Table 1 Structural components of the IMMSD.
Component | Specification | Description / Function |
|---|---|---|
Solar Collector Type | Flat-plate solar air heater | Main source of heated air for drying |
Collector Dimensions | 300 × 100 × 20 cm | Provides large solar absorption area |
Glazing Material | 3 mm transparent glass | High solar transmittance; protects absorber |
Absorber Plate | Corrugated black aluminum | High absorptivity surface for heat gain |
Insulation | 3 cm thermal wool | Reduces heat loss from back & sides |
Drying Chamber Dimensions | 100 × 50 cm | Enclosed drying space for trays |
Drying Trays | 3 trays used (designed for 8) | Spaced 35 cm vertically for uniform airflow |
Airflow System | Four brushless DC fans (12 V) | Ensures uniform distribution of hot air |
Operating Modes | (1) Forced convection: 0.13 m³/s (2) Natural convection | Optimizes energy use and drying performance |
