Innovation in refrigeration

ALAZ ARIMA’s cooling solutions are based on the phase change of a fluid to evacuate heat efficiently and without electricity consumption, using devices called thermosyphons. A thermosiphon is a device that allows the transfer of heat from one place to another, with an equivalent thermal conductance, better than that of any other known element. They are often called “heat superconductors” since they have a high capacity and heat transfer rate with almost no losses.

A basic thermosyphon would be a sealed tube, inside which a fluid executes a phase change between two differentiated ends as an evaporator located at the bottom and a condenser located at the top. If we apply heat in the evaporator area, where the fluid is in the liquid phase, it will boil, becoming vapor and rising due to its lower density to the condenser, where it will give up its latent heat, transforming into liquid again, which will return to the evaporator due to the action of gravity. This movement of a fluid due to the difference in densities is called the thermosiphon effect.

Thermosyphons are passive systems, without moving parts, that operate without the need for electrical power, do not require maintenance and have a useful life of more than 30 years. In refrigeration they are used to move heat from restricted or densely packed areas to areas with colder air or more volume where air-cooled heat sinks can be arranged.