Drying Characteristics of Three Selected Nigerian Indigenous Wood Species Using Solar Kiln Dryer and Air Drying Shed

American Journal of Science and Technology

OyebamijiW. O.¹  OwoyemiJ. M.¹  AladejanaJ. T.¹ 

[1] Department of Forestry and Wood Technology, Federal University of Technology, Akure, Nigeria.

关键词: Moisture Content;    Porosity;    Density;    Volumetric Shrinkage;    Temperature;   

学科分类：工程和技术（综合）

来源: AASCIT

【 摘 要 】

Drying characteristics of three selected indigenous wood species were examined. Daily temperature and relative humidity in solar kiln and air dry shed were taken to determine the influence of the drying factors on the moisture content, density, volumetric shrinkage of Alstonia boonei (Ahun), Ricinodendron heudelotii (Erimado) and Guarea cedrata (Olofun) after drying for 41 days. Weights of the three wood species were taken at one day interval to determine percentage weight loss due to drying. Guarea cedrata had the lowest initial moisture content of 64.6 % and the highest density of 683 kg/m3, Alstonia boonei had the medium density of 569 kg/m3 and the initial moisture content of 82.26 % while Ricinodendron heudelotii had the lowest density of 324 kg/m3 and highest initial moisture content of 368.5 %. Ricinodendron heudelotii had the highest volumetric shrinkage of 12.5 %, Alstonia boonei of volumetric shrinkage (9.7 %) and Guarea cedrata had the lowest value for the volumetric shrinkage (4.5 %) in the solar kiln. The densities of the three wood species were found to affect the drying characteristics of the wood. The temperature and relative humidity difference enhances the drying characteristic of the wood species inside the drying media.

【 授权许可】

Unknown