Global ETD Search
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Showing 1 to 7 of 7 for “"Lean Blowout"”.
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Real-Time Prediction of Lean Blowout using Chemical Reactor Network
The lean blow-out (LBO) of gas turbine combustors is a concern that can limit the rate of descent for an aircraft, the maneuverability of military jets, and cause a costly and time-intensive reignition of land-based gas turbines. This work explores the feasibility of a model-based combustor …
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Study of Lean Blowout Limits and Effects of Near Blowout Oscillations on Flow Field and Heat Transfer on Gas Turbine Combustor
Modern gas turbine combustors implement lean premixed (LPM) combustion system to reduce the formation of NOx pollutants. LPM technology has advanced to have the ability to produce extremely low level of NOx emissions. The current focus of research on LPM is focused on reducing the NOx emission to …
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Investigation of a prototype industrial gas turbine combustor using alternative gaseous fuels
… central part is a precombustor called rich-pilot-lean (RPL). The purpose of the RPL is to supply heat and radicals to the other sections to stabilize combustion. The next section is the Pilot, which serves as an intermediate burner in which the equivalence ratio can be optimized to stabilize …
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Dynamics of Lean Direct Injection Combustors
… temperatures, and thus more NOx production. Lean Direct Injection (LDI) is a combustion scheme that was proposed by NASA, and inherently addresses the needs of both the private sector and the military. LDI is a liquid fueled combustor that promotes rapid mixing of fuel and air at the entrance …
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Development of a Single-Point SV-LDI-1 System: A Benchmark Study for Future Experiments
… without compromising performance or emissions. Lean Direct Injection (LDI) has emerged as a promising solution to these challenges. Originally proposed by NASA, LDI promotes rapid mixing of fuel and air at the combustor inlet, generating a more uniform flame front and significantly reducing the …
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The influence of fuel properties on threshold combustion in aviation gas turbine engines
… operating conditions. It focused on altitude blowout performance and was in part motivated by results that were encountered during an aviation industry evaluation of synthetic kerosene that complied with the Jet A-1 specification, but differed from the fuel that was used as a reference in …
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Impact of alternative jet fuels on gas turbine combustion systems
… and the flame dynamics and structure near the lean blowout (LBO) limit, when fuel flow rate is decreased to the point at which the flame is extinguished. To study spray droplet distributions at this condition, a 2D phase Doppler anemometer (PDA) is used to characterize alternative jet fuels’ …