scholarly journals Research of quantitative remote sensing of natural gas pipeline leakage based on laser absorption spectroscopy

2012 ◽  
Vol 61 (5) ◽  
pp. 050701
Author(s):  
Zhang Shuai ◽  
Liu Wen-Qing ◽  
Zhang Yu-Jun ◽  
Ruan Jun ◽  
Kan Rui-Feng ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Natural Gas ◽  
Absorption Spectroscopy ◽  
Gas Pipeline ◽  
Laser Absorption Spectroscopy ◽  
Laser Absorption ◽  
Natural Gas Pipeline ◽  
Quantitative Remote Sensing

Tunable Diode Laser Absorption Spectroscopy Sensor for Calibration Free Humidity Measurements in Pure Methane and Low CO2 Natural Gas

2016 ◽  
Vol 71 (5) ◽  
pp. 888-900 ◽  
Author(s):  
Javis Anyangwe Nwaboh ◽  
Sonja Pratzler ◽  
Olav Werhahn ◽  
Volker Ebert
Keyword(s):  
Natural Gas ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Tunable Diode Laser ◽  
Laser Absorption Spectroscopy ◽  
Amount Of Substance ◽  
Uncertainty In Measurement ◽  
Laser Absorption ◽  
Combined Uncertainty ◽  
Diode Laser Absorption

We report a new direct tunable diode laser absorption spectroscopy (dTDLAS) sensor for absolute measurements of H2O in methane, ethane, propane, and low CO2 natural gas. The sensor is operated with a 2.7 µm DFB laser, equipped with a high pressure single pass gas cell, and used to measure H2O amount of substance fractions in the range of 0.31–25 000 µmol/mol. Operating total gas pressures are up to 5000 hPa. The sensor has been characterized, addressing the traceability of the spectrometric results to the SI and the evaluation of the combined uncertainty, following the guide to the expression of uncertainty in measurement (GUM). The relative reproducibility of H2O amount of substance fraction measurements at 87 µmol/mol is 0.26% (0.23 µmol/mol). The maximum precision of the sensor was determined using a H2O in methane mixture, and found to be 40 nmol/mol for a time resolution of 100 s. This corresponds to a normalized detection limit of 330 nmol mol−1·m Hz−1/2. The relative combined uncertainty of H2O amount fraction measurements delivered by the sensor is 1.2%.

Natural Gas Pipeline Leak Detection System for Laser Remote Sensing and Calibration

2010 ◽  
Vol 37 (11) ◽  
pp. 2912-2917
Author(s):  
汪磊 Wang Lei ◽  
谈图 Tan Tu ◽  
王贵师 Wang Guishi ◽  
高晓明 Gao Xiaoming
Keyword(s):  
Remote Sensing ◽  
Natural Gas ◽  
Detection System ◽  
Leak Detection ◽  
Gas Pipeline ◽  
Natural Gas Pipeline ◽  
Laser Remote Sensing

scholarly journals Accurate analysis of HCl in biomethane using laser absorption spectroscopy and ion-exchange chromatography

The Analyst ◽  
2021 ◽  
Author(s):  
Javis A. Nwaboh ◽  
Heleen Meuzelaar ◽  
Jiawen Liu ◽  
Stefan Persijn ◽  
Jianrong Li ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Ion Exchange ◽  
Absorption Spectroscopy ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Laser Absorption Spectroscopy ◽  
Accurate Analysis ◽  
Laser Absorption ◽  
Gas Supply

Biomethane is a renewable energy gas with great potential to contribute to the diversification and greening of the natural gas supply.

Research on Infrared Laser Leak Detection for Natural Gas Pipeline

2012 ◽  
Author(s):  
Bin Xu ◽  
Dongliang Yu ◽  
Jiayong Wu ◽  
Hongchao Wang ◽  
Dongjie Tan ◽  
...  
Keyword(s):  
Natural Gas ◽  
Detection System ◽  
Leak Detection ◽  
Infrared Laser ◽  
Gas Pipeline ◽  
Tunable Diode Laser ◽  
Laser Absorption ◽  
Natural Gas Pipeline ◽  
Detection Technology ◽  
Gas Leak

An airborne infrared laser leak detection technology is proposed to detect natural gas pipeline leakage by helicopter which carrying a detector that can detect a high spatial resolution of trace of methane on the ground. The principle of the airborne infrared laser leak detection system is based on tunable diode laser absorption spectroscopy. The system consists of an optical unit including the laser, camera, helicopter mount, electronic unit with GPS receiver, a notebook computer and a pilot monitor. And the system is mounted on a helicopter. The principle and the architecture of the airborne infrared laser leak detection system are presented. Field test experiments are carried out on West-East Natural Gas Pipeline of China, and the results show that the airborne laser leak detection method is suitable for detecting gas leak of pipeline on plain, desert and hills but unfit for the area with large altitude diversification.

Research on Natural Gas Pipeline Leak Detection Based on Airborne Laser Remote Sensing

2011 ◽  
Vol 130-134 ◽  
pp. 4158-4163
Author(s):  
Bin Xu ◽  
Xin Lv ◽  
Hong Chao Wang ◽  
Dong Jie Tan ◽  
Ying Jie Chen
Keyword(s):  
Remote Sensing ◽  
Natural Gas ◽  
High Spatial Resolution ◽  
Detection Method ◽  
Gas Pipeline ◽  
Sensing System ◽  
Natural Gas Pipeline ◽  
Airborne Laser ◽  
Gas Leak ◽  
Laser Remote Sensing

An airborne technology is proposed to detect in flight over natural gas pipeline with a high spatial resolution the presence of trace of methane on the ground. The principle and the architecture of the airborne laser remote sensing system are presented. Field test experiments are carried out on West-East Natural Gas Pipeline of China, and the results show that airborne detection method is suitable for detecting gas leak of pipeline on plain, desert, hills but unfit for the area with large altitude diversification.

INTRACAVITY LASER ABSORPTION SPECTROSCOPY OF NO2 AND CH4 COOLED IN A SLIT JET SUPERSONIC EXPANSION

1991 ◽  
Vol 01 (C7) ◽  
pp. C7-471-C7-476
Author(s):  
A. CAMPARGUE ◽  
M. CHENEVIER ◽  
A. DELON ◽  
R. JOST ◽  
F. STOECKEL
Keyword(s):  
Absorption Spectroscopy ◽  
Laser Absorption Spectroscopy ◽  
Supersonic Expansion ◽  
Laser Absorption ◽  
Intracavity Laser
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