employee
Voronezh, Voronezh, Russian Federation
Russian Federation
employee
Voronezh, Voronezh, Russian Federation
employee
Voronezh, Voronezh, Russian Federation
employee
Voronezh, Voronezh, Russian Federation
Voronezh, Voronezh, Russian Federation
Drevesina yabloni yavlyaetsya cenneyshim materialom i shiroko ispol'zuetsya dlya izgotovleniya razlichnyh izdeliy, v tom chisle i vysokohudozhestvennyh podelok, blagodarya svoim vysokim dekorativnym i prochnostnym svoystvam (plotnosti i tverdosti). Eta drevesina yavlyaetsya sil'nousyhayuschey i sklonna k korobleniyu i rastreskivaniyu, v svyazi s chem ee otnosyat k trudnosohnuschim porodam. Poluchenie kachestvennoy vysushennoy drevesiny vozmozhno pri ispol'zovanii tehnologii atmosfernoy sushki ili kamernoy myagkimi rezhimami, sochetaya ih s vlagoteploobrabotkoy. Poetomu na praktike bol'shoe znachenie imeyut svedeniya o kinetike i dinamike processa sushki. Dlya opisaniya processov vysyhaniya i uvlazhneniya drevesiny neobhodimo znat' velichinu ee koefficienta vlagoprovodnosti. Vlagoprovodnost' drevesiny zavisit ot mnogih faktorov: plotnosti, napravleniya toka vlagi, vlazhnosti, anatomicheskoy struktury, temperatury i dr. Odnim iz faktorov, okazyvayuschih naibol'shee vliyanie na vlagoprovodnost' drevesiny, yavlyaetsya temperatura. Pri povyshenii temperatury vlagoprovodnost' drevesiny suschestvenno vozrastaet vsledstvie vozrastaniya koefficienta diffuzii kak para, tak i vlagi, nahodyascheysya v zhidkoy faze. Koefficient vlagoprovodnosti byl opredelen eksperimental'no metodom stacionarnogo toka vlagi v tangencial'nom napravlenii dlya zabolonnoy i yadrovoy drevesiny yabloni. V rezul'tate vypolnennogo issledovaniya ustanovleno izmenenie koefficienta vlagoprovodnosti zabolonnoy i yadrovoy drevesiny yabloni v intervale vlazhnosti ot 5 do 25 % i pri temperature 20 °S i 60 °S. Opredeleno razlichie vlagoprovodnosti zabolonnoy drevesiny i yadrovoy. Poluchennye rezul'taty pozvolyat proizvesti analiticheskie raschety processov vysyhaniya i uvlazhneniya drevesiny, razrabotat' racional'nye rezhimy kamernoy sushki i rekomendacii dlya tehnologii atmosfernoy sushki.
drevesina yabloni, temperatura, plotnost', vlazhnost', yadro, zabolon', koefficient vlagoprovodnosti
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