ISSN: 2375-3846
American Journal of Science and Technology  
Manuscript Information
 
 
Drying Characteristics of Three Selected Nigerian Indigenous Wood Species Using Solar Kiln Dryer and Air Drying Shed
American Journal of Science and Technology
Vol.2 , No. 4, Publication Date: Jun. 12, 2015, Page: 176-182
1936 Views Since June 12, 2015, 1575 Downloads Since Jun. 12, 2015
 
 
Authors
 
[1]    

Owoyemi J. M., Department of Forestry and Wood Technology, Federal University of Technology, Akure, Nigeria.

[2]    

Oyebamiji W. O., Department of Forestry and Wood Technology, Federal University of Technology, Akure, Nigeria.

[3]    

Aladejana J. T., Department of Forestry and Wood Technology, Federal University of Technology, Akure, Nigeria.

 
Abstract
 

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.


Keywords
 

Moisture Content, Porosity, Density, Volumetric Shrinkage, Temperature


Reference
 
[01]    

Simpson WT. 1993. Specific Gravity, Moisture Content and Density Relationships for Wood U.S. Department of Agriculture Gen. Tech. Rep. FPL–GTR–76. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.

[02]    

Joseph D, Eugene M.W & Simpson WT. 2000.Drying Hardwood Lumber. Gen. Tech. Rep. FPL-GTR-118. Madison, WI: United state department of Agriculture, Forest service, forest products laboratory. 138p.

[03]    

Rowell RM. 2004. Chemical modification. Solid Wood Processing. Elsevier Ltd. 1269-1274

[04]    

Walker JCF, Butterfield BG, Langrish TAG, Harris JM & Uprichard JM. 1993. Primary Wood Processing: Principles and Practice. Chapman & Hall, London. 595p.

[05]    

Nyle ME. 2006. Nyle drying kilns system, 72 Cebtre street Brewer, 04412. 18p.

[06]    

Rajendra KC. 2007. An introduction to wood drying. Forestry Nepal

[07]    

Owoyemi JM, Olaniran OS & Aliyu DI. 2013. Effect of Density on the Natural Resistance of Ten Selected Nigeria Wood Species to Subterranean Termites. Proligno Journal. Vol; 9.Pg 32-40.

[08]    

Hoadley RB. 2000. Understanding Wood: A Craftman’s Guide to Wood Technology. 2nd. ed. Taunton Press. ISBN 1-56158 358-8

[09]    

Desch HE & Dinwoodie JM. 1996. Timber: Structure, Properties, Conversion and Use. 7th ed. Macmillan Press Ltd, London. 306p.

[10]    

Siau JF. 1984. Transport Process in Wood, Springer- Verlage, Berlin-New York. 72p

[11]    

Sowunmi OO. 2015. Performance of Solar Kiln Dryer on Two Selected Wood Species in Akure, Ondo State, Nigeria. Bachelor degree project, Federal University of Technology, Akure, Nigeria





 
  Join Us
 
  Join as Reviewer
 
  Join Editorial Board
 
share:
 
 
Submission
 
 
Membership