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| Title | Date | Subject | Description | ||
|---|---|---|---|---|---|
| 1 |
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A bayesian decision-theory-based digital twin for methane flares | 2022 | Ground flares operate in a high-turndown, standby configuration for a significant portion of their operating life, being fully utilized only under process upset scenarios or emergencies. The low-momentum flow results in poor fuel-air mixing near the flare tip, leading to decreased overall combustion... | |
| 2 |
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A chemical kinetics approach for heavy fuel oils gasification modelling | 2022 | surrogate; HFOs; pyrolysis; chemical kinetics modeling; Gassification | Refinery oil residue commonly considered the bottom of the barrel, can no longer be a waste. The increasing energy demand and the constant depletion of light oil supply make it crucial to find a suitable way to convert residual oils into valuable fuels. The gasification process represents a possible... |
| 3 |
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A volume of fluid approach to model injection of highly viscous fluids | 2022 | Despite the transition to renewable energy sources, fossil fuels will still play a significant role in satisfying the world's energy needs shortly. In addition, the rise in the demand for light distillates and the depletion of light crude oil reservoirs are shifting the interest toward the conversio... | |
| 4 |
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Analysis of burner operation inside an enclosed ground flare | 2022 | Thermo-Acoustic Coupling; Enclosed Flare; LES CFD Model; Noise; Premixed Burner | An industrial enclosed ground flare used as part of a large refinery project has been analyzed to assess combustion stability and performance under low and high flow conditions. This flare includes a large combustion chamber directly above the burner deck with Low Flow (LF) burners that fire up to 9... |
| 5 |
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Analysis of design and operation of multi-point ground flares | 2022 | Multi-point ground flares (MPGF) are used to process large quantities of hydrocarbon gases generated in chemical processing or petrochemical refining. These flares use hundreds of flare burners arranged and fired in a staged fashion. A wind fence surrounds the MPGF to shield the flames from plant op... | |
| 6 |
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Capturing the effect of near-and far-field dynamics on the combustion efficiency of multi-point ground flares | 2022 | Multi-point ground flares are frequently used in scenarios where flare gas flow rates can be high and pollution (noise, light, smoke) needs to be minimized. We have applied Arches, a large eddy simulation (LES) tool that we have developed for capturing the dynamics of flares (turbulent mixing, local... | |
| 7 |
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CFD development for fired heater applications | 2022 | Industry values the ability to ‘virtually' verify and optimize burner performance through CFD simulation and to evaluate the suitability of burner and furnace designs. Inaccurate results may lead us to falsely reject good burner designs or accept a poor design. Field problems can be far more expen... | |
| 8 |
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Clearsign core process burners and boiler burners - burner scaling and field results | 2022 | During previous AFRC Industrial Combustion Symposia, ClearSign Technologies Corporation introduced its ClearSign Core technology currently used in our Ultra Low NOx burner products. These ClearSign Core products have now been developed for different types of equipment applications to meet stringent ... | |
| 9 |
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Effect of operating parameters on fired heater tube skin temperature measurement accuracy & the development of new improved tube skin thermocouple | 2022 | Refineries are often faced with challenges to meet production target, improve efficiency, process opportunity crudes with limited information on fouling characteristics etc. The common parameter that often becomes constraining are the tube skin temperatures which are critical in maintaining the inte... | |
| 10 |
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Explaining the "three inch rule": why model flares don't match full-scale | 2022 | It was Pohl and co-workers who discovered the so-called "Three Inch Rule" in their work on flares in the 1980s. They found that model flares with pipe diameter less than three inches do not have the same Combustion Efficiency (CE) and stability behaviour as full-scale flares, at least when wind is n... | |
| 11 |
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Installation of lean premix and remote fuel staging system in industrial process heater for next generation nox emissions control | 2022 | John Zink Hamworthy Combustion (JZHC) has completed the first installation and startup of the SOLEX combustion system in the Vacuum Tower Feed Furnace at a GS Caltex refinery in South Korea. The patented SOLEX™ burner compromises a lean premix zone of combustion, where the air-to-fuel ratio (AFR) ... | |
| 12 |
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Investigative approach to address thermoacoustic vibration in gas-fired heaters and boilers | 2022 | Industrial gas-fired boilers, furnaces and heaters occasionally encounter low-frequency vibrations generated by dynamic feedback between the burner (or burners) and acoustic modes in adjacent cavities in the main combustion chamber or ductwork. Feedback occurs when pressure pulses associated with ac... | |
| 13 |
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Quantifying flare combustion efficiency using an imaging fourier transform spectrometer | 2022 | Mid-wavelength infrared (MWIR) hyperspectral imaging may be used to calculate the flare combustion efficiency from standoff measurements, without requiring any information about the fuel flow rate to the flare. Species column densities are found using a spectroscopic model, which is combined with a ... |
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