Air conditioning device using indirect evaporative cooling

A device for indirect evaporative cooling, the device being configured to blow cooled air into a room, the device comprising:

• an air intake for admitting air to be cooled;
• and
• a plurality of plates forming a stack, the plates being spaced apart from each other along a transverse axis, each plate of the plurality of plates comprising a dry face opposite a wet face, the wet face of each plate being configured to be wetted by water, each plate being configured to be cooled by evaporation of water from the wet face;
• wherein, in each stack:
• two adjacent plates of the plurality of plates delimit a channel, the channel being either (i) a dry channel, delimited by two dry faces of two adjacent plates, or (ii) a wet channel, delimited by two wet faces of the two adjacent plates;
• the plates of the plurality of plates are arranged so as to alternate dry channels and wet channels, each dry channel being adjacent to a wet channel;
• each dry channel extends along a longitudinal axis between an air inlet, connected to the air intake, and a cold outlet for discharging cooled air resulting from the flow of air through the dry channel;
• and
• each wet channel extends along the longitudinal axis between a wet inlet and a wet outlet the wet outlet being configured to evacuate humidified air following flow through the wet channel, the wet inlet being configured to receive part of the air emerging from the dry channel;
• and wherein:
• each wet channel comprises a first capillary structure made of a first capillary material, configured to be wetted by water, the first capillary structure contacting at least one wet face of each wet channel;
• at least one wet face of each wet channel comprises a second capillary structure, the second capillary structure extending from the first capillary structure along the wet face, the second capillary structure being thinner than the first capillary structure;
• and
• the stack comprises a water inlet configured to receive water, the water inlet being in fluid contact with at least one first capillary structure.