This invention is about condensing water vapor from the air
near the sea surface, directly onto cold freshwater, previously
available in the system.
The freshwater is first cooled by one of two methods:
(nothing inventive here yet)
1. Cold deep-sea water flowing through a coil or passing
heat ribs that pull the freshwater's heat into the deep sea
2. Spraying a mist of regular or even warm sea water and
using the evaporation to cool the freshwater.
The damp water-vapor filled sea air is then sent through the
cold freshwater to condense and add its vapor to the
pool, as follows:
(a) The freshwater is pumped or sucked up and then sent to
(a1) drip down or
(a2) flow along open pathways or
(a3) to openly flow in downgoing verticle streams (like water
from a home faucet) through the air, or
(a4) to be sprayed into the air creating a mist of cold
(b) the damp air is pumped into the water creating bubbles
emitting dry air and leaving the vapor condensed into the
water. (watch Rohas' fascinating and unscientific videos
water with his Fresnel lens through a pipe going into a bottle
The amount of condensed water received from the originally
damp air, now added to the water in one of these five
is compared with condensing water from damp air with:
(c1) the new materials for harvesting water in the desert,
mimicking beetles and desert plant surfaces, or just
(c2) cooled surfaces cooled by the same cold deep-sea water,
a combination of the two:
(c3) cooled surfaces made of the new materials.
and scientific conclusions are gathered.
I suspect that cold water droplets or several cold water
streams will be cheaper and perhaps even more efficient than
the new materials, and easier to construct. Thus using the
cooling effects of deep-sea water, or water evaporated
separately for cooling and using some pre-received
freshwater to harvest freshwater from the sea.
If the sprayed mist or drops are found to work this may very
well be close to the behavior of rain droplets in rain clouds.
I suspect that a counter-current system where the cooling and
condensing are done in counter-current streams would be the
best, in this case, sending the damp air through a very slight
rise with cold freshwater dripping in all along from the top of
the air pipe, from a small cold-freshwater pipe flowing
downwards in the opposite direction via gravity.
The air continuously losing its vapor becomes lighter and
to rise, but in any case, can be nudged in the right direction
the correct speed with a fan.