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Title: | Thermal insulation properties of green vacuum insulation panel using wood fiber as core material |
Authors: | Wang, B Li, Z Qi, X Chen, N Zeng, Q Dai, D Fan, M Rao, J |
Keywords: | wood fiber;vacuum insulation panel;bulk density;pore structure;thermal conductivity |
Issue Date: | 6-Mar-2019 |
Publisher: | NC State University. |
Citation: | Wang, B. et al. (2019) 'Thermal insulation properties of green vacuum insulation panel using wood fiber as core material', BioResources, 14 (2), pp. 3339 - 3351. doi: 10.15376/biores.14.2.3339-3351. |
Abstract: | Copyright © 2019 The Author(s). Wood fibers were prepared as core materials for a vacuum insulation panel (VIP) via a dry molding process. The morphology of the wood fibers and the microstructure, pore structure, transmittance, and thermal conductivity of the wood fiber VIP were tested. The results showed that the wood fibers had excellent thermal insulation properties and formed a porous structure by interweaving with one another. The optimum bulk density that led to a low-cost and highly thermally efficient wood fiber VIP was 180 kg/m3 to 200 kg/m3. The bulk density of the wood fiber VIP was 200 kg/m3, with a high porosity of 78%, a fine pore size of 112.8 μm, and a total pore volume of 7.0 cm3·g-1. The initial total thermal conductivity of the wood fiber VIP was 9.4 mW/(m·K) at 25 °C. The thermal conductivity of the VIP increased with increasing ambient temperature. These results were relatively good compared to the thermal insulation performance of current biomass VIPs, so the use of wood fiber as a VIP core material has broad application prospects. |
URI: | https://bura.brunel.ac.uk/handle/2438/26339 |
DOI: | https://doi.org/10.15376/biores.14.2.3339-3351 |
Other Identifiers: | ORCID iD: Mizi Fan https://orcid.org/0000-0002-6609-3110 |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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