The given cut-away schematic illustrates the interior of a self-cooling drink container designed by a professional company.
At first glance, it is evident that the bottle consists of five main sections, with two located inside the lower part, which can be rotated by the user.
The lower segment’s purpose is to lower the temperature of drinks and is composed of a heat sink and desiccants. The heat exchanger, fixed at the bottom of the compartment, dissipates heat to the environment. It is surrounded by a thick wall of desiccant, a type of water-absorbing material. Lastly, air is pumped out, creating a vacuum space between the two parts.
In contrast, the upper component functions as a canister for storing the drinks. The liquid is contained within a finely insulated coating and is covered by an aluminium shell. Additionally, there is a layer of watery gel beneath the can, which acts as the primary heat-exchanging factor between the two sections.