I am considered one of the brainiest people who ever lived. My friend, who helped me write an important letter, is also no slouch IQ-wise.
For kicks we invented a refrigerator , as if the world needed another one, and as if we didn’t have better things to do with our King-Kong-sized minds.
I don’t know how to read patents, and even if I did, I don’t understand what’s going on in this special (one would expect) machine. Any help?
jjimm
May 20, 2010, 12:56pm
2
If you take the coefficient of mold (m), and multiply it by the square of how cool © the fridge is, you can find out how long it will keep eggs (E).
For such a braniac, you don’t do much searching do you? Someone wrote about your invention on Wikipedia .
The machine is a single-pressure absorption refrigerator, similar in design to a gas absorption refrigerator. The refrigeration cycle uses ammonia pressure-equalizing fluid, butane refrigerant, and water absorbing fluid, has no moving parts, and does not require electricity to operate, needing only a heat source, e.g. a small gas burner or electric heating element.
The ammonia is introduced into the evaporator, causing the refrigerant to evaporate, taking energy from the surroundings, due to the fact that the partial pressure of the refrigerant is increased, and the mix of gases then passed through to a Condenser heat transfer condenser where it comes into contact with the absorption liquid. Since ammonia is soluble in water and butane is insoluble, the ammonia gas is absorbed by the water, freeing the butane. Heat is thus first given from the butane to the ammonia as the gases mix, and then from the ammonia to the water, as the ammonia leaves the butane, taking heat with it, and dissolves into the water. The butane then assumes the pressure inside the condenser, which is enough to make it liquefy. Since butane’s specific gravity is less than that of ammonia in solution in water, the liquid butane floats on top of the ammonia solution. The liquid butane then passes back to the evaporator to repeat the cycle. The ammonia solution flows to a heat exchanger where a heat source drives it from the water as a gas again and it returns to the evaporator.
The Einstein refrigerator has been described as “noiseless, inexpensive to produce and durable”.
This is pretty dang ingenious.
Sounds like it would be useful in third-world countries.
Or is there some later invention that is even more efficient and easier to maintain?
Leo Bloom said:
It is a refrigerator that cools by applying heat. As opposed to applying work (i.e. using a motor).
Gagundathar said:
These are generically called “absorption refrigerators”.
An absorption refrigerator is a refrigerator that uses a heat source (e.g., solar energy, a fossil-fueled flame, waste heat from factories, or district heating systems) to provide the energy needed to drive the cooling process. The system uses two coolants, the first of which performs evaporative cooling and is then absorbed into the second coolant; heat is needed to reset the two coolants to their initial states. The principle can also be used to air-condition buildings using the waste heat from...
They are used in campers and RVs so you can use propane to drive the refrigerator (as opposed to a generator or batteries).
And from Wilbo’s link:
In 2007, Adam Grosser presented his research of a new, very small, “intermittent absorption” refrigeration system for use in third world countries at the TED Conference. The refrigerator is a small unit placed over a campfire, that can later be used to cool 3 gallons of water to just above freezing for 24 hours in a 30 degree Celsius environment.[3]
Someone else is thinking along the same lines.