飞飞行激光雷达用于高温气体探测
Chet R Bhatt1,2, Daniel A Hartzler1,2, Dustin L McIntyre1
1National Energy Technology Laboratory, 3610 Collins Ferry Road, Morgantown, WV 26505, USA.
Sensors (Basel, Switzerland)
|December 17, 2024
概括
这项研究适应了Scheimpflug光探测和距离测定 (S-LIDAR) 用于在高温炉中进行远程气体传感. 它成功检测到,氧和二氧化碳 (CO2) 拉曼信号,证明了对恶劣工业环境的概念验证.
科学领域:
- * 热力学和燃烧科学
- * 光学传感和光谱学
背景情况:
- *在大型热系统 (炉,热回收蒸汽发电机) 中精确测量局部操作条件对于效率,环境性能和组件寿命至关重要.
- * 恶劣的内部环境 (高温,氧化/减氧大气,颗粒物) 使传统的物理探测器无效.
- * 遥感为克服现场测量的局限性提供了一个可行的替代方案.
研究的目的:
- * 适应并证明Scheimpflug光探测和测距 (S-LIDAR) 的可行性,用于在高温炉环境中进行远程气体物种探测.
- *为了验证S-LIDAR技术在模拟炉条件下检测关键气体物种 (N2,O2,CO2).
主要方法:
- * 使用了适用于高温应用的 Scheimpflug 光探测和测距 (S-LIDAR) 系统.
- *专注于检测来自 (N2),氧 (O2) 和二氧化碳 (CO2) 的拉曼散射信号.
- *研究了检测到的气体物种信号的行为,作为温度升高的函数.
主要成果:
- * 在一个概念验证实验中成功检测到与N2,O2和CO2相对应的拉曼信号.
- * 证明了S-LIDAR能够区分和测量这些气体物种的能力.
- *观察并描述了温度上升对目标气体拉曼信号的影响.
结论:
- * Scheimpflug光探测和测距 (S-LIDAR) 是一种有前途的遥感技术,用于分析像炉这样具有挑战性的高温工业环境中的气体物种.
- * 该研究提供了使用S-LIDAR监测N2,O2和CO2的概念证明,这对于了解燃烧和优化性能至关重要.
- *进一步开发可以实现实时,非侵入性监测炉状况,提高运营效率和安全.
相关概念视频
Gas Chromatography: Types of Detectors-II
334
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
334
Flame Photometry: Overview
466
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
466
Flame Photometry: Lab
213
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
213
Gas Chromatography: Types of Detectors-I
373
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
373


