Single from directions intensification of the process drying wood is the use of energy of an electromagnetic field microwave frequencies (UHF). As a result, of the rapid increase of temperature inside timber that is characteristic for Microwave heating, appears excessive pressure couple inside wood towards pressure of the environment. This gradient the excess pressure of sharp intensifies drying process so how vapor transfer happening how through of molecular diffusion, so and by means of filtration through pores and capillaries timber.
When microwave drying of wood energy elaborated magnetron dryer camera lossless and practically instantly is delivered to water situated in wood which heated and effervescence. When this water vapor creates an overpressure and extrudes moisture principally in a liquid phase outward to surface. Process Microwave drying produced under exposure high-frequency currents (on frequency 915 or 922 MHz) and allows receive electoral self-regulating heat, because of a tangent of an angle dielectric loss wood proportional to humidity and with a decrease humidity losses energy decrease. An important advantage Microwave heating is his heat without inertia, those. Opportunity practically instant inclusion and switch off heat exposure on the material. Power inputs constitute about 20-60 kWh/m3 of conditional sawn timber.