance travel
Replies: 0
Views: 80

Maglev - Frequent stoppages(intra city) versus non-stop long distance travel

Hi all, With frequent stoppages as required in public transport services within cities, is use of maglev technology really beneficial? One of its biggest advantages is speed which loses its significance to a good extent. Agree? So what minimum distance would you consider useful for best benefit from...
by Q2021
20. Oct 2021, 09:13
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev Propulsion Technology for Ship Propulsion?
Replies: 0
Views: 81

Maglev Propulsion Technology for Ship Propulsion?

Hi all, Do you foresee "any" scope for use of maglev for ship propulsion? The track can be replaced by underwater nuclear power small sized submarines which do two things - move forward and generate the magnetic field similar to that in the train track. Changes on the underside of the ship...
by Q2021
13. Oct 2021, 16:39
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev for flying cars?
Replies: 6
Views: 274

Re: Maglev for flying cars?

Well, I think you are not missing anything based on what I wrote. I am also still assessing my views on the alternatives that are being pursued(futuristic and sustainable transport - flying cars too), and their pros and cons. But somehow I think these cars, or similar ones dedicated to intercity tra...
by Q2021
10. Oct 2021, 12:29
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev for flying cars?
Replies: 6
Views: 274

Re: Maglev for flying cars?

Won't the forces be only as much as they are without maglev, like in the shared video?
by Q2021
10. Oct 2021, 12:26
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Smaller version of Maglev - viable?
Replies: 0
Views: 91

Smaller version of Maglev - viable?

Hi all,

Is a smaller version of maglev viable - single or double seater pods(double - one behind the other) and maybe with see through top covers(?), narrower track(enough for one seater pod), and distance of 10-30 km, for travel within a city, and maybe even 1-2 km(like adventure sports?).
by Q2021
4. Oct 2021, 11:40
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev for flying cars?
Replies: 6
Views: 274

Re: Maglev for flying cars?

similar to that for an aircraft - at least take-off.
by Q2021
2. Oct 2021, 17:33
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev for flying cars?
Replies: 6
Views: 274

Maglev for flying cars?

Hi all,

Can maglev technology be useful for flying cars?

Ref: https://www.youtube.com/watch?v=a2tDOYkFCYo
by Q2021
25. Sep 2021, 17:28
Forum: Hyperloop concepts
Topic: Outside view - in pods. Should be very easy, useful?
Replies: 4
Views: 256

Re: Outside view - in pods. Should be very easy, useful?

Hi Eurorapid, Thanks for sharing your views, and I too understand many of the problems and challenges. So, I do agree with much of what you wrote, but hope you agree that time and again we encounter phases of high uncertainty in scientific pursuits. Besides, so many learned people have committed the...
by Q2021
23. Sep 2021, 20:16
Forum: Hyperloop concepts
Topic: Outside view - in pods. Should be very easy, useful?
Replies: 4
Views: 256

Outside view - in pods. Should be very easy, useful?

Hi all,

Just to give that feel of a train, would it be useful to connect outside view, cameras fixed on the tube, e.g. one per km, with display screen inside the pods, which can display videos from one or more cameras, around a pod's location?
by Q2021
23. Sep 2021, 19:53
Forum: Hyperloop concepts
Topic: Pods - hanging versus bottom levitation - pros and cons
Replies: 0
Views: 88

Pods - hanging versus bottom levitation - pros and cons

Hi all,

I guess these pods are hanging from the top side - https://hardt.global/.

So what are the pros and cons - levitation from top versus that from bottom?
by Q2021
19. Sep 2021, 10:44
Forum: Hyperloop concepts
Topic: Tube - Steel (why not RCC?)
Replies: 0
Views: 2675

Tube - Steel (why not RCC?)

Hi all, So, why RCC/reinforced concrete(PS) is not of interest as MOC for the tube? Also, can 3D printing help improve the acceptability of reinforced concrete? RCC might also have better strength in compression (external pressure, vacuum inside). If accidental debris is a possible concern, a thinne...
by Q2021
17. Sep 2021, 20:54
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Hydrogen or LNG for propulsion of maglev trains - unviable?
Replies: 0
Views: 1830

Hydrogen or LNG for propulsion of maglev trains - unviable?

Hi all, The reference below is for a hydrogen powered train. There may be others too. I wonder whether it is viable for maglev trains. I guess, pods in hyperloop will have many more issues than an open air maglev! Thanks. PS: https://www.alstom.com/sites/alstom.com/files/2021/01/25/20210125_PR_Europ...
by Q2021
15. Sep 2021, 10:37
Forum: Hyperloop concepts
Topic: Pods - powered by batteries. Any alternatives?
Replies: 3
Views: 1422

Re: Pods - powered by batteries. Any alternatives?

So, fuel cell is also not a safe enough option, as yet?
by Q2021
15. Sep 2021, 10:35
Forum: Hyperloop concepts
Topic: Power and energy requirement of a pod - peak and, say, kwh per 1000 km.
Replies: 4
Views: 1540

Re: Power and energy requirement of a pod - peak and, say, kwh per 1000 km.

Thanks IMB. Shall check soon. Besides, please share if any opinion is possible on use of combustion based systems for propulsion for maglev trains (a reference in the PS). PS: Gas turbines- https://assets.siemens-energy.com/siemens/assets/api/uuid:b86b3850-ef42-4c8d-a040-15866aa95f02/gas-turbines-si...
by Q2021
14. Sep 2021, 21:58
Forum: Hyperloop concepts
Topic: Power and energy requirement of a pod - peak and, say, kwh per 1000 km.
Replies: 4
Views: 1540

Re: Power and energy requirement of a pod - peak and, say, kwh per 1000 km.

Hi Eurorapid! So, any idea what are the numbers for maglev, just in case you may have them? Do you think it can use a combustion based propulsion system? On speed of pods - wonder why you call it strange. I mean, do you foresee any problems or "not yet" hints at any problematic issues, unk...
by Q2021
14. Sep 2021, 19:34
Forum: Hyperloop concepts
Topic: Power and energy requirement of a pod - peak and, say, kwh per 1000 km.
Replies: 4
Views: 1540

Power and energy requirement of a pod - peak and, say, kwh per 1000 km.

Hi all, Just curious how much power and energy does a pod need - peak(kw), and kwh/1000 km? I understand that we need vacuum but is there any scope of using propulsion system similar to rockets, if not for passenger maybe for freight. Sure, there may be many problems with it. How much we need to car...
by Q2021
14. Sep 2021, 19:16
Forum: Hyperloop concepts
Topic: Pods - powered by batteries. Any alternatives?
Replies: 3
Views: 1422

Re: Pods - powered by batteries. Any alternatives?

Thanks again jok.

Best regards.
by Q2021
14. Sep 2021, 18:17
Forum: Hyperloop concepts
Topic: Pods - air or enriched oxygen?
Replies: 0
Views: 1831

Pods - air or enriched oxygen?

Hi all,

Inside pods, what pros and cons do you foresee for air versus enriched oxygen ambience?

Thanks.
by Q2021
14. Sep 2021, 18:12
Forum: Hyperloop concepts
Topic: Pods - powered by batteries. Any alternatives?
Replies: 3
Views: 1422

Pods - powered by batteries. Any alternatives?

Hi all,

Are batteries the only and safest option for pods? Any possibility of a fire hazard, especially with, I guess, limited oxygen available? Not possible to generate power on board by any means, maybe by use of the external magnetic field?

Thanks.
by Q2021
14. Sep 2021, 16:35
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev technology for aircrafts - any possibility?
Replies: 7
Views: 1720

Re: Maglev technology for aircrafts - any possibility?

Thanks jok! So, it should be viable for land based aircrafts also - small passenger ones and jet fighters? Could you also indicate any pros and cons versus current system.

Best regards.
by Q2021
14. Sep 2021, 15:19
Forum: Hyperloop concepts
Topic: Hyperloop - pod design and dimensions - significant effect on tube sizing?
Replies: 2
Views: 1308

Re: Hyperloop - pod design and dimensions - significant effect on tube sizing?

Thanks and best regards jok! shall think further about that point.
by Q2021
14. Sep 2021, 07:43
Forum: Hyperloop concepts
Topic: Hyperloop - pod design and dimensions - significant effect on tube sizing?
Replies: 2
Views: 1308

Hyperloop - pod design and dimensions - significant effect on tube sizing?

Hi all, Since Hyperloop will operate in a vacuum, is it not better if capsule is designed longer instead of two or more seats in a row - essentially one seat behind the other with a few in series, still in a single capsule. Each seat may also be like a bed, people can lie, nearly, instead of sitting...
by Q2021
13. Sep 2021, 19:42
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev for intercity goods transport
Replies: 2
Views: 1326

Maglev for intercity goods transport

Hi all,

Is there any possibility that goods transport can use a maglev highway, say for inter city transport - source and destination hubs. Rest, within city, by trucks.

Thanks.
by Q2021
13. Sep 2021, 18:52
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Air friction reduction - latest research on surface coatings?
Replies: 4
Views: 1385

Air friction reduction - latest research on surface coatings?

Hi all,

I wonder what is the state of the art technology for surface coatings that can make drastic reduction in air friction in maglev trains? What is the future potential of such research?

Thanks.
by Q2021
13. Sep 2021, 18:16
Forum: Fundamental issues relating to mobility, transport and Maglev
Topic: Maglev technology for aircrafts - any possibility?
Replies: 7
Views: 1720

Maglev technology for aircrafts - any possibility?

Hi all, Firstly, I am not from America but I had to choose the default to register. Please excuse for that. My query - Is there any possibility that maglev technology can be used for aircrafts, at least taking off, and for small aircrafts? If yes, what are the pros and cons? Thanks! PS: https://spec...