Desiccants are capable of extracting or releasing water
vapor from the air, in relatively large quantities. It is
important from the economic point of view the recovery
by thermal regeneration of these desiccants. Therefore, the
development of a technique for the regeneration of this
type of substance is of technical and economic interest. For
this reason, in the present work, two equipments for the
regeneration of calcium chloride in aqueous solutions
were designed, built and experimented with, one with a
flat surface and the other with a stepped surface assisted
by solar energy as a heating medium. This process was
monitored through various temperature and humidity
sensors to know the operating conditions inside the
regenerators, as well as the environmental conditions
throughout the experiments through a climatic and
solarimetric station. During the study it was observed that
the materials and dimensioning of both equipment are
adequate. When comparing the temperatures and amount
of water evaporated during the test period, a better
performance was obtained in the regenerator with an
inclined plane, than in the stepped type, which was
corroborated by evaluating the relative density of the
solutions.