Exchange surface changes:
, with u = 1.472, (r2 = 0.982) (15)
Water diffusivity [1] :
, (r2 = 0.991) (16)
Air flow: 
(17)
Vaporisation latent heat [1] : 
(18)
Saturate vapour pressure (Atm) [9] : 
(19)
Nusselt’s number [10] :
, pour 500 < Re < 5000 (20)
Sherwood’s number [10] :
, pour 500 < Re < 5000 (21)