Homogenized Antifreeze?

Well, waxes are lipophilic, insoluble in water.

So, there is that.

So is butter fat, but the fat is broken down into very small particles and is not able to separate from the milk.

I think the same might apply for some waxes.

The micro particles of wax would liquify at a certain temp. and and solidify at another lower temp. They would not clump together because of the flow and size of the particles. The phase change would absorb more heat than the liquid alone. Wax has a latent heat of 200 to 220 joules per gram. Water is 80 joules/gram.

I know this idea is way out there, but crazy things sometimes spur research from curious minds after lying dormant for years.

I remember a coolant made by DuPont that was used instead of water in some applications, claiming a higher specific heat than water.

I just can't remember the name of it.

Anyone know of it and remember?

Okay.

A couple of observations: butterfat is not a petrochemical, I cannot draw any conclusion of similarity here. Homogenized milk is not usually expected to tolerate Fahrenheit temperature range of -20 to 210 degrees, let alone maintain fit for purpose state after this exposure.

There may well be something in this idea, it just seems to me there are more links in the thought chain that need proof-tested before we grind up some candles and add the wax to existing engine cooling systems.

From my post, how milk products is broken down is that it ruptures the fat globules that can do that. Wax has no fat particles.

a little fyi on waxes details...

"waxes are not made of fat globules; waxes and fats are both lipids but have different chemical structures. Waxes are esters of long-chain alcohols and fatty acids, while fats (triglycerides) are esters of glycerol and three fatty acids. While both are lipids, their distinct chemical structures give them different physical properties and functions. "

A non-water coolant? Evans? But I have no idea who made it.

"I remember a coolant made by DuPont that was used instead of water in some applications, claiming a higher specific heat than water."

I just can't remember the name of it.

Coolinall. Or something like that. Used it in TWTs and Klystrons.

I think Evans is the one SE is mentioning, but I don't know if made by DuPont.

Interesting thoughts, I would say its not viable because Wax is not a fat.

The process of homogenizing milk it keeps it from separating by running the milk under high pressure through a screen that will rupture and breaks down fat globules in milk into smaller, uniformly sized particles, creating a smoother texture (emulsified).

And keeps it from separating.

My suggestion is using oil as a heat transfer liquid, but that may not what your looking for. And oil is lipophilic insoluble.

My suggestion is using oil as a heat transfer liquid . . .

Go back 100 years or more and the Rumley Oil Pull tractors were cooled with oil which let them run hotter to be more efficient.

What's old is new again...

Oil as a heat transfer liquid? That was used 100+ years ago in the Oil Pull tractors so they could run at a higher temperature thus more efficient.

I use a waterless coolant in my car, seems to work better, no overheating, no corrosion...

Waterless coolant is a glycol-based liquid substance that does not contain water. Its boiling point of 191 °C (375 °F) is higher than that of water-based coolants and it resists the formation of corrosion.^[1] The substance was invented to circumvent the problems of vaporizing water. When water vaporizes, it retains only 4% of its thermal conductivity.^[2] Water-based coolants are safe at temperatures below the boiling point of water to maintain the pressure of the system. Waterless coolant has environmental benefits, including reducing the use of cooling fans and therefore improving fuel economy. The coolant does not generally need changing, reducing the hazardous waste following repeated coolant flushes.^[3]

Automotive use

Waterless coolant is most prominently used in the cooling systems for motorsports, classic car, ATVs, UTVs, snowmobiles and older cars.^[4] Older cars often have non-pressurized cooling systems, and the water-based coolant can boil and overflow. Traditionally, this issue has been solved by topping off the radiator with water. This dilutes the coolant and the water can contain minerals harmful to the vehicle. Classic car owners have adopted waterless coolant to solve this problem. Jay Leno uses waterless coolant for his replica 1937 Bugatti Type 57SC Atlantic vehicle.^[5]

Other uses

University of California, Los Angeles used waterless engine coolants in its backup generators partly to reduce labor costs, since traditional water and ethylene glycol-based coolants typically need replacing every three years. Waterless coolant lasts the life of the engine and does not require a pressurized system, which reduces stress on the cooling system plumbing. It has also been used to lower fuel usage by reducing the operating time of radiator fans, as done by some waste management departments.^[6]

Primary agents

Waterless coolant is glycol-based. The liquid avoids corrosion and electrolysis while the additives remain soluble.^[3][7]

Freeze point

Waterless coolant acts as an antifreeze, protecting engines to −40 °C (−40 °F).^[5]

Disadvantages

Waterless coolant is generally more expensive than traditional water and ethylene glycol-based coolants.

https://en.wikipedia.org/wiki/Waterless_coolant

Since most glycol based liquids are hydroscopic, does this coolant absorb moisture from the air?

If changing from standard antifreeze to this coolant, should all old fluid be drained and system flushed? I have several older tractors that could benefit from this.

The endorsements from Jay Leno and SolarEagle do not necessarily indicate a universal warm and fuzzy result.

This link is an older commentary about some of the pros and cons of waterless coolant:

https://greengarageblog.org/17-waterless-coolant-pros-and-cons

I don't think this is viable. When the block gets to 190 and the thermostat opens, the coolant in the radiator will still be congealed, and flow will not happen. If flow starts with entry to the radiator at 190, at what temp does it exit if cooling is taking place? (Actually block temps will be well above 190 when stabilized due to pressurization and the antifreeze mixture. Yes, temps must go past 190 in order to get to the stable temp.)

I don't think it would work. The coolant is colder in the radiator and hotter in the engine block. If the coolant froze in the radiator, it would block the flow to the engine block.

The coolant has to stay in liquid form to allow it to carry heat away from the engine.

It wouldn't be terribly difficult to make the O/W microemulsion and the idea of using the fusion enthalpy is interesting.

I would be extremely concerned with the turbulence that exists in the cooling systems. Fairy emulsions -:which are also stable O/W systems - are easily broken (or even inverted) by turbulence and shear.

If the breakdown or inversion occurs, I would expect some serious problems with large wax "globs" clogging the radiator and perhaps causing problems with the physical operation of the thermostat.

Very interesting problem to work on, though.

A problem I see is that when the wax solidifies again it is just as likely to clog the radiator.

Also waxes expand significantly when melted but upon solidifying they do not give off a great latent heat.

Why not just use ethylene glycol, one of my acquaintances had a fiat the used pure glycol in the radiator.

"The specific heat capacity of ethylene glycolbased water solutions is less than that of pure water; in a 50 percent solution, ethylene glycol's specific heat capacity compared with pure water is decreased at least 20 percent at 36 degrees and about 17 percent at 200 degrees. Propylene glycol, another common coolant, has an even lower specific heat."

https://www.hotrod.com/how-to/glycol-or-water-coolant

https://youtu.be/hpgV6KKdzGM?si=5RDzl4f85UfRGq2S

This demo of a hot wax phenomenon makes me wonder if hot wax as a coolant is not necessarily a good idea.

HTRK, the idea is not new but for automotive use not practicle.
Research is curruntly being carried out into PCM and Two-phase cooling methods, especially for electric vehicles for cooling during high charging rates and stable temperatures for the electronic systems.
The idea is to eliminate the requirement for liquid systems using pumps and large radiators.

There was this discussion a few years ago about somrthing similar https://cr4.globalspec.com/thread/107777/Heating-System-Additive

Another problem with wax is expansion. Waxes expand quite a bit when they are heated. How would the system handle this?