使用温度传感器对下水道沉积物深度估计的影响
Manuel Regueiro-Picallo1, Alma Schellart2, Henriette Jensen2
1Universidade da Coruña, Water and Environmental Engineering Group (GEAMA), Centro de Innovación Tecnolóxica en Edificación e Enxeñaría Civil (CITEEC), A Coruña, Spain
概括
热传感器可以通过监测温度波动来准确估计下水道沉积物深度. 这种方法在干燥的天气条件下有效地工作,无需测量流量,改进了下水道清洁策略.
科学领域:
- 环境工程 环境工程
- 流体力学 流体力学 流体力学
- 传感技术 传感技术
背景情况:
- 在下水道中沉积沉积物给城市基础设施管理带来了挑战.
- 有效的监测技术对于制定主动清洁策略至关重要.
- 热传感提供了一种被动的方法,通过分析热传递来估计沉积物深度.
研究的目的:
- 为了研究流量条件对干旱天气下下水道水沉积物界面的热传递的影响.
- 评估在不同流量条件下使用热传感器进行沉积物深度估计的可行性.
- 确定下水道系统中基于温度的沉积物监测的准确性和局限性.
主要方法:
- 进行了一次实验活动,使用具有控制流量,温度和沉积物深度的环状水流.
- 进行了数值模拟来分析沉积物深度和热波参数之间的关系.
- 变化的流速 (0.1m/s至0.4m/s) 和沉积物深度,以评估传热动态.
主要成果:
- 水和沉积物之间的热传递在超过0.1m/s的流速时变得即时.
- 使用热传感器对沉积物深度的估计显示,对0.1m/s和0.4m/s之间的速度的灵敏度最低.
- 达到±7毫米的沉积物深度估计准确度,证明了该技术的可行性.
结论:
- 基于温度的传感是一种可靠的方法,用于监测干燥天气条件下下水道中的沉积物.
- 该技术消除了同时进行流量监控的需要,简化了实施.
- 对传热动态的更好理解有助于优化下水道维护和清洁协议.
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