回收的抛复合材料用于建筑物中的被动冷却应用
Gyorgy Thalmaier1, Nicoleta Cobîrzan2, Lucian V Fechete-Tutunaru3
1Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 103 Muncii blv., 400641 Cluj-Napoca, Romania.
Materials (Basel, Switzerland)
|February 26, 2025
概括
研究人员使用石和回收开发了一种新的复合相变材料. 这种增强材料提高了导热性,减少了全球变暖潜力,为热能存储提供了一个环保的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续工程 可持续工程
- 热力工程是热力工程中的一个.
背景情况:
- 换相材料 (PCM) 对于热能储存至关重要.
- 提高PCM的导热性对于高效的传热至关重要.
- 回收材料在复合材料开发中提供了可持续的替代品.
研究的目的:
- 开发一种新的复合相变材料 (PCM),使用石和回收切割芯片.
- 为了提高的导热性,同时最大限度地减少材料的使用.
- 评估开发的复合PCM的热性能和环境影响.
主要方法:
- 制造具有优化切割芯片体积分数 (~15%) 的-复合PCM.
- 热性质的表征,包括隐性热容量和热导率.
- 用于热调节的复合PCM嵌入洞的实验测试.
- 评估全球变暖潜力 (CO2eq) 用于环境影响评估.
主要成果:
- 复合PCM在热导率上表现出236%的增长,与纯相比.
- 潜热容量减少了20%,活动温度范围为33-65°C.
- 将其融入洞中可以将每日温度波动降低高达3°C.
- 复合材料的全球变暖潜力 (CO2eq) 比其他回收复合材料低.
结论:
- 开发的合金复合材料PCM有效地提高了导热率,同时保持了显著的潜热容量.
- 复合材料对建筑物中的被动热调节有希望,减少白天温度变化.
- 使用回收的切割芯片为PCM开发提供了一种环境可持续的方法,可以减少碳足迹.
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