Results 21 to 30 of about 699,761 (252)

Thermoacoustic Instability Considerations for High Hydrogen Combustion in Lean Premixed Gas Turbine Combustors: A Review

open access: yes, 2021
Hydrogen is receiving increasing attention as a versatile energy vector to help accelerate the transition to a decarbonised energy future. Gas turbines will continue to play a critical role in providing grid stability and resilience in future low-carbon ...
Jadeed Beita   +3 more
semanticscholar   +1 more source

Performance Evaluation of an Ultra-Lean Combustion Studies in IC Engines

open access: yesMATEC Web of Conferences, 2016
An investigation was made to determine the effects of ethanol at ultra-lean effective systems utilizing an experimental study. The present study is planned to develop and evaluate the performance, emission and combustion characteristics of the ultra-lean
Puli Ravi Kumar   +4 more
doaj   +1 more source

Thermal Efficiency Improvement of a Lean-Boosted Spark Ignition Engine by Multidimensional Simulation with Detailed Chemical Kinetics

open access: yesInternational Journal of Automotive Engineering, 2015
This paper aims to improve thermal efficiency of spark ignition engine by numerical calculation with detailed chemistry. Experimental results from a four-stroke-single-cylinder engine are compared with that of simulations. It is experimentally found that
Ratnak Sok   +4 more
doaj   +1 more source

Ultra-Low NOx Rich-Lean Combustion [PDF]

open access: yesVolume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 1990
An investigation has been carried out of the influence of the geometry and operating parameters of the rich/quench/lean (RQL) combustion concept on the NOx emissions. The RQL combustor is a three stage, variable geometry system in which fuel is burned in a carefully controlled fuel rich and fuel lean environment. The data utilized in this investigation
N. K. Rizk, H. C. Mongia
openaire   +1 more source

Impact of hydrogen direct injection on engine combustion and emissions in a GDI engine

open access: yesAdvances in Mechanical Engineering, 2023
The combustion and emission characteristics of a hydrogen engine were investigated through experimental analysis using a GDI engine. To enable hydrogen in-cylinder direct injection, a specialized hydrogen gas injector was employed. A comparative analysis
Lei Wang   +4 more
doaj   +1 more source

Integrated Capture and Conversion of CO2 to Methane using a Water-lean, Post-Combustion CO2 Capture Solvent.

open access: yesChemSusChem, 2021
Integrated Carbon Capture and Conversion of CO 2 into materials (IC 3 M) is an attractive solution to meet global energy demand, reduce our dependence on fossil fuels, and lower CO 2 emissions. Herein, using a water-lean post-combustion capture solvent, (
D. Heldebrant   +6 more
semanticscholar   +1 more source

A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]

open access: yes, 1956
An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
core   +1 more source

Experimental Investigation about the Effect of Double-Spark Plug Ignition on Combustion Characteristics for Motorcycle Gasoline Engines with a Mild Lean Mixture

open access: yesACS Omega, 2022
To investigate the effect of double-spark plug ignition (DSI) on the mild lean combustion characteristics of motorcycle gasoline engines, three combustion modes were set up on a gasoline engine for testing, namely, the single-spark plug ignition (SSI ...
H. Shang   +4 more
semanticscholar   +1 more source

Investigation of transition between spark ignition and controlled auto-ignition combustion in a V6 direct-injection engine with cam profile switching [PDF]

open access: yes, 2008
Controlled auto-ignition (CAI) combustion, also known as Homogeneous Charge Compression Ignition (HCCI) can be achieved by trapping residuals with early exhaust valve closure in a direct fuel injection in-cylinder four-stroke gasoline engines (through ...
Kalian, N, Qiao, J, Zhao, H
core   +1 more source

Lean Combustion Technology for Internal Combustion Engines: a Review

open access: yesScience and Technology, 2012
Lean burn is an effective way to improve spark ignition engine fuel economy. Lean combustion is generally considered as a timely solution to the more stringent environmental regulations and global weather concerns in the new era. However, the instability associated with the lean flame significantly keeps the lean combustion technique from being widely ...
Danaiah P., Ravi Kumar P, Vinay Kumar D.
openaire   +2 more sources

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