Research Article
Design and Development of Walk-In Type Hemicylindrical Solar Tunnel Dryer for Industrial Use
Table 1
Design conditions and assumptions for design of the dryer.
| Items | Condition or assumptions |
| Location | Udaipur (27°42′ N, 75°33′ E) | Orientation | E-W direction | Product dried | Di-basic calcium phosphate | Loading capacity | 1500 kg per batch | Initial moisture content | 62.87% (db) | Final moisture content | 10.62% (db) | Sunshine hour | 10 h | Drying period required | 18 h | Global solar radiation (I) for Udaipur region | 5.5 kWh/m2 | Dryer efficiency (g) | 30% | Collector material (cover) | UV polythene 200 micron sheet | Density of air at ambient (kg/m3) | 1.252 | North wall | Glass wool sandwich in metallic cover | Height of chimney (H) | 3.75 |
|
|