3 ms·
To anyone who works with vacuum systems, there is no "full vacuum", it's always some level of partial vacuum. The challenges are very similar, just the incredib
by stephen_g 3y ago
To anyone who works with vacuum systems, there is no "full vacuum", it's always some level of partial vacuum. The challenges are very similar, just the incredible amount of energy that would be required to pump down and maintain that partial vacuum such a huge volume would be slightly less massive.
- diebeforei485 3y agoI don't think energy for air pumps is anywhere near the biggest problem for Hyperloop. There are other far hairier engineering challenges. That said, the efficiency of pumps is not at all linear with air pressure - 100 Pa is significantly better than near vacuum. The other misconception here is the assumption that the entire length needs to be maintained at 100 Pa. This is not necessary. Having a pressure gradient is fine because it isn't going fast near the terminals anyway.