The transverse thermal conductivity coefficients of some hardwood species grown in Turkey
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Forest Products Society
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Thermal conductivity values for ash, oak, silver wattle, poplar, and beech were measured. Thermal conductivity coefficients of the wood species were determined for radial and tangential directions at four different moisture conditions, ranging from 0 to 22 percent moisture content (MC). Equations predicting thermal conductivities of the wood species according to the MC are proposed in the tangential and radial directions. The thermal conductivity test was performed with a quick thermal conductivity meter based on the ASTM C1113-99 hot-wire method, and measurements were carried out at a room temperature of 20°C to 24°C. The effect of density and porosity on thermal conductivity was also investigated. Results showed the behavior of all wood species studied is quantitatively similar. Thermal conductivity increased with increasing MC. Tangential thermal conductivity values within the MC range of 0 to 22 percent changed from 0.089 to 0.147 W/m-K for poplar, 0.127 to 0.222 W/m-K for beech, 0.113 to 0.202 W/m-K for ash, 0.142 to 0.290 W/m-K for silver wattle, and 0.130 to 0.219 W/m-K for oak. Tangential thermal conductivity was similar to radial thermal conductivity. Radial thermal conductivity was 1.08 times tangential thermal conductivity for poplar, 1.01 times for beech, 1.06 times for ash, 0.95 times for silver wattle, and 1.03 times for oak, respectively. The data are useful when calculating the energy required to kiln-dry lumber and predicting the thermal insulating qualities of log homes made from the species. © 2009 Forest Products Society.
Açıklama
Anahtar Kelimeler
Carbon Fibers, Hardwoods, Logging, Moisture, Reinforced Plastic, Silver, Thermal Analysis, Thermal Conductivity, Acacia dealbata, Fagus, Forestry, Hardwoods, Moisture, Silver, Thermal logging, Moisture conditions, Radial direction, Radial thermal conductivity, Tangential directions, Thermal conductivity coefficient, Thermal conductivity tests, Thermal-insulating, Transverse thermal conductivity, Thermal conductivity
Kaynak
Forest Products Journal
WoS Q Değeri
Scopus Q Değeri
Q3
Cilt
59
Sayı
10
