探索纳米流体在太阳能热应用的无系统中的使用
Anna Kosinska1, Boris V Balakin2, Pawel Kosinski3
1Department of Mechanical and Marine Engineering, Western Norway University of Applied Sciences, Bergen, Norway. anna.dorota.kosinska@hvl.no.
Scientific reports
|October 10, 2023
概括
这项研究探索了无热系统中的碳黑纳米流体,发现了效率的最佳度. 在辐射过程中发现了不稳定的现象,并进行了模拟以更好地理解.
科学领域:
- 热力学是一种热力学.
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 纳米流体为能源系统提供了增强的热性能.
- 无设计可以减少维护和增加使用寿命.
- 了解不稳定的现象对于优化热能系统至关重要.
研究的目的:
- 在模拟太阳辐射下研究基于纳米流体的热系统中的不稳定现象.
- 确定碳黑纳米流体的最佳度以提高效率.
- 分析辐射变化对系统性能的影响.
主要方法:
- 使用带有碳黑纳米流体的方形玻璃管环的实验设置.
- 使用素灯模拟太阳辐射.
- 计算流体动力学 (CFD) 模拟用于详细分析.
主要成果:
- 碳黑纳米流体在0.005-0.01重量%显示了最有效的性能.
- 在辐射过程中观察并描述了不稳定的对流运动.
- 在开始和辐射变化期间确定了关键的不稳定过程.
结论:
- 优化的纳米流体度提高了热系统的效率.
- 了解不稳定的现象是可靠的无热能系统的关键.
- 差价合约模拟为这些系统中复杂的流体动力学提供了宝贵的见解.
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