Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"Lean direct injection"”.
-
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 …
-
Effects of Thermoacoustic Oscillations on Spray Combustion Dynamics with Implications for Lean Direct Injection Systems
… flow experiments were conducted on a overall lean direct injection, swirl-stabilized combustor rig. The investigations spanned combustor characterization and stability mapping over the operating regime. All experiments were performed under atmospheric pressure condition, which is considered as …
-
An Experimental Investigation of Self-Excited Combustion Dynamics in a Single Element Lean Direct Injection (LDI) Combustor
… have led to engine operation in a narrow, lean regime. While premixed or partially premixed combustor configurations such as the Lean Premixed Pre-vaporized (LPP), Rich Quench Lean burn (RQL), and Lean Direct Injection (LDI) have shown a potential for reduced NOx emissions, they promote a …
-
Development and Characterization of a Synchronously Actuated Response Atomizer for Studying Thermoacoustic Instabilities
… for use in turbomachinery applications. Lean Direct Injection is an active area of research for how fuel is introduced and burned in the combustor section of a jet engine or land based liquid fuel turbine. Overall lean combustion results in lower NOx emmisions while direct injection …
-
Experimental investigations into high-altitude relight of a gas turbine
… to investigate high-altitude relight of a lean direct injection (LDI) combustor. The features that make LDI technology less polluting in terms of NOx compared to conventional combustors are expected to impede relight performance. Therefore an improved understanding of ignition behaviour is …
-
Hydrogen Enrichment Effects on Thermoacoustics of Turbulent Partially Premixed Flames
… combustors are frequently operated under fuel lean conditions to mitigate harmful emissions, rendering them susceptible to undesirable thermoacoustic instabilities. Additionally, meeting decarbonisation targets require incorporation of hydrogen into the existing combustion infrastructure. This …
-
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 …