4 ms·
> Both sides weigh equal amounts so there's no net force. Water at 40m depth has a different pressure than at the surface level. Pumping at the surface and re
by randito 5y ago
> Both sides weigh equal amounts so there's no net force.
Water at 40m depth has a different pressure than at the surface level. Pumping at the surface and releasing at depth will have significant water pressure difference.
(A quick Google later). At 40m, it's 5atm or roughly 75psi pressure.
(Another quick Google). Oil pipelines run at a higher order of magnitude as that, so it's doable but would return energy, increasing as you go deeper.
- rland 5y agoGravity takes care of the pressures. If you put a long pipe vertically in the water, with its bottom open and its top sticking up a couple meters on top, and then put some water into the top of it, what happens to the water column inside? You do not need to get the water at the surface to 10, or 100, or 1000 atm. You just need a long pipe that goes all the way to the bottom. Likewise for transporting water upward.