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Comparative Study of Thermal Conductivity and Physical Properties of Typha Insulation Sheets with Different Piece Sizes |
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| รหัสดีโอไอ | |
| Creator | Noppawan Semvimol |
| Title | Comparative Study of Thermal Conductivity and Physical Properties of Typha Insulation Sheets with Different Piece Sizes |
| Contributor | Kunawit Suttipathip, Onanong Phewnil, Kittichai Duangmal |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2568 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 18 |
| Journal No. | Special |
| Page no. | 61-68 |
| Keyword | Thermal Conductivity, Natural Insulation Sheet, Waste Utilization, Typha |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | This research aims to study the properties of thermal insulation sheet made from Typhausing different sizes of material pieces. Fresh Typha were shredded and dried, then sorted into 3sizes: short pieces (< 5 mm), medium pieces (5 - 10 mm), and long pieces (> 10 mm). For eachinsulation sample was produced using 30 g of dried Typha mixed with 20 g of natural rubberlatex (Typha : latex ratio of 1.5:1 w/w). The samples were formed using a hot-pressing methodto make 10.0 cm insulation square sheets, with a thickness of 1 cm. The physical properties wereinvestigated by the rate of water absorption and swelling. Thermal conductivity was measuredusing a heat conduction model HC-074-200, following the ASTM C518 standard. The studyfound that the short and medium Typha pieces were simple to form, with a consistent density,and bonded well. In terms of physical properties, the long pieces absorbed water at the lowestrate, followed by the short and medium pieces, respectively. All sample sizes show a more than100% swelling rate, but they could all be submerged in water for a day without disintegrating.All sizes had good thermal conductivity, according to the thermal insulation testing results.The medium pieces had the lowest thermal conductivity (0.0431 W/m.K), followed by thelong pieces (0.0453 W/m.K) and the short pieces (0.0539 W/m.K). Based on the analysis ofboth the thermal and physical properties, it can be concluded that the Typha insulation withmedium-sized pieces had the lowest thermal conductivity and good formability, suitable to useas natural insulation material for further development as thermal insulation. |
