太阳能空气加热器的性能提升使用V偏光灯
Vijayakumar Rajendran1, Alagar Karthick2, Ganesh Bhausaheb Shinde3
1Centre for Smart Energy Systems, Chennai Institute of Technology, Chennai, 600069, Tamilnadu, India.
Scientific reports
|October 7, 2025
概括
这项研究提升了太阳能空气加热器 (SAH) 使用V形波段与组合穿孔,显著提高热效率和工业应用的功率.
科学领域:
- 可再生能源工程可再生能源工程
- 热科学 热科学 热科学
- 可持续技术 可持续技术
背景情况:
- 太阳能空气加热器 (SAH) 对工业和农业干燥至关重要,但由于热效率低,在高温过程中面临限制.
- 提高SAH性能对于扩大其应用范围和经济可行性至关重要.
研究的目的:
- 通过引入具有优化穿孔配置的新型V形屏蔽来提高太阳能空气加热器 (SAH) 的热性能.
- 通过CFD模拟和实验验证,评估不同穿孔设计 (方形,矩形,组合) 对SAH效率的影响.
主要方法:
- 运用计算流体动力学 (CFD) 模拟来分析三个V模块孔设计:方形,矩形和组合.
- 根据CFD结果选择了最佳的穿孔设计,并用于构建一个实验SAH原型.
- 实验性研究以不同的质量流速 (0.0230,0.0307,0.0384公斤/秒) 进行,以评估性能.
主要成果:
- 与其他设计相比,V形波段与联合方形和矩形穿孔配置的V形波段产生了优越的输出空气温度和有用功率.
- 拟议的SAH实现了47-52°C的平均输出空气温度和244.35-585.37W的有用功率输出,跨测试的流速.
- 观察到显著的改进:高达29%的有效功率增加,10-24%的顶部表面热损失减少,5-14%的效率高于传统SAH.
结论:
- 带有组合穿孔的V形波段是太阳能空气加热器的有效增强,显著提高了热效率和功率输出.
- 增强的SAH显示了大量的环境和经济效益,包括12.36%更短的回报期和12.6%更高的生产因子.
- 这种优化的SAH设计为高温工业过程提供了有前途的解决方案,提高了可持续性和成本效益.
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