Global warming is changing the climate on the planet andmakes professionals develop new mobile and cost-effective climate systems. So, at the University of California, they attended to the fact that San Diego is getting hotter from year to year, and scientists have created a prototype of an air conditioner designed to be worn right on the body. This device regulates the heat exchange in the human body, warming or cooling it.
The prototype has the appearance of an arm band, between twothe layers of which lay the system of heat transfer from the thermoelectric alloy of bismuth telluride. It uses the principle of a heat pump that transfers heat between the elastomer plates that make up the bandage. Depending on what is hot: the surrounding air or the body of a person, the heat is transferred to the skin of a person or removed to the outside.
With minimal power consumptiontemperature difference of 5 ° -10 °; all heat or cold gets a part of the body at the point of contact of the bandage. If the product will have the shape and size of a vest, then the effect of a personal air conditioner will be provided. Estimated energy consumption:
• on a typical day - 26 W of energy;
• in extreme heat - up to 80 watts.
A person will feel the effect in a few minutes. Compared to wall mounted air conditioners, energy consumption is an order of magnitude less.
With such cooling vests, saving onair conditioning facilities for large offices will be striking. Although for the sake of objectivity, it should be recognized that this type of cooling of the human body is in development and the release of the product is not expected soon.
Source: University of California San Diego