实验数据集的流体流量和热传递在一个浅的包装床在低雷诺兹数的低雷诺兹数
Anika Weber1,2, Sebastian Schürg1, Timo Roeder3,2
1German Aerospace Center (DLR), Institute of Future Fuels, Im Langenbroich 13, 52428 Jülich, Germany.
Data in brief
|June 27, 2025
概括
这项研究详细介绍了在浅密的床上暂时传热的实验,这对于热能储存至关重要. 温度,压力和材料特性数据为模型验证提供.
科学领域:
- 储能 储能 储能 储能 储能 储能
- 热传递热量转移的方法
- 实验工程实验工程实验工程
背景情况:
- 具有较大的直径与高度比率的浅包装床是具有成本效益的热能储能系统的关键组成部分.
- 了解这些系统的短暂热行为对于优化其性能和效率至关重要.
- 现有的模型需要详细的实验数据来验证,特别是关于短暂的加热和冷却周期.
研究的目的:
- 实验性地研究在加热和冷却周期期间,浅层包装床的短暂行为.
- 为了模型验证,收集有关温度,压力和空气质量流的综合数据.
- 提供材料性能数据和详细的实验方法,以支持先进的模拟.
主要方法:
- 用空气作为传热流体,在一个浅的包装床上 (直径是其高度的两倍) 进行了9次实验.
- 将床加热到773K,然后冷却,以60Hz的频率记录数据 (温度,压力,空气质量流).
- 使用了广泛的仪器仪表,包括40多个热电偶,压力传感器和红外摄像头;特征粒子和绝缘性质.
主要成果:
- 收集了广泛的数据集,包括在加热和冷却期间的短暂温度分布,压力下降和空气质量流速.
- 测量和记录了主要材料特性,如散密度,颗粒大小分布,球状性,比热量,导热率和排放性.
- 提供了详细的实验方法,包括流量预测和流体同质化技术,确保数据可重现性和适合验证.
结论:
- 展示的综合实验数据和材料特性适用于验证高级计算模型,如CFD-DEM模拟.
- 这项研究提供了有关热能储存应用的浅包装床的短暂热性能的宝贵见解.
- 使用金属屏幕对流体均质化的信息可以帮助研究人员设计类似的实验设置.
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