Modeling a Thermochemical Reactor of a Solar Refrigerator by BaCl₂-NH₃ Sorption Using Artificial Neural Networks and Mathematical Symmetry Groups

Table 1

Working range of the thermochemical reactor by barium chloride-ammonia and variables used for the ANN training.

Parameter	Nomenclature	Minimum	Maximum	Unit
Input
Radius 1 inside the reactor	r1	0	0	cm
Radius 2 inside the reactor	r2	2	2	cm
Radius 3 inside the reactor	r3	4	4	cm
Heating fluid’s temperature	Thf	22.512	95.065	°C
Volume of the solid (BaCl2)	Vs	0.0002	0.0002	m^3
Refrigerant volume (NH3)	Vr	0.0003	0.0003	m^3
Desorption time	t	0	12.4375	hr
Reactor height	H	0.1702	0.1702	m
Reactor nominal diameter	Dn	0.0732	0.073 2	m
Output
Temperature at radius 1	Tr1	23.162	75.309	°C
Temperature at radius 2	Tr2	22.866	73.992	°C
Temperature at radius 3	Tr3	22.772	75.437	°C
Volume of the refrigerant	Vg	0	110	ml
Pressure into the reactor	Pg	2.572	11.834	bar