太阳能热水系统的性能优化,使用不同倾斜角度的盐热能存储
Natrayan Lakshmaiya1, Gobikrishnan Udhayakumar2, Prem Kumar Reddy M3
1Department of Mechanical Engineering Saveetha School of Engineering SIMATS Chennai Tamil Nadu 602105 India.
Global challenges (Hoboken, NJ)
|August 27, 2025
概括
融盐热能储存 (MSTES) 与太阳能热水系统相结合,可显著提高性能. 60°的倾斜角度优化了能量捕获和储存效率,提高了太阳能系统的适应性.
科学领域:
- 可再生能源工程
- 热学科学
- 材料科学
背景情况:
- 太阳能热水系统对于可再生能源至关重要,但它们的效率往往受储能和太阳能吸收的限制.
- 盐热储能 (MSTES) 具有很高的热稳定性和能量保留,使其成为太阳能储能的一个有前途的媒介.
- 太阳能采集器定向的优化,如倾斜角度,对于最大限度地提高能源产量至关重要,但其与MSTES的结合效应需要进一步调查.
研究的目的:
- 通过融盐热能储存 (MSTES) 的整合来研究太阳能热水系统的性能提升.
- 评估不同倾斜角度 (15°,30°,45°,60°) 对太阳能集热系统的热性能的影响.
- 通过实验评估关键性能指标,包括收集器效率,传热系数和存储效率.
主要方法:
- 太阳能采集系统采用了抛物线采集系统.
- 使用酸盐和酸盐的化混合物作为热能储存介质.
- 在四个不同的倾斜角度下评估性能,在峰值太阳辐射下分析关键指标.
主要成果:
- 在测试的配置中,60°倾斜角度显示出优异的性能.
- 在最佳倾斜角度实现了75%的最大集热器效率.
- 热传递系数超过880Wm-2K,储存效率达到61%的MSTES在60°倾斜角度.
结论:
- 整合MSTES显著提高了太阳能热水系统的热性能.
- 优化倾斜角度,特别是60°,对于最大限度地提高太阳能吸收和储存效率至关重要.
- 这种方法有助于开发高效,适应各种气候条件和能源需求的太阳能热系统.
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