强制循环太阳能热水系统的数值模拟
Ahmed Remlaoui1, Driss Nehari1, Benhanifia Kada2
1Applied Hydrology and Environment Laboratory , University of Ain Témouchent -BELHADJ Bouchaib , 46000, Ain-Témouchent, Algeria.
Scientific reports
|November 23, 2024
概括
这项研究开发了TRNSYS模型,用于阿尔及利亚的强制循环太阳能热水系统,显示9月份太阳能分数高达84%以上,并确保家庭恒定的热水温度.
科学领域:
- 可再生能源系统可再生能源系统
- 太阳能热应用 太阳能热应用
- 数字建模和仿真 数字建模和仿真
背景情况:
- 阿尔及利亚的气候为太阳能热水提供了独特的挑战和机会.
- 住宅用热水需求需要高效可靠的供暖解决方案.
- 强制循环太阳能热水系统 (FC-SWH) 为家庭使用提供了潜力.
研究的目的:
- 开发和验证适合阿尔及利亚气候条件的FC-SWH复杂的数值模拟模型.
- 评估系统在满足单户住宅每日热水需求 (246 L) 的性能.
- 分析热性能,能源效率和辅助加热要求.
主要方法:
- 使用TRNSYS动态模拟软件来建模FC-SWH系统.
- 从现有的文献中验证了采集器出口温度数据的模型.
- 分析了包括太阳能分数,热效率和能源收益在内的关键绩效指标.
主要成果:
- 该模型实现了38°C (9月) 的最大月平均集热器出口温度和250W (8月) 的峰值能量增益.
- 该系统始终在55°C和57°C之间提供热水,混合器出口温度为47°C,用于冷却应用.
- 太阳能分数在9月超过了84%,在一年中的大部分时间保持在60%以上,热效率在43%至73%之间.
结论:
- TRNSYS模型准确地模拟了阿尔及利亚气候的FC-SWH性能,证实了其适用于住宅应用的适用性.
- 该系统显示了减少对辅助供暖的依赖的巨大潜力,有助于阿尔及利亚实现可持续的能源独立.
- 气候特定的设计和性能分析对于优化不同地理区域的太阳能热水系统至关重要.
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