| 摘要 |
FIELD: solar engineering; heating greenhouses, buildings, and structures, such as dryers for farm products. SUBSTANCE: Solar panel has two transparent screens and case. Internal screen facing object to be heated is coated with selective light-transmitting material of low degree of blackness; solar panel screens are spaced apart at optimal distance; selective light-transmitting coating is applied to internal screen on side facing external screen. EFFECT: improved thermal protection of object being heated. 1 dwgh |
