Impulse drying of african teak, merbau and wenge wood blanks in a convection drying chamber

Abstract

A review of literature sources on the physical and mechanical properties of iroko, merbau and wenge wood is given. The places of growth of these breeds are indicated. The description of the varieties of properties of the rocks under consideration, depending on the distribution area, is presented. A review of literature sources on the modes and parameters of drying of iroko, merbau and wenge wood blanks is presented. The drying modes of iroko, merbau and wenge wood blanks are considered, the parameters of which depend on the current moisture content of the wood and the principles of constructing pulse drying modes. The modes of pulse drying of iroko wood blanks with a thickness of 25 mm, merbau with a thickness of 25 mm and wenge with a thickness of 45 mm are determined. It is shown that the use of pulsed drying modes of workpieces can reduce electricity consumption and improve product quality.