maglev: can trains defy physics?
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DESCRIPTIONCan trains defy physics? Can a train stick to a track yet, somehow, fly above it? Can a train go slower than an aircraft yet, somehow, get you to your destination faster? Are the laws of physics really just general guidelines? This presentation discusses Maglev technology, and whether it will be the future.
- 1. CAN TRAINSDEFY PHYSICS?
- 2. CAN TRAINSDEFY PHYSICS?Can a train stick to a track yet, somehow, fly above it? Can a train go slowerthan an aircraft yet, somehow, get you to your destination faster? Are thelaws of physics really just general guidelines? And can we beat them? Letsstart by answering a question
- 3. ARE PLANES FASTERFOR LONG DISTANCE?say, Mumbai-Jaipur (1,182km) or Mumbai-Delhi (1,449km)
- 4. ARE PLANES FASTERFOR LONG DISTANCE?say, Mumbai-Jaipur (1,182km) or Mumbai-Delhi (1,449km)A Mumbai-Delhi train generally takes 2 hours in flight. Add to that the 1-hrearly reporting time and time spent in related activities. It works out to morethan three hours. How about a train that can get you there in lesser time?What would such a train look like? Heres a hint
- 5. We have dreamed of technology like a hoverboard. But we dont have it so far. NOImage (Hoverboard): http://www.wired.com/images_blogs/gadgetlab/Hoverboard%201.png
- 6. Nor do we have the flying car, oft cited in science fiction books and movies. NO NOImage (hover car): http://somekillerstories.com/wp-content/uploads/2012/06/audi-calamaro-concept-flying-car-2.jpg?9d7bd4
- 7. Yet one morning a person woke up, and probably said: Forget boards and cars lets make trains fly. - Prof. Eric Laithwaite Late 1940s (Not a real quotation)
- 8. And today, we already have such trains. Hover trains? A cross between a train and a plane! NO NO YES!Image (flying train): http://blog.gamesdaypodcast.com/wp-content/uploads/2011/10/ss_1ea1e08f369544ea58c763d4f3d0a0485037ee8c.jpg
- 9. SO HOW DOES ATRAIN DEFY PHYSICS?
- 10. STEP 1 DUMP CONVENTIONAL WISDOM Forget everything you know about a train. How it works, what components it is supposed to have, everything.Image: http://i.bnet.com/blogs/central-japan-railway-yamanashi-maglev-test-track.jpg
- 11. STEP 2DUMP THE WHEELS
- 12. STEP 2 DUMP THE WHEELS In the place of wheels we use powerful electro- magnets that can make the train literally float in thin air. They can do this in three ways. Of these, the second in the picture is the most common.Image: http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Adam_Caswell/mag%20lev%20diagram.gif
- 13. STEP 3DUMP THE ENGINE
- 14. STEP 3DUMP THE ENGINESuch a train doesnt need aconventional engine. Thepropulsion system is in thetracks. The tracks feature aseries of magnets whosepolarity changes rapidly.Some magnets on the trainrepel those on the trackwhile some attract, pullingthe train forward.Image: http://en.wikipedia.org/wiki/File:Maglev_Propulsion.svg
- 15. SUCH A TRAIN IS CALLEDMAGLEV.
- 16. SO DOES A PHYSICS DEFYINGTRAIN HAVE ADVANTAGES?
- 17. SO DOES A PHYSICS DEFYINGTRAIN HAVE ADVANTAGES?answer: it does.
- 18. 1. SPEEDFastest car: 429 km/h (Bugatti Veyron Super Sport)Fastest wheeled train: 574 km/h (V150, France)Maglev: 581 km/h (MLX01, Japan)Boeing 787: 950 km/hBut the real kicker is while the V150 required a total tracklength of 149.7 km to complete its record setting run, theMaglev train did it in 18.4 km.
- 19. 2. EFFICIENCYCost of running a:Car: 59.6 cents/miAirplane: 13 cents/miMaglev: 4 cents/miMaglev is 200% more efficient than airplanes!Sources: http://newsroom.aaa.com/2012/04/cost-of-owning-and-operating-vehicle-in-u-s-increased-1-9-percent-according-to-aaa%E2%80%99s-2012-%E2%80%98your-driving-costs%E2%80%99-study/http://www.maglev2000.com/works/how-08.html#Question1
- 20. 3. NOISE23% less noise than HSR at the same speed!Source: http://www.seas.upenn.edu/~vuchic/maglev-debate.pdf
- 21. 4. LOW MAINTENANCE5. MORE COMFORTABLE6. ALL WEATHER7. STEEPER CLIMBS
- 22. BUT THERE ARE, OFCOURSE, DOWNSIDES
- 23. 1. COST OFCONSTRUCTIONAirplane: $0/kmHSR: $12.9mn/kmMaglev: $43.6mn/kmMaglev costs 3.38x HSR cost
- 24. 2. PSYCHOACOUSTICNATURE OF NOISE3. LACK OF BACKWARDCOMPATIBILITY4. FEAR OF RADIATION
- 25. IMPLEMENTATIONSOF MAGLEV
- 26. Japan MAGLEV China currently runs in South Korea USA Australia Malaysiais being considered in UK Iran Venezuela India
- 27. MAYBE SOMEDAY INDIAWILL DEFY PHYSICS
- 28. GET IN TOUCHVezance XocobsE: email@example.comT: @vezance
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