Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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A Study on the Distribution and Time Dependent Change of Wood Temperature by Solar Radiation

  • Xu, Hui Lan (Department of Forest Products and Technology, College of Agriculture, Chonnam National University) ;
  • Kang, Wook (Department of Forest Products and Technology, College of Agriculture, Chonnam National University) ;
  • Chung, Woo Yang (Department of Forest Products and Technology, College of Agriculture, Chonnam National University)
  • Received : 2008.06.15
  • Accepted : 2009.02.23
  • Published : 2009.03.25
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Abstract

The fluctuation of physical properties in wood or wood composites is an important subject when the materials in building and construction. Sorption and desorption occur in wood when exposed to the open air, and the temperature distribution in wood can fluctuate as a result of changes in environmental temperature, solar radiation, humidity, and wind velocity. In this study, the temperature difference and fluctuation caused by outdoor environment among different wood species were analyzed using a numerical method. The effect on the process of heat transfer in wood caused by environmental factors was investigated using 1-dimensional partial differential equation with real boundary and initial conditions. The experimental data have been used to check the accuracy of programming code. Through analysis, it was found out that density and moisture content have a negative effect on thermal diffusivity of wood.

Keywords

Acknowledgement

Supported by : Korean Ministry of Education, Science and Technology, Ministry of Education

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