Examples of Isolated Systems

Is named isolated thermodynamic system to the one who does not exchange energy or matter with the environment in which it develops. They are, therefore, ideal systems, non-existent in reality except for a certain period of time and according to certain considerations. For example: the wetsuits, the thermos, the universe.

There are two possible uses for the term isolated system, one in electronics and the other in thermodynamics.

In the electronics Isolated electrical systems are those that operate outside of an established supply network, and do so remotely thanks to autonomous power sources such as solar panels, wind turbines or fountains geothermal.

However, the most common use of the term is the second, referring to the thermodynamics or branch of physics that studies the mechanics of hot and energy.

In both cases it is called system to a portion of reality whose elements operate through a more or less ordered relationship with each other. The human body, planet Earth or even the Milky Way can be understood as systems.

Types of thermodynamic system

This branch of physics usually distinguishes between three types of system:

Examples of isolated systems

1. Wetsuits. The use of these suits protects for a period of time the heat exchange between the water and the body, and prevents it from entering the interior.
2. Thermos. For a certain time, the thermoses achieve isolate heat contained in its interior and prevent the leakage and entry of energy and matter.
3. A thermal cav. The cellars operate based on the extreme reduction of the heat input, keeping their content cold for a certain period. Once that time range is exceeded, the content will begin to heat up.
4. Igloos of the Eskimos. They are designed in such a way that no heat or matter enters or egresses.
5. A gas cylinder. Contained under pressure inside, the gas is isolated from the matter and energy around it in normal conditions since it is possible that the heating of the cylinder forces the gas to expand and occur a tragedy.
6. The universe. The universe is an isolated system since nothing enters or leaves it, neither matter nor energy.
7. Canned food. Under normal conditions, these food they are far from any exchange of matter or energy. Of course, it would be possible to subject the can to heating or cooling, and even melt it into extreme temperatures, but even for a (brief) moments the food will be insulated by full of heat.
8. A safe. The contents in the safes are separated by thick airtight layers of metal from its environment, isolated from matter and energy, at least under normal conditions: if we throw it into a volcano its contents are safe to melt and incinerate.
9. A hyperbaric chamber. Useful precisely to isolate divers with nitrogen bubbles in their blood from atmospheric conditions, a hyperbaric chamber does not allow the exchange of matter or energy, or at least not in appreciable quantities and significant.

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