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What is a Cryocar?

It is a liquid nitrogen powered vehicle.

Propulsion systems are cryogenic heat engines in which a cryogenic substance is used as a heat sink.

Cryogenic Heat Engine

It is a engine which uses very cold substances to produce useful energy.

There is always some heat input to the working fluid during the expansion process.

Liquid Nitrogen(LN2)

Liquid Nitrogen is the cheapest, widely produced and most common cryogen.

It is mass produced in air liquefaction plants

The liquefaction process is very simple.

Normal, atmospheric air is passed through dust precipitator and pre-cooled.