Re:How Hyperloop One Went Off the Rails
by dougmany on Monday August 15, 2016 @04:26PM
(#12293148)
What convinced that it would not work was reading about the temperature pressure differences the on car motor was supposed to handle. It sounds like there needs to be a giant air compressor strapped to the car. Having been in a garage when an air compressor turns on (unpleasant), I really don't want to be in a tiny metal tube with a giant air compressor on all the time. It sounds several times worse then being in an airplane.
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The compressor in your garage is almost certainly a reciprocating compressor (oscillating motion = very loud), while the hyperloop uses an axial compressor (pure rotary motion = much quieter).
The same sound absorbing layers and vibration isolation technology that's used on jet planes could also be used if needed.