Heat and the law of Archimedes. Drawing, description

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Heat and the law of Archimedes. Tips for a modeller

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See what an original and simple heat engine was proposed by the inventor from Krivoy Rog A. Meshkovets.

Heat and the law of Archimedes

On the rim of the impeller 1, soft elastic tanks 2 are attached, containing small equal amounts of a low-boiling liquid. For example, it can be a 10% aqueous solution of ammonia - ammonia. The impeller is mounted on a shaft 3, the ends of which are fixed in the walls of the vessel 4, which should not prevent the shaft from rotating freely. The vessel is filled up to the wheel hub with water heated to 70-80°. At this temperature, as you know, ammonia boils ...

Now let's spin the wheel with our hand. What will happen? Reservoirs, getting into heated water, will heat up. The ammonia in them will warm up and boil. Its vapors will inflate the shells of elastic tanks - the more, the longer the tank is in warm water.

Since the wheel is spinning, the volume of the tanks that have just entered the heated water will be less than the volume of the tanks leaving the vessel with water. But after all, a buoyant force acts on the reservoirs in the liquid, which increases in proportion to their volume. Therefore, a greater force will act on tanks emerging from the water than on tanks that have just submerged.

After leaving the heated water, the tanks will be cooled by the surrounding air. The ammonia will condense and the volume of the tanks will decrease. Thus, the cycle of the heat engine will be closed. The wheel will continue to spin on its own. It will stop only when the temperature of the water in the vessel drops below the boiling point of ammonia. So don't worry: "perpetual motion" is not invented here.

The author sawed the impeller from textolite 10 mm thick. After manufacturing, it should be carefully balanced.

The wheel has fingers - elastic reservoirs are put on them. In their role, you can try rubber balloons. They must be firmly screwed with a thick thread, together with the joints with fingers - lubricate with waterproof glue.

Attention! Ammonia vapors are harmful to the mucous membranes, so all work with ammonia should be done in a well-ventilated area.

Think about it: you can’t apply such a design of a heat engine for real domestic or industrial needs - for example, in an area where there are geothermal waters. Probably, in this case, ammonia is no longer suitable.

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