Uniform largesized lumber drying system using mw radiation and basing on a singlewire E00 wave energy transmission line
DOI:
https://doi.org/10.15587/1729-4061.2020.210752Keywords:
microwave lumber drying, single-wire transmission line, surface wave excitation, dissipation loadAbstract
In order to generalize the possibilities of using MW radiation in industrial processes, the given paper considers and analyzes various methods of wood drying. Technological and economic advantages of wood drying in an ultra-high frequency electromagnetic field are well justified. Wood drying in the ultra-high frequency range is considered as the most optimal in contrast to traditional methods. This method is based on the penetration of electromagnetic energy into the material and converting it into heat.
The paper reveals the possibility of more effective use of MW radiation. It proposes a method for drying wood and large-sized lumber basing on a single-wire transmission line of electromagnetic energy of the surface wave. The paper also describes the advantages of the proposed method: the use of a single wire covered with a thin layer of dielectric material, the use of a vibratory system for surface wave excitation, and the use of a flat reflector. Special attention is paid to the contact area of the wire with a flat reflector since the perfection of this contact largely determines the efficiency of surface wave excitation. The conducted research estimated the influence of the parameters of the vibratory surface wave excitation system in a single waveguide on the efficiency of its excitation. The proposed vibratory excitation device allows quite a simple step-by-step adjustment of the thermal power in the irradiated object.
The design of the dissipation load for surface wave lines has been successfully tested during the laboratory works where certain ways of unclaimed electromagnetic energy utilization were suggested.
Following the results of the conducted research, we proposed a physical model of a system for microwave drying of wood and large-sized lumberReferences
- Rudnev, V., Loveless, D., Cook, R. L. (2017). Handbook of Induction Heating. CRC Press, 772. doi: https://doi.org/10.1201/9781315117485
- Cserta, E., Hegedűs, G., Németh, R. (2012). Evolution of temperature and moisture profiles of wood exposed to infrared radiation. BioResources, 7 (4). doi: https://doi.org/10.15376/biores.7.4.5304-5311
- Torgovnikov, G., Vinden, P. (2010). Microwave Wood Modification Technology and Its Applications. Forest Products Journal, 60 (2), 173–182. doi: https://doi.org/10.13073/0015-7473-60.2.173
- Pantea, M., Laza Bulc, M., Grava, A., Silaghi, A. (2012). The Influence of microwaves on wood drying and moisture migration inside. Journal of Electrical and Electronics Engineering, 5 (2), 93–96.
- Kadem, S., Younsi, R., Lachemet, A. (2016). Computational analysis of heat and mass transfer during microwave drying of timber. Thermal Science, 20 (5), 1447–1455. doi: https://doi.org/10.2298/tsci140109055k
- Ananias, R. A., Ulloa, J., Elustondo, D. M., Salinas, C., Rebolledo, P., Fuentes, C. (2012). Energy Consumption in Industrial Drying of Radiata Pine. Drying Technology, 30 (7), 774–779. doi: https://doi.org/10.1080/07373937.2012.663029
- Li, Z. Y., Wang, R. F., Kudra, T. (2011). Uniformity Issue in Microwave Drying. Drying Technology, 29 (6), 652–660. doi: https://doi.org/10.1080/07373937.2010.521963
- Aichholzer, A., Schuberth, C., Mayer, H., Arthaber, H. (2017). Microwave testing of moist and oven-dry wood to evaluate grain angle, density, moisture content and the dielectric constant of spruce from 8 GHz to 12 GHz. European Journal of Wood and Wood Products, 76 (1), 89–103. doi: https://doi.org/10.1007/s00107-017-1203-x
- Ivanov, I., Tikhonov, V., Pronina, O., (2015). Microwave installation for disinsection of wood. Electronic scientific & practical journal «Modern technics and technologies», 8 (48). Available at: http://technology.snauka.ru/2015/08/7713
- Koiš, V., Dömény, J., Tippner, J. (2014). Microwave Device for Continuous Modification of Wood. BioResources, 9 (2). doi: https://doi.org/10.15376/biores.9.2.3025-3037
- Goreshnev, M. A., Kazarin, A. N., Lopatin, V. V., Sekisov, F. G., Smerdov, O. V. (2013). Combined Timber Drying Method. Journal of Engineering Physics and Thermophysics, 86 (2), 336–339. doi: https://doi.org/10.1007/s10891-013-0838-7
- Torres, S. sandoval, Jomaa, W., Puiggali, J.-R., Avramidis, S. (2011). Multiphysics modeling of vacuum drying of wood. Applied Mathematical Modelling, 35 (10), 5006–5016. doi: https://doi.org/10.1016/j.apm.2011.04.011
- He, Z., Qian, J., Qu, L., Wang, Z., Yi, S. (2019). Simulation of moisture transfer during wood vacuum drying. Results in Physics, 12, 1299–1303. doi: https://doi.org/10.1016/j.rinp.2019.01.017
- Harris, G., Brodie, G., Ozarska, B., Taube, A. (2011). Design of a Microwave Chamber for the Purpose of Drying of Wood Components for Furniture. Transactions of the ASABE, 54 (1), 363–368. doi: https://doi.org/10.13031/2013.36246
- Goubau, G. (1950). Surface Waves and Their Application to Transmission Lines. Journal of Applied Physics, 21 (11), 1119–1128. doi: https://doi.org/10.1063/1.1699553
- Bhatnagar, P. S. (1976). Surface Wave Transmission Lines. IETE Journal of Education, 17 (1), 24–31. doi: https://doi.org/10.1080/09747338.1976.11450133
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Copyright (c) 2020 Ekaterina Ritter, Vladimir Kismereshkin, Jacek Cieslik, Alexey Savostin, Dmitry Ritter, Aizhan Aytulina, Ildar Kasimov, Bibigul Bekkozhina
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