VINTAGE ANTIQUE JEWELRY

can a stirling engine to become a nuclear reactor backup cooling system?

Hi, first of all I am not a mechanical engineer, and I am sorry if I am asking the foolish question. Based on my knowledge, the sterling engine works based the difference between the cool and hot temperature. As for recent nuclear crisis in Japan, I do doubt about this solution. These kind of power generator usually being built near region where water source is abandon. And apparently the temperature of the overheating nuclear core is very much distinct with the temperature from the water nearby. Is it possible that a huge sterling engine to be designed and use to circulate the cooling water inside the nuclear core as long as the core remain hot?

if you put mechanical energy into a sterling engine it becomes a refrigeration system.

There are also acoustic sterling engine refrigerators that use the oscillation of an air column to run the working fluid/gas back and forth through the regenerator. One end gets cold, the other gets hot. A speaker or electroacoustic driving element of whatever variety is used to drive the air column.

Anything that circulates a heat-carrying fluid or gas through a heat exchanger from a hot environment to a cold environment will cool something.

Installing such a sterling engine cooling system would take a while, even if it were used to drive a water pump. You'd have to put part of the engine inside the reactor to utilize the reactor's heat.

If the reactor is too hot it would melt the engine unless the engine were made of appropriate materials.

This is not a bad design for an emergency backup system if it were installed when the reactor was constructed. Part of the problem with sterling engines is that they have very low energy density. You need a large sterling engine to produce a small amount of mechanical energy. This is partly why sterling engines are not used in automobiles.

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