Explanation – Vapor compression cooling is the most widely used type of refrigeration. It uses a compressor to lower the pressure of the refrigerant, which causes it to cool and turn into a liquid. This method is more efficient than other types of refrigeration and is used in various applications, including air conditioning and industrial cooling. Other Refrigeration method in news: Magnetic cooling effect (MCE) is defined as the reversible temperature change of a magnetic material when it is subjected to an external applied magnetic field. In the magnetic refrigeration cycle, a magnetic field is applied on the magnetic material under an adiabatic process (no exchange of heat with the surrounding). When the magnetic field is removed during adiabatic demagnetization, the magnetic moments of the material become randomized, resulting in a decrease in temperature below the ambient temperature. This process causes the material to absorb heat from the surrounding heat-transfer medium. Magnetocaloric effect, MCE, is heating or cooling of a magnetic material upon application or removal of magnetic field. Materials that display a significant MCE are called magnetocaloric materials.

Source: Forum IAS