| General > General Technical Chat |
| The Hyperloop: BUSTED |
| << < (66/113) > >> |
| wraper:
--- Quote from: amspire on January 20, 2018, 12:21:02 pm ---Let's say they can travel at 1000km/h. The tubes have to be safe. There has to be a safe distance between tubes so a crash in the Up tube can't take out the Down tube. A safe separation may be 100 meters. That is not the worst part. It has to be safe for people in the proximity of the tunnels. A safe distance exclusion zone could be 400 meters? I do not know but we are talking a possibility of a big high energy collision with shrapnel - it could be 1 km or more. So when they build the London to Edinburgh hyperloop that they talk about, are they going to build a corridor 2 km wide all the way through the heart of England? Even putting the tubes in trenches will not stop shrapnel flying for massive distances. Talking about putting solar cells on top of the tunnels is a total joke if you are going to have 1km each side unoccupied. --- End quote --- Safe distance, LOL? By same merits, you would need to keep people away from usual high speed train at least a few km away as well :palm: --- Quote ---How much kinetic energy can a loaded shipping container have at this speed? The vehicle will probably have to have at least the mass of the heaviest container. --- End quote --- FYI due to much smaller size, kinetic energy will be lower than of usual high speed train. |
| amspire:
--- Quote from: wraper on January 20, 2018, 12:35:49 pm --- --- Quote from: amspire on January 20, 2018, 12:21:02 pm ---Let's say they can travel at 1000km/h. The tubes have to be safe. There has to be a safe distance between tubes so a crash in the Up tube can't take out the Down tube. A safe separation may be 100 meters. That is not the worst part. It has to be safe for people in the proximity of the tunnels. A safe distance exclusion zone could be 400 meters? I do not know but we are talking a possibility of a big high energy collision with shrapnel - it could be 1 km or more. So when they build the London to Edinburgh hyperloop that they talk about, are they going to build a corridor 2 km wide all the way through the heart of England? Even putting the tubes in trenches will not stop shrapnel flying for massive distances. Talking about putting solar cells on top of the tunnels is a total joke if you are going to have 1km each side unoccupied. --- End quote --- Safe distance, LOL? By same merits, you would need to keep people away from usual high speed train at least a few km away as well :palm: --- End quote --- No. A high speed train derailment is not an explosion. A Hyperloop crash can easily be an explosion. Totally different. |
| wraper:
--- Quote from: amspire on January 20, 2018, 12:39:17 pm ---No. A high speed train derailment is not an explosion. A Hyperloop crash can easily be an explosion. Totally different. --- End quote --- Why, there is no fuel to explode compared to usual train. If you think about implosion because of vacuum, then it won't be that severe, it's is only 1 bar of pressure difference. There would be bent tube worst case. |
| amspire:
--- Quote from: wraper on January 20, 2018, 12:45:26 pm --- --- Quote from: amspire on January 20, 2018, 12:39:17 pm ---No. A high speed train derailment is not an explosion. A Hyperloop crash can easily be an explosion. Totally different. --- End quote --- Why, there is no fuel to explode compared to usual train. If you think about implosion because of vacuum, then it won't be that severe, it's is only 1 bar of pressure difference. --- End quote --- You are kidding? You only need energy for an explosion. All an explosive is is a way to quickly release a lot of energy. Another way is to have an object weighing tonnes travelling at 1000km/h come into destructive contact with a stationary tube. Anyway, there is fuel. The carriages have to carry hours of compressed oxygen, and if you combine this with metals at their combustion temperature, absolutely massive amounts of energy can be released. Aluminium when it oxidises releases far more energy then any fuel. |
| wraper:
--- Quote from: amspire on January 20, 2018, 12:51:50 pm ---A high speed train derailment is not an explosion. --- End quote --- I don't see any solid evidence that won't be the case for hyperloop. --- Quote --- Another way is to have an object weighing tonnes travelling at 1000km/h come into destructive contact with a stationary tube. --- End quote --- It won't be head collision, and it will just bounce away from a wall. --- Quote ---The carriages have to carry hours of compressed oxygen --- End quote --- More likely just compressed air. Also probably there won't be any as there won't be complete vacuum, just low pressure air. They could use pumps to compress air present in the tube. --- Quote ---Aluminium when it oxidises releases far more energy then any fuel. --- End quote --- You need aluminium powder for that to happen. Won't happen with solid piece of aluminium. |
| Navigation |
| Message Index |
| Next page |
| Previous page |