Investigation of Thermal and Sound Insulation Properties of Sapwood and Heartwood of Willow Tree

Musa Kaya; Ramazan Bülbül; Mutlu Türk

Authors

Musa Kaya Atatürk Vocational and Technical Anatolian High School Furniture and İnterior Design 25100 Erzurum, Türkiye https://orcid.org/0000-0002-5955-7378
Ramazan Bülbül Department of Wood Products Industrial Engineering, Gazi University, 06560 Yenimahalle/Ankara https://orcid.org/0000-0003-4760-9166
Mutlu Türk Efeler Mimar Sinan Vocational and Technical Anatolian High School Furniture and İnterior Design Aydın/ Türkiye https://orcid.org/0000-0002-8650-1302

Keywords:

Willow wood, Heartwood and sapwood, Thermal transmittance coefficient, Sound absorption coefficient

Abstract

The heat and sound insulation properties of the heartwood and sapwood of willow (Salix alba L.) were investigated. Based on the experimental results, it was determined that the density value of the heartwood of the willow tree was higher than that of sapwood, while the moisture value was lower in the sapwood. The thermal conductivity coefficient was 0.090 W/m.K in sapwood and 0.103 W/m.K in heartwood; thermal transmittance coefficient was 3.954 W/m².K in sapwood and 4.738 W/m².K in heartwood. The sound absorption coefficient was highest in sapwood at 1000 Hz frequency level with 0.37, while the highest in heartwood was 0.50 at 800 Hz frequency level. These results would be useful in willow wood structural applications.

Investigation of Thermal and Sound Insulation Properties of Sapwood and Heartwood of Willow Tree

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