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Carbon Capture and Storage (CCS) is considered as an important technology to reduce CO2 emission from electrical power generation and other industrial processes. In the CCS chain, i.e. from capture to storage via transportation, it is essential to realize accurate measurement of CO2 flows for the purpose of accounting and potential leakage detection. However, there are some significant challenges...
Leakage detection and monitoring technologies play a critical role in CO2 transportation pipelines to effectively help reduce financial loses and potential damages to the environment. This paper investigates the leak of gaseous CO2 in a controlled laboratory environment using thermal imaging based on the temperature change detection technique. Platinum resistance temperature detector is also used...
Carbon capture and storage (CCS) technology is considered to be one of the most promising options in dealing with the problem of global warming, where long distance transmission pipeline is often used for transporting captured CO2 to the storage site. A pipe leak detection and location system is established in the present work. An Acoustic emission (AE) signal occurs when CO2 leak takes place. The...
This paper presents a summary account of a comprehensive study to investigate and analyze the indispensable role of CO2 detection in the CCS stream. Its content addresses CCS facilities as an affordable, secure low-carbon emission energy system and a forerunner solution for the near-future global revolution of energy generation. Various Measurement, Monitoring and Verification (MMV) technologies of...
This paper proposes a novel approach to online automatic detection of the presence of large biomass particles in a pneumatic conveying pipeline using an acoustic emission sensor and time-frequency analysis techniques. The acoustic sensor is used to capture the sound emitted from the collisions between biomass particles and pipe wall. Time-frequency analysis technique is used to eliminate environmental...
This paper presents the latest development in the velocity measurement of pulverized coal and biomass fuels in pneumatic pipelines using electrostatic sensors in combination with correlation signal processing techniques. A comparative study of electrostatic sensors with circular and rod electrodes was conducted on a 94mm bore horizontal pipeline feeding a 4 MW industrial scale furnace. Experimental...
This paper reports recent advances in the optimisation of intrusive electrostatic sensors for the continuous velocity measurement of particles in pneumatic conveying pipelines. The effects of electrode dimensions and intrusion depth on sensor signals and correlation based velocity measurement have been investigated. Different cross sectional shapes of the electrodes have been compared. The optimum...
It is important to study the interface fluctuations between the two phases in a gas/liquid flow to achieve an in-depth understanding of the mixture flow and subsequent optimization of industrial processes. This paper presents a study of the interface fluctuations between the gas and liquid phases in a pipeline. Experimental data are obtained from a gas/liquid two-phase flow rig through electrical...
Cross-correlation methods in combination with electrostatic sensing technology offer a promising solution to the on-line continuous measurement of velocity of particulate solids in pneumatic pipelines. The sampling frequency and integral time are two fundamental parameters in cross-correlation calculation. This paper describes the principles and steps of the selection of these two parameters. The...
Electrostatic sensors are used in the power generation industry to measure the velocity and other parameters of pulverized fuel. However, relatively little is known about the exact nature of the signal induced onto the sensor electrode, which is dependent on sensor geometry, particle size distribution, and particle velocity. This paper presents a novel approach to the study of signals induced onto...
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