Preliminary Research on Critical Dimension of Wood under Vacuum Drying

Theobjectiveofthisexperimentistoexplorehowthethicknessandthelengthofthespecimenaffectthevacuumdryingrate,andtoexplorewhetherthedifferentlengthsofspecimenshavedifferentvacuumdryingrates.Theresultsareasfollows:inacertainrangeofdimensionandpressure,thelengthofspecimenshasmoreeffectonthevacuumdryingratethanthethickness.Whentheratioofendareatovolumeislessthan0.10cm-1,thedryingratedecreasesexponentiallywiththeincreasingofthelength.