3D打印用于建筑外的能源优化 - 实验结果
Tullio de Rubeis1, Annamaria Ciccozzi2, Domenica Paoletti2
1Depertment of Civil, Construction-Architectural and Environmental Engineering (DICEAA), University of L'Aquila, L'Aquila, Italy.
Heliyon
|May 28, 2024
概括
研究人员研究了3D打印的块,以提高建筑的能源效率. 优化内部几何形状和添加隔壁显著减少了传热,降低了传热率 (U值).
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:
- 建筑行业对全球能源消耗做出了重大贡献,通过建筑外的热量损失是主要关注的问题.
- 传统的建筑方法在技术上取得了有限的进步,主要依赖于手工劳动.
- 增材制造 (三维打印) 提供了建筑创新的潜力,但其在建筑元件中的热性能需要进一步研究.
研究的目的:
- 分析3D打印块的传热特性,以提高其热性能.
- 研究内部几何形状和空气间隙对3D打印建筑部件中最小化热流的影响.
- 弥合建筑行业3D打印应用的热效率方面的知识差距.
主要方法:
- 使用可回收塑料设计和制造3D打印的块,具有不同的内部六角细胞结构.
- 使用定制设计的设置进行实验性评估,包括热盒方法,热流量计传感器和红外温度计.
- 对于没有隔壁,水平隔壁和分层蜂巢结构的块的热传导率 (U值) 的比较.
主要成果:
- 在3D打印的块中包含水平隔壁导致热传导率 (U值) 的降低.
- 随着水平隔墙的增加,U值减少了高达11.5%.
- 带有水平隔壁的蜂巢结构 (区块3) 实现了1.08 ± 0.04 W/m2K的U值,而基本六角空气腔区块 (区块1) 的U值为1.22 ± 0.04 W/m2K.
结论:
- 优化3D打印块的内部几何形状,特别是通过整合水平隔墙,可以显著改善隔热.
- 3D打印技术对开发更节能的建筑元件具有前景.
- 对3D打印建筑材料的先进设计进行进一步的研究可以有助于减少建筑的能源消耗.
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