DOI QR코드

DOI QR Code

Investigation of Sound Absorption Ability of Hinoki Cypress (Chamaecyparis obtusa) Cubes

  • JANG, Eun-Suk (Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University)
  • 투고 : 2022.04.27
  • 심사 : 2022.09.08
  • 발행 : 2022.09.25

초록

Today, commercialized Hinoki cypress cubes are used for fragrance, humidification, and pillows in Korea. In this study, the sound absorption ability of Hinoki cypress (Chamaecyparis obtusa) cubes was examined. The three groups of Hinoki cypress cubes were prepared depending on their dimension (L: 9 × 9 × 9, M: 7 × 7 × 7, S: 4 × 4 × 4 mm). Their sound absorption coefficient was examined after filling 6, 8, 10, and 12 cm height in impedance tubes, respectively. Overall, the sound absorption ability depending on dimension was superior in the M group compared to the L and S groups. Also, as the filling height increased, the sound absorption capacity increased. In sum, noise reduction coefficients (NRC) of all Hinoki cypress cubes were 0.41-0.59. Thus, this research found that Hinoki cypress cubes have a sound-absorbing function.

키워드

과제정보

This research was supported by a grant from the Basic Science Research Program of the National Research Foundation of Korea (NRF), funded by the Ministry of Education (NRF-2019R1I1A3A02059471). It was also supported by a grant from the international cooperation program framework managed by the NRF (NRF-2020K2 A9A2A08000181). I am also thankful for the ''Business Startup Incubator Support Program'' supported by the Ministry of Education and the National Research Foun- dation of Korea.

참고문헌

  1. Arenas, J.P., Crocker, M.J. 2010. Recent trends in porous sound-absorbing materials. Sound and Vibration 44(7): 12-18.
  2. Bellassen, V., Luyssaert, S. 2014. Carbon sequestration: Managing forests in uncertain times. Nature 506 (7487): 153-155. https://doi.org/10.1038/506153a
  3. Borrell, J.M.G., Sanchis, E.J., Alcaraz, J.S., Belda, I.M. 2020. Sustainable sound absorbers from fruit stones waste. Applied Acoustics 161: 107174. https://doi.org/10.1016/j.apacoust.2019.107174
  4. Brunet-Navarro, P., Jochheim, H., Kroiher, F., Muys, B. 2018. Effect of cascade use on the carbon balance of the German and European wood sectors. Journal of Cleaner Production 170: 137-146. https://doi.org/10.1016/j.jclepro.2017.09.135
  5. Dirna, F.C., Rahayu, I., Zaini, L.H., Darmawan, W., Prihatini, E. 2020. Improvement of fast-growing wood species characteristics by MEG and nano SiO2 impregnation. Journal of the Korean Wood Science and Technology 48(1): 41-49. https://doi.org/10.5658/WOOD.2020.48.1.41
  6. Fujimoto, Y., Tanaka, H., Morita, H., Kang, S.G. 2021. Development of ply-lam composed of Japanese cypress laminae and Korean larch plywood. Journal of the Korean Wood Science and Technology 49(1): 57-66. https://doi.org/10.5658/WOOD.2021.49.1.57
  7. Hwang, J.W., Oh, S.W. 2022. Formaldehyde deodorization effect and far-infrared emission characteristics of ceramics prepared with sawdust, risk husk, and charcoal: Effect of material mixing ratio. Journal of the Korean Wood Science and Technology 50(2): 104-112. https://doi.org/10.5658/WOOD.2022.50.2.104
  8. Ikei, H., Song, C., Miyazaki, Y. 2018. Physiological effects of touching Hinoki cypress (Chamaecyparis obtusa). Journal of Wood Science 64(3): 226-236. https://doi.org/10.1007/s10086-017-1691-7
  9. ISO 10534-2. 2001. Acoustics-Determination of Sound Absorption Coefficient and Impedance in Impedance Tubes-Part 2 Transfer-function Method. International Organization for Standardization (ISO), Geneva, Switzerland.
  10. ISO 11654. 1997. Acoustics - Sound Absorbers for Use in Buildings - Rating of Sound Absorption. International Organization for Standardization (ISO), Geneva, Switzerland.
  11. Jang, E.S. 2022a. Experimental investigation of the sound absorption capability of wood pellets as an eco-friendly material. Journal of the Korean Wood Science and Technology 50(2): 126-133. https://doi.org/10.5658/WOOD.2022.50.2.126
  12. Jang, E.S. 2022b. Peanut shells as an environmentally beneficial sound-absorbing material. Journal of the Korean Wood Science and Technology 50(3): 179-185. https://doi.org/10.5658/WOOD.2022.50.3.179
  13. Jang, E.S. 2022c. Use of pine (Pinus densiflora) pollen cones as an environmentally friendly sound-absorbing material. Journal of the Korean Wood Science and Technology 50(3): 186-192. https://doi.org/10.5658/WOOD.2022.50.3.186
  14. Jang, E.S., Kang, C.W. 2021a. Delignification effects on Indonesian Momala (Homalium foetidum) and Korean Red Toon (Toona sinensis) hardwood pore structure and sound absorption capabilities. Materials 14(18): 5215. https://doi.org/10.3390/ma14185215
  15. Jang, E.S., Kang, C.W. 2021b. Effect of porous traits of hardwoods cross-section on sound absorption performance -Focus on 6 species of Korean hardwoods. Wood and Fiber Science 53(4): 260-272. https://doi.org/10.22382/wfs-2021-26
  16. Jang, E.S., Kang, C.W. 2021c. Investigation of sound absorption properties of heat-treated Indonesian Momala (Homalium foetidum (Roxb.) Benth.) and Korean Red Toon (Toona sinensis (A. Juss.) M. Roem.) cross sections. Forests 12(11): 1447. https://doi.org/10.3390/f12111447
  17. Jang, E.S., Kang, C.W. 2021d. The pore structure and sound absorption capabilities of Homalium (Homalium foetidum) and jelutong (Dyera costulata). Wood Science and Technology 56(1): 323-344. https://doi.org/10.1007/s00226-021-01336-z
  18. Jang, E.S., Kang, C.W. 2021e. Sound absorption characteristics of three species (binuang, balsa and paulownia) of low density hardwood. Holzforschung 75(12): 1115-1124. https://doi.org/10.1515/hf-2021-0049
  19. Jang, E.S., Kang, C.W. 2021f. The use of ring-porous East Asian ash (Fraxinus japonica (Thunb.) Steud.) and oak (Quercus spp.) cross-sections as eco-friendly resonance-absorbing materials for building. Wood Material Science & Engineering. https://doi.org/10.1080/17480272.2021.1987518
  20. Jang, E.S., Kang, C.W. 2022a. Change in sound absorption capability on thermally modified transverse and radial planes of Indonesian Homalium foetidum. BioResources 17(3): 5234-5242. https://doi.org/10.15376/biores.17.3.5234-5242
  21. Jang, E.S., Kang, C.W. 2022b. Influence of surface finishing of hardwood cross-section on sound absorption performance. BioResources 17(2): 2874-2883. https://doi.org/10.15376/biores.17.2.2874-2883
  22. Jang, E.S., Kang, C.W. 2022c. Why the sound-absorbing performance of heartwood and sapwood differs in yellow poplar (Liriodendron tulipifera) cross-sections? Wood Research 67(3): 372-382. https://doi.org/10.37763/wr.1336-4561/67.3.372382
  23. Jang, E.S., Kang, C.W., Jang, S.S. 2018a. Comparison of the Mercury intrusion porosimerty, capillary flow porometry and gas permeability of eleven species of Korean wood. Journal of the Korean Wood Science and Technology 46(6): 681-691. https://doi.org/10.5658/WOOD.2018.46.6.681
  24. Jang, E.S., Kang, C.W., Kang, H.Y., Jang, S.S. 2018b. Sound absorption property of traditional Korean natural wallpaper (Hanji). Journal of the Korean Wood Science and Technology 46(6): 703-712. https://doi.org/10.5658/WOOD.2018.46.6.703
  25. Jang, E.S., Yuk, J.H., Kang, C.W. 2020. An experimental study on change of gas permeability depending on pore structures in three species (Hinoki, Douglas fir, and Hemlock) of softwood. Journal of Wood Science 66(1): 78. https://doi.org/10.1186/s10086-020-01925-9
  26. Kang, C.W., Jang, E.S., Jang, S.S., Kang, H.Y., Kang, S.G., Oh, S.C. 2019. Sound absorption rate and sound transmission loss of wood bark particle. Journal of the Korean Wood Science and Technology 47(4): 425-441. https://doi.org/10.5658/WOOD.2019.47.4.425
  27. Kim, J.G., Kang, S.G., Mostafiz, M.M., Lee, J.M., Lee, K.Y., Hwang, T.K., Lim, J.T., Kim, S.Y., Lee, W.H. 2020. Insect repellency and crop productivity of essential oil films. Journal of the Korean Wood Science and Technology 48(1): 95-106. https://doi.org/10.5658/WOOD.2020.48.1.95
  28. Kim, J.Y., Kim, B.R. 2021. Hygroscopicity and ultraviolet (UV) deterioration characteristics of finished woods. Journal of the Korean Wood Science and Technology 49(5): 471-481. https://doi.org/10.5658/WOOD.2021.49.5.471
  29. Kim, Y., Lee, S. 2017. Sound absorption performance of noise barrier according to single number rating methods. Transactions of the Korean Society for Noise and Vibration Engineering 27(2): 243-250. https://doi.org/10.5050/KSNVE.2017.27.2.243
  30. Korean Standards Association. 2016. Determination of Moisture Content of Wood. KS F 2199. Korean Standards Association, Seoul, Korea.
  31. Lee, M., Park, S.B., Lee, S.M. 2016. Comparison of moisture absorption/desorption properties of carbonized boards made from wood-based panels. Journal of the Korean Wood Science and Technology 44(3): 424-429. https://doi.org/10.5658/WOOD.2016.44.3.424
  32. Lee, S.H., Lee, Y.J., Oh, J.H., Jang, C.S., Hong, S.M. 2017. An Activation Research on the 6th Industrialization of Forestry. Gyeonggi Research Institute, Suwon, Korea.
  33. Li, Q., Kobayashi, M., Wakayama, Y., Inagaki, H., Katsumata, M., Hirata, Y., Hirata, K., Shimizu, T., Kawada, T., Park, B.J., Ohira, T., Kagawa T., Miyazaki, Y. 2009. Effect of phytoncide from trees on human natural killer cell function. International Journal of Immunopathology and Pharmacology 22 (4): 951-959. https://doi.org/10.1177/039463200902200410
  34. Mokhirev, A., Rukomojnikov, K., Gerasimova, M., Medvedev, S. 2021. Design of logging infrastructure in consideration of the dynamically changing environment. Journal of the Korean Wood Science and Technology 49(3): 254-266. https://doi.org/10.5658/WOOD.2021.49.3.254
  35. Park, H.J., Jo, S.U. 2020. Evaluation of physical, mechanical properties and pollutant emissions of wood-magnesium laminated board (WML board) for interior finishing materials. Journal of the Korean Wood Science and Technology 48(1): 86-94. https://doi.org/10.5658/WOOD.2020.48.1.86
  36. Park, K.C., Kim, B., Park, H., Park, S.Y. 2022. Peracetic acid treatment as an effective method to protect wood discoloration by UV light. Journal of the Korean Wood Science and Technology 50(4): 283-298. https://doi.org/10.5658/WOOD.2022.50.4.283
  37. Park, S., Han, Y., Son, D.W. 2020. Flame retardancy of wood products by spreading concentration and impregnation time of flame retardant. Journal of the Korean Wood Science and Technology 48(4): 417-430. https://doi.org/10.5658/WOOD.2020.48.4.417
  38. Peng, L., Liu, M., Wang, D., Song, B. 2018. Sound absorption properties of wooden perforated plates. Wood Research 63(4): 559-572.
  39. Schulz, H.R., Acosta, A.P., Barbosa, K.T., Junior, M.A.P.S., Gallio, E., Delucis, R.A., Gatto, D.A. 2021. Chemical, mechanical, thermal, and colorimetric features of the thermally treated Eucalyptus grandis wood planted in Brazil. Journal of the Korean Wood Science and Technology 49(3): 226-233. https://doi.org/10.5658/WOOD.2021.49.3.226
  40. Thilagavathi, G., Neela Krishnan, S., Muthukumar, N., Krishnan, S. 2018. Investigations on sound absorption properties of luffa fibrous mats. Journal of Natural Fibers 15(3): 445-451. https://doi.org/10.1080/15440478.2017.1349016
  41. Yang, J., Choi, W.S., Kim, J.W., Lee, S.S., Park, M.J. 2019. Anti-inflammatory effect of essential oils extracted from wood of four coniferous tree species. Journal of the Korean Wood Science and Technology 47(6): 674-691. https://doi.org/10.5658/WOOD.2019.47.6.674
  42. Yang, S.M., Lee, H.J., Kang, S.G. 2020. Analysis of heat transfer characteristics by materials in closed conditions using acrylic hemisphere (I): Comparison of interior finishing materials. Journal of the Korean Wood Science and Technology 48(2): 217-230. https://doi.org/10.5658/WOOD.2020.48.2.217
  43. Yeon, S., Park, S.Y., Kim, J.H., Kim, J.C., Yang, S.Y., Yeo, H., Kwon, O., Choi, I.G. 2019. Effect of organic solvent extractives on Korean softwoods classification using near-infrared spectroscopy. Journal of the Korean Wood Science and Technology 47(4): 509-518. https://doi.org/10.5658/WOOD.2019.47.4.509
  44. Yun, J., Shin, H.C., Hwang, W.J., Yoon, S.M., Kim, Y.S. 2021. Identification of sapstain fungi on weathered wooden surfaces of buildings at Jangheung and Jeju Island. Journal of the Korean Wood Science and Technology 49(6): 591-601. https://doi.org/10.5658/WOOD.2021.49.6.591