基于Raman的单端分布式温度传感的校准和不确定性量化:在800米深的同轴钻孔热交换器中的案例研究
Willem Mazzotti Pallard1, Alberto Lazzarotto1, José Acuña1
1Department of Energy Technology, Royal Institute of Technology (KTH), 10044 Stockholm, Sweden.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
这项研究引入了分布式温度传感 (DTS) 的新校准方法,以准确测量钻井热交换器 (BHE) 温度. 该方法减少了不确定性,这对于验证地面源热 (GSHP) 模型至关重要.
科学领域:
- 地热能源工程 地热能源工程
- 热力工程是热力工程中的一个.
- 测量科学 测量科学 测量科学
背景情况:
- 基于拉曼的分布式温度传感 (DTS) 对BHE和GSHP应用至关重要.
- 准确的温度数据对于传热模型的验证至关重要.
- 在DTS中温度不确定性通常不会报告,这限制了模型的可靠性.
研究的目的:
- 为单端DTS配置提出和验证一种新的校准方法.
- 开发一种方法来纠正由环境空气变化引起的温度偏移.
- 为了量化BHE应用的DTS中的温度不确定性.
主要方法:
- 为单端DTS系统开发了一种新的校准技术.
- 实现了对环境空气影响的漂移校正算法.
- 在800米同轴BHE中进行分布式热响应试验 (DTRT) 的应用方法.
主要成果:
- 校准和漂移校正方法被证明是强大的和有效的.
- 温度不确定性非线性地增加,从表面的0.4K增加到800米深的1.7K.
- 不确定性主要是由校准参数在200米以下的深度.
结论:
- 拟议的DTS校准和校正方法为BHE提供可靠的温度测量.
- 实现了准确的温度不确定性量化,增强了模型验证能力.
- 观察到的热特性包括热流逆转和循环过程中缓慢的温度均化.
关键词:
DTRTT 这是一个很好的方法.在 DTS 中,DTS 是 DTS 的意思.拉曼·拉曼,拉曼·拉曼,拉曼·拉曼.钻井孔的钻井孔是什么意思值得信赖的时间间隔.深度同轴 BHE 的情况.分布式的温度传感器.光纤光学纤维是一种光纤.温度的温度的温度的温度的温度不确定性是一种不确定性.更多相关视频
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