TITLE:
Thermal Study and Modeling of the Cold Room of a Solar Adsoption Refrigerator
AUTHORS:
Amadou Konfe, Mahamadi Savadogo, Loukman Ouedraogo, Ousmane Moctar, Sié Kam
KEYWORDS:
Thermal, Evaporating, Adsorption, Cooling, Modeling
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.13 No.11,
November
21,
2023
ABSTRACT: 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.