3 ms·
It’s not very hard to engineer. I used to design underground piping for locomotive fueling. In Nothern Canada where temperature differential is significant. In
by johnwalkr 7y ago
It’s not very hard to engineer. I used to design underground piping for locomotive fueling. In Nothern Canada where temperature differential is significant. In that case double walled piping is used and the temperature may vary greatly between the outer wall (ground temperature) and the inner wall (outside temperature due to fluid stored in an above ground tank).
They are fixed together in some places, and able to slide relative to each other in most places. Fixed points are located in the middle of straight sections and there are C-shaped “expansion loops” that allow the inner pipe to expand or contract relative to the outer pipe.
The outer pipe has a vacuum applied by a vacuum pump, and a greater than nominal vacuum leak indicates an issue.
Of course, it’s expensive compared to a single pipe.
- einpoklum 7y agoYour post makes me hopeful that this could be possible with some political pressure by public protests. Although - we should never underestimate the power of dark side^H^H^H^H^H^H^H^H^H^H oil and gas lobby.
- layoutIfNeeded 7y agoWhat does ^H^H^H^H^H mean?
- d33 7y agohttps://en.wikipedia.org/wiki/Backspace#^H https://en.wikipedia.org/wiki/Backspace#^H