Buoyancy device by phase change of water to ice

[Willy]

combine the above with this

https://overunity.com/19449/hydraulic-product-of-water-phase-change/msg576872/#msg576872

[panyuming]

Buoyancy device by phase change of water to ice.

Not great, but possibly O.U.

Thanks to Willy for sharing his vision for phase transitions.

I feel that improving your idea and using a liquid-to-gas phase transition might have better results.
Because of the phase transition from liquid to gas,
there may be a volume change of more than 500 times.

Figure 1 is a schematic diagram of the assumption principle

Figure 2 shows the structure that may be self-running. It is another solar installation.

The heat of vaporization of water is approximately 2200KJ/KG
The heat of vaporization of Freon is 160KJ/KG

In Figure 2, many expansion boxes hanging on the chain,
each consisting of several thousand small boxes,
are designed to allow for faster heat exchange.

The lower part of each group of expansion boxes has a pressure resistant box with a valve.
The small box and the expansion box are one and move with the chain together.
Eliminates the complex piping and valves and sealing structures that may be required in Figure 1.

Freon emerges from the water at the top of the structure
and is cooled by local cold air into a liquid that flows into this small box.
The valve of the cartridge is then dialed to the closed state at the appropriate position in the chain operation.
The valve of the small box is toggled open at the bottom of the chain ring at the right position.

The liquid Freon in the small box is heated and vaporized at the bottom by lake water at 4 degrees Celsius.
The volume of gas Freon is increased, so that the expansion box floats up, and a larger buoyancy energy is obtained.

If the rotation speed is fast enough, it is not necessary to use car antifreeze.

[Willy]

Thank you as well.


Water expands upon freezing, due to crystalline structure formations within the ice.
This is not the same kind of process as the thermal expansion of other fluids / gases.

The exterior water pressure inhibits the ability of a gas to expand at depth,
much, much more so than that exterior water pressure affects the transitioning of
water to ice and its accompanying expansion.

[Willy]

Buoyancy device by phase change of water to ice.

1. A volume of water is frozen while at some great depth of water.
2. The water surrounding this ice is very near in temperature to the
freezing temperature of water.
3. The ice is contained within a highly temperature insulating vessel while riseing.
4. The insulating vessel has a neutral buoyancy in water.

What effect does water pressure have upon the freezing point of water ?
The freezing temperature of water remains nearly the same up to around
200 MPa or 29,007.5 PSI

1 foot of height of water in a column exerts 0.4335 psi

29,007.5 PSI divided by 0.4335 = 66914.6 feet or 20395.57 meters of depth
in water before there is a significant change in the freezing temperature of water.

The density of liquid water is 1 g/mL.
The density of ice is 0.92 g/mL
The ice is 8% less dense than the water.

Therefore, for every 1 Kilogram of water frozen at depth we get 8% of 1 Kilogram
of buoyancy in water.

1 kg = 9.80665 Newtons
9.80665 Newtons * 0.08 kilograms = 0.784532 newtons of buoyancy force for each
kilogram of ice.

0.7845 buoyancy joules per kilogram of ice at 1 meter of depth.

4.184 joules = 1 calorie.

It requires 4.184 joules to increase the temperature of 1 gram of water by 1 degree
centigrade.

It requires 4184 joules to raise 1 kilogram of water by 1 degree centigrade.

Below about 200 meters depth, ocean water has an average temperature of 4°C (39°F).

Given that we begin with water at a temperature of  1 degree centigrade.
Given that our refrigeration device is 100% efficient.

5333 meters is the break even point.

The average of the ocean's depth is 3,700 meters while the Challenger Deep is approximately 10.925 meters.

Water expands upon freezing, due to crystalline structure formations within the ice.

This is not the same kind of process as the thermal expansion of other fluids / gases.

The exterior water pressure inhibits the ability of a gas to expand at depth,
much more so than
that exterior water pressure affects the transitioning of water to ice and its accompanying
expansion.

[Willy]

combine the above with this