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在瑞典本地采购的生物基绝缘材料的高热性能和性能
Oskar Ranefjärd1, Paulien B Strandberg-de Bruijn1, Lars Wadsö1
1Department of Building and Environmental Technology, Lund University, 221 00 Lund, Sweden.
Materials (Basel, Switzerland)
|May 11, 2024
概括
生物基绝缘材料,如鱼草,草和木纤维,显示出不同的水分特性和比所述更高的导热率. 它们在建筑元件中的绝缘能力需要的不仅仅是导热率数据.
科学领域:
- 建筑科学 建筑科学
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
背景情况:
- 对可持续,可再生建筑材料的需求不断增长.
- 生物基绝缘为传统材料提供了一个环保的替代品.
- 生物基绝缘的关键考虑因素包括更高的导热率和高度性质.
研究的目的:
- 评估鱼草,草和木纤维绝缘的湿热性能.
- 将这些生物基材料与传统的石头羊毛进行比较.
- 在模拟的建筑元件条件下评估它们的性能.
主要方法:
- 动态蒸汽吸附 (DVS) 对于水分特性.
- 过渡平面源 (TPS) 和吸附热量计用于材料特性.
- 热箱实验用于测试隔热能力.
主要成果:
- 与石头羊毛相比,生物基材料表现出明显不同的吸附行为.
- 测量的导热率超过了制造商声明.
- 热箱测试显示,绝缘能力不仅仅是从导热率来预测的.
结论:
- 生物基绝缘材料具有独特的高热特性.
- 准确的性能预测需要考虑湿度相互作用以及导热性.
- 研究数据支持生物基材料性能分析的数值模拟.
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