American forces overcome the heat of the air with self-cooling units

ArabiaWeather.com - Military aircrews can't keep their wearers cool in the heat. So; The US Army has developed a self-cooling system that can be worn under uniforms without having to remove protective equipment.

These environmental control units are lightweight and are powered by a small battery installed inside the protective shields.

Mechanical engineer Brad Labrez, at the Center for Engineering, Research and Development "NATIC", explained that these units operate with the same technology used in air conditioners for homes or in refrigerators, except that it will work on cooling a liquid, instead of cooling the air, to be pumped after that with fine tubes through a jacket. cooling.

This refrigerated liquid can travel a distance of approximately 110 feet in coiled tubes inside a jacket, which is worn directly on the skin, and although the size of the unit is only 3.5 inches, it provides 120 watts of cooling power, which is almost identical to the cooling power in a refrigerator. small.

It is noteworthy that helicopter pilots and crews use cooling systems installed in aircraft to overcome the heat, but many crew members avoid using them because they are uncomfortable.