不同生物基绝热材料的导热系数

Sergej Medved, E. Tudor, M. Barbu, T. Young
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引用次数: 1

摘要

为了实现零浪费目标和可持续性,必须明智地使用原材料,尤其是来自自然的原材料,特别是木材,这意味着必须充分利用资源的潜力。由于木材工业与高强度和相对大量的残留物有关,这些残留物应该用于生产有用的产品,否则它们很容易被归类为废物,然后用作能源。为了为木屑、木屑颗粒和树皮等木材残留物提供一种可能的解决方案,我们研究了使用木材和树皮残留物作为成分生产目标厚度为40mm、目标密度为0.2g·cm-3的单层隔热板的可能性。使用稳态原理在三种不同的温度设置下测定热导率。平均导热系数在49 mW·m-1·K-1和74 mW·m-1·K-1之间。最高值是在树皮制成的木板上测得的,树皮的密度也最高(0291 g·cm-3),而云杉木颗粒制成的木板的热导率最低。
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Thermal conductivity of different bio-based insulation materials
To achieve the zero-waste goal as well as sustainability, the use of the raw materials, especially those from nature, and wood in particular, has to be smart, meaning that the resource has to be used to its full potential. Since wood-based industry is associated with high intensity and the generation of a relatively large amount of residues, those residues should be used for the production of useful products, otherwise they will easily be classified as waste and afterwards used as a source of energy. To present a possible solution for wood residues like wood chips, wood particles and bark, we investigated the possibility of using wood and bark residues as constituents for the production of single layer insulation panel with a target thickness of 40 mm and target density of 0.2 g·cm-3. Thermal conductivity was determined using the steady state principle at three different temperature settings. The average thermal conductivities were determined between 49 mW·m-1·K-1 and 74 mW·m-1·K-1. The highest values were determined at boards made from bark, which also had the highest density (0,291 g·cm-3), while the lowest thermal conductivity was observed for boards made from spruce wood particles.
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来源期刊
Les
Les
自引率
0.00%
发文量
10
审稿时长
4 weeks
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