In this work, we are interested in the study of the thermal exchanges which
take place at the evaporator of an adsorption refrigerator. Due to the cost of
designing experimental devices and the impossibility of studying the influence
of certain parameters experimentally, an alternative would be simulation.
The aim is to provide a model for predicting the thermal behavior of the
various elements in the cold room of an adsorption solar refrigerator. A dynamic
modelling of the refrigerator taking into account fluid flow, heat and
mass transfer phenomena in the cold room was made. The calculation code
obtained using COMSOL 5.1 software makes it possible to analyze and study
the influence of the various parameters on the performance of the system. In
a second step, the theoretical results obtained were compared with the experimental
results in order to validate the model. The analysis of the influence
of the physical-thermal properties of the insulating material on the temperature
of the chamber makes it possible to conclude that a material having a low
density ρ, a low thermal conductivity λ and a low specific heat capacity offers
better performance to the cold room. Better thermal insulation also implies
having a reasonable insulation thickness.

Thermal Evaporating Adsorption Cooling Modeling