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Wood vacuum drying test and actual use of thermal difference
Apr 19, 2016

In a real wood vacuum drying process, due to the small amounts of air, drying can be thought of as steam or superheated steam under vacuum. Existing research shows that for vacuum-superheat steam drying, both in terms of convective heat transfer coefficient of the material surface, or from the mass transfer resistance in the face of it, are better than the dry air under the same conditions, due under the same conditions of water vapor and air density, viscosity, specific heat and thermal conductivity as well as different thermodynamic parameters, which resulted in a number of differences.