Re: wave action to make fresh water

Frogwatch <oldfrogster@xxxxxxxxx> wrote:

Those reverse osmosis filters used on liferafts to make fresh water
from saltwater require pressure which is why thye are pumped. So, why
not use wave action to drive a ram pump to pressurize such a revrse
osmosis system for trickle irrigation near the shore?


Because wave action usually destroys anything being used to derive
power from it - look at the many wave action power stations that have
come to grief in the past.

I can recall that our CSIR spent considerable time, effort and money
during the 1980's trying to develop a system that would harvest power
from waves (and survive the waves) with only limited success.

Eugene L Griessel

Consider the Malevolent Universe Theory: it really IS out to get you!
.

Relevant Pages

  • Re: Hydrogen Storage
    ... depths are this great, there is also large wave action. ... electrolysis right? ... The pressure already availible from the water colum ...
    (sci.engr.mech)
  • wave action to make fresh water
    ... Those reverse osmosis filters used on liferafts to make fresh water ... from saltwater require pressure which is why thye are pumped. ... not use wave action to drive a ram pump to pressurize such a revrse ...
    (sci.military.naval)