absorber plate type collector having natural air flow. Thermal storage
materials affect natural mass flow rate in the drying system. The thermal
model was developed based on energy equation. The reversed
absorber, packed bed, inclined absorber and dryer are shown in Fig. 5.
The absorber plate with built-in thermal storage (Aboul-Enein, El-
Sebaii, Ramadan, & El-Gohary, 2000) is inclined at 30°.