SOLAR DRIER (DESIGN VERSIONS) Russian patent published in 1997 - IPC

FIELD: solar engineering; solar driers for fruit, vegetable, and other foodstuffs for individual and commercial use. SUBSTANCE: solar drier has case 1 tightly closed in working position, insulation 2 for all external walls except for wall 3 facing transparent coat which is not insulated. Case accommodates chamber 5 for trays 6 holding products to be dried. Trays are arranged so that they form stepping channel 7 in the form of converging tube to feed air to product being dried and stepping channel 8 in the form of diffuser to discharge wet air. Air drier built up of water-filled tubes 9 and separated from drying chamber by partition 10 is placed at wall opposite to transparent coat. Condensate dripping from tubes is discharged outside by using, for example, condensate accumulator 11 and water seal 12. Air drier may be made in the form of membrane such as dense canvas one passing water vapor from drier air outside or filter with water vapor absorbing filler, such as silica gel. EFFECT: improved design. 3 dwg