This article presents the results of research work on a modernized solar drying plantwith indirect heat pipes and natural air ventilation. The dependences of temperatures, moisturecontent of the steam-air mixture and on the surface of the dried grapes, the drying speed on the timeof the drying process were established, and were also compared with the results of the kinetics of thegrape drying process, obtained in a direct-acting solar drying installation.The complete physical characterization of the structural model and its elements is establishedby semi-empirical calculation methods and calculated on the basis of relevant concepts andexperimental results.The high drying temperature of the hard layer (crust formation) that forms on the surface makesit difficult for liquid that has not yet been removed from the inside to escape and prevents drying.This problem was solved by changing the drying conditions and were implemented through a solardrying installation with a heat pipe and natural air convection in the solar collector, with thefollowing efficiency factors: heat pipes 34%, heat exchangers 25% and drying cabinet 11%.Based on a comparative analysis of the results of experimental studies, it was found that thesize of the dried grapes (capillaries) does not matter at the initial stage of drying, while at later stagesit affects the drying rate. Also, due to the high drying temperature, the hard layer (crust formation)that forms on the surface makes it difficult for the liquid that has not yet been removed from the insideto escape and prevents drying. The formation of a crust should be avoided as this affects the dryingspeed and quality of the product to be dried. This problem can be solved by monitoring or changingthe drying conditions. Such a problem can be solved by monitoring or changing the drying conditions.In this scientific work, the drying conditions were undoubtedly realized by installing a heat pipe inthe solar collector.
| Mualliflar | Mirzayev, Shavkat, Ibragimov, Salim, Kodirov, Jobir, Khamraev, Sardor |
|---|---|
| Jurnal | Инновацион технологиялар |
| Nashr sanasi | 2024-12-30 |
| Jild | 55 |
| Son | 03 |
| Til | Ingliz |
drying chamber, natural ventilation, temperature, convection, drying speed, grapes, collector, solar radiation., cушильная камера, естественная вентиляция, температура, конвекция, скорость сушки, виноград, коллектор, cолнечная радиация., quritish kamerasi, tabiiy shamollatish, harorat, konveksiya, quritish tezligi, uzum, kollektor, quyosh radiatsiyasi.
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