Which of the following is not typically associated with refrigeration systems?

In refrigeration systems, energy storage is not typically a primary function or characteristic. Refrigeration systems are designed primarily to transfer heat from a lower-temperature space to a higher-temperature space, thereby cooling the former. This core functionality involves processes such as heat exchange, mechanical compression, and refrigerant flow.

Heat exchange is critical because it involves the transfer of thermal energy from the area being cooled to the refrigerant, which then dissipates this heat outside or to another fluid. Mechanical compression refers to how the refrigerant is compressed to increase its pressure and temperature before it releases heat, allowing the system to function effectively. Refrigerant flow is essential for transporting the refrigerant through the system to facilitate the cooling process.

Energy storage, while possible in certain system configurations (like thermal energy storage systems), is not a standard characteristic of traditional refrigeration systems, where the focus is on continuous heat removal rather than storing energy for later use.