Keywords
Xylia xylocarpa
Pyinkado
drying temperature
infrared radiation intensity
drying time
wood defect rate
infrared vacuum drying Xylia xylocarpa
gỗ Căm xe
nhiệt độ sấy
cường độ bức xạ hồng ngoại
thời gian sấy
tỷ lệ khuyết tật
sấy chân không hồng ngoại
Pyinkado
drying temperature
infrared radiation intensity
drying time
wood defect rate
infrared vacuum drying Xylia xylocarpa
gỗ Căm xe
nhiệt độ sấy
cường độ bức xạ hồng ngoại
thời gian sấy
tỷ lệ khuyết tật
sấy chân không hồng ngoại
Abstract
The study intended to determine the schedule drying for Pyinkado by infrared vacuum drying method. The experimental matrix was set up according to Box and Hunter's quadratic rotational invariant multi-objective response surface optimization method to determine the technological parameters: drying temperature and infrared radiation intensity during drying. The results show that when drying Pyinkado wood sized 20 × 50 × 500 mm, the temperature of 58.9 °C and infrared radiation intensity of 634.21 W/m2 are suitable for shortening drying time and reducing wood defect. After 27 h of drying, the wood defect rate is 11.67%, with a moisture content of 10 ± 1%, which is very suitable for wood processing and manufacturing.
References
- Stanish, M. A., Schajer, G. S., Kayihan, F. A. (1986), Mathematical model of drying for hygroscopic porous media, AICHE Journal, 32(8), 1301–1311.
- Koumoutsakos, A. (2001), Modelling radio frequency vacuum drying of wood, Doctor of Philosophy, University of British Columbia.
- Koumoutsakos, A., Avramidis, S., Hatzikiriakos Savvas, G. (2001), Radio frequency vacuum drying of wood. I, Mathematical model, drying technology, 19(1), 65–84.
- Jung, H. S., Kang, W., Eom, C. D., So, B. J. (2003), Comparision of vacuum drying characteristics of red pine square timber using different heating methods, 8th International IUFRO Wood Drying Conference.
- Kutovoy, L. Nikolaichuk and Slyesov, V. (2004), Theory of vacuum drying, Proceedings of the 14th International Drying Symposium (IDS 2004) São Paulo, Brazil, A, 266–271.
- Turner I. W., Perre P. (2004), Vacuum Drying of Wood with Radiative Heating: I. Experimental procedure, AIChE Journal, 50(1), 108–118.
- Dilek, B. (2019), Some Physical and Mechanical Properties of Dried Lumber in Vacuum with High Frequency Heating, Master’s Thesis, Duzce University, Duzce, Turkey.
- Fu, Z., Avramidis, S., Weng, X., Cai, Y., and Zhou, Y. (2019), Influence mechanism of radio frequency heating on moisture transfer and drying stress in larch boxed-heartsquare timber, Drying Technology, 37(13), 1625–1632.
- Guler, C., and Dilek, B. (2020), Investigation of high-frequency vacuum drying on physical and mechanical properties of common oak (Quercus robur) and common walnut (Juglans regia) lumber, BioRes., 15(4), 7861–7871.
- Scott Lyon, Scott Bowe, Michael Wiemann (2021), Comparing Vacuum Drying and Conventional Drying Effects on the Coloration of Hard Maple Lumber, Research Paper FPL-RP-708, Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.
- Welling, J., Aleon, D., Cont, S., Bemett, G., Esping, B., Forsen, H., Tronstad, S., Gard, W., Militz, H., Alvarez Noves, H., Sorensen, C. B., Boye, Chr., Ressel, J. (1994), The EDG Recommendation on Assessment of drying quality of Timber, 30p.
- Nguyễn Cảnh (1993), Quy hoạch thực nghiệm, Trường Đại học Bách Khoa TP. Hồ Chí Minh.
- Lê Xuân Tình (1998), Khoa học gỗ, Nxb. Nông nghiệp, Hà Nội.
- Nguyễn Đình Hưng, Lê Thu Hiền, Đỗ Văn Bản (2008), Át – lát cấu tạo, tính chất gỗ và tre Việt Nam, 1, Nxb. Nông Nghiệp, Hà Nội.