Results 91 to 100 of about 22,918 (184)

Numerical investigation on combustion performances of premixed H2-air jet flames above a sudden expansion micro-nozzle

Case Studies in Thermal Engineering
Our previous study demonstrated that divergent micro-nozzles designed for H2-fueled domestic gas stoves can achieve a higher flame temperature than conventional straight micro-nozzles, but are more susceptible to flashback. To address this safety concern,
Bo Xu, Wanhao Liu, Aiwu Fan
doaj   +1 more source

Exhaust emissions of a double annular combustor: Parametric study [PDF]

A full scale double-annular ram-induction combustor designed for Mach 3.0 cruise operation was tested. Emissions of oxides of nitrogen, carbon monoxide, unburned hydrocarbons, and smoke were measured over a range of combustor operating variables ...
Schultz, D. F.
core   +1 more source

Analysis of unburned hydrocarbon species for air and oxy-fuel flames in a semi-industrial combustion chamber using Fourier Transform Infrared Spectroscopy

Fuel Processing Technology
The combustion of biomass in an oxy-fuel atmosphere shows significant differences compared to air combustion, primarily due to the changes in gas properties caused by CO2.
D. König, J. Ströhle, B. Epple
doaj   +1 more source

Effects of equivalence ratio and dwell time on exhaust emissions from an experimental premixing prevaporizing burner [PDF]

A flame-tube study was performed to determine the effects of equivalence ratio and residence time on exhaust emissions with premixed, prevaporized propane fuel.
Anderson, D.
core   +1 more source

Emission calibration of a J-58 afterburning turbojet engine at simulated supersonic stratospheric flight conditions [PDF]

Emissions of total oxides of nitrogen, unburned hydrocarbons, and carbon monoxide from a J-58 engine at simulated flight conditions of Mach 2.0, 2.4, and 2.8 at 19.8 km altitude are reported.
Holdeman, J. D.
core   +1 more source

A steam inerting system for hydrogen disposal for the Vandenberg Shuttle [PDF]

A two-year feasibility and test program to solve the problem of unburned confined hydrogen at the Vandenberg Space Launch Complex Six (SLC-6) during Space Shuttle Main Engine (SSME) firings is discussed.
Belknap, Stuart B.
core   +1 more source

Combustion and Emission Analysis of NH₃-Diesel Dual-Fuel Engines Using Multi-Objective Response Surface Optimization

Atmosphere
As internal combustion engines (ICEs) remain dominant in maritime transport, reducing their greenhouse gas (GHG) emissions is critical to meeting IMO’s decarbonization targets.
Omar I. Awad, Mohammed Kamil, Ahmed Burhan, Kumaran Kadirgama, Zhenbin Chen, Omar Khalaf Mohammed, Ahmed Alobaid   +6 more
doaj   +1 more source

Gas sampling method for determining pollutant concentrations in the flame zone of two swirl-can combustor modules [PDF]

A gas sampling probe and traversing mechanism were developed to obtain detailed measurements of gaseous pollutant concentrations in the primary and mixing regions of combustors in order to better understand how pollutants are formed.
Duerr, R. A.
core   +1 more source

Measurement of gaseous emissions from a turbofan engine at simulated altitude conditions [PDF]

Gaseous emission from a TFE 731-2 turbofan engine were measured over a range of fuel-air ratios from idle to full power at simulated from near sea level to 13,200 m.
Biaglow, J. A., Diehl, L. A.
core   +1 more source

Reverse-flow combustor for small gas turbines with pressure-atomizing fuel injectors [PDF]

A reverse flow combustor suitable for a small gas turbine (2 to 3 kg/s mass flow) was used to evalute the effect of pressure atomizing fuel injectors on combustor performance.
Mularz, E. J., Norgren, C. T., Riddlebaugh, S. M.   +2 more
core   +1 more source