On the dynamics of sprays in complex gas turbine swirl injectors
Sign Up to like & getrecommendations! Published in 2020 at "Experiments in Fluids"
DOI: 10.1007/s00348-019-2871-6
Abstract: Abstract Coupling of spray with the coherent structures of highly turbulent flow has been a long-standing problem, especially in the context of liquid fuel delivery systems in gas turbine combustors. In this work, we analyze… read more here.
Keywords: swirl; 7ex hbox; gas turbine; flow ... See more keywords
Numerical study of self-similar natural convection mass transfer from a rotating cone in anisotropic porous media with Stefan blowing and Navier slip
Sign Up to like & getrecommendations! Published in 2019 at "Indian Journal of Physics"
DOI: 10.1007/s12648-019-01520-9
Abstract: A mathematical model is presented for laminar, steady natural convection mass transfer in boundary layer flow from a rotating porous vertical cone in anisotropic high-permeability porous media. The transformed boundary value problem is solved subject… read more here.
Keywords: slip; porous media; mass; cone ... See more keywords
Application of eccentric-swirl-secondary-air combustion technology for high-efficiency and low-NOx performance on a large-scale down-fired boiler with swirl burners
Sign Up to like & getrecommendations! Published in 2018 at "Applied Energy"
DOI: 10.1016/j.apenergy.2018.04.064
Abstract: Abstract A 300-MWe anthracite and down-fired boiler equipped with swirl burners, which was retrofitted with the previously proposed deep-air-staging combustion technology to reduce particularly high NOx emissions, still suffered from high carbon content in fly… read more here.
Keywords: combustion technology; combustion; swirl; air ... See more keywords
Regression rate and combustion performance investigation on hybrid rocket motor with head-end swirl injection under high geometric swirl number
Sign Up to like & getrecommendations! Published in 2020 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2020.105922
Abstract: Abstract It is well known that head-end swirl injection can overcome the key problem of low regression rate and combustion inefficiency in hybrid rocket motor effectively. In this paper, the effect of head-end swirl injection… read more here.
Keywords: swirl injection; swirl; rocket motor; injection ... See more keywords
The influence of inlet swirl intensity and hot-streak on aerodynamics and thermal characteristics of a high pressure turbine vane
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2020.12.036
Abstract: Abstract In modern gas turbines, the High Pressure Turbine (HPT) is exposed to an extreme thermal environment due to the burned gases leaving the combustor. The burned gases are characterized by flow and temperature distortions… read more here.
Keywords: high pressure; turbine; aerodynamics; inlet ... See more keywords
Large eddy simulation of pressure and dilution-jet effects on soot formation in a model aircraft swirl combustor
Sign Up to like & getrecommendations! Published in 2018 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2018.02.021
Abstract: Abstract Soot formation in a model aircraft engine configuration operating at elevated pressures is studied using large eddy simulation (LES) and detailed models for precursor and soot population evolution. Specifically, pressure and secondary oxidation air… read more here.
Keywords: soot formation; swirl; formation; simulation ... See more keywords
Case study for co and counter swirling domestic burners
Sign Up to like & getrecommendations! Published in 2018 at "Case Studies in Thermal Engineering"
DOI: 10.1016/j.csite.2018.01.004
Abstract: Abstract In this case study, the influence of equivalence ratio for co and counter-swirl domestic burners compared with non-swirl design on the thermal efficiency as well as CO emissions has been studied using liquefied petroleum… read more here.
Keywords: swirl; thermal efficiency; case; domestic burners ... See more keywords
Theoretical and experimental evaluation of temperature drop and power consumption in a cover-plate pre-swirl system for gas turbine cooling
Sign Up to like & getrecommendations! Published in 2021 at "Case Studies in Thermal Engineering"
DOI: 10.1016/j.csite.2021.101221
Abstract: Abstract The pre-swirl system has the ability to decrease the air supply temperature so as to improve the cooling performance and the operating life for turbine rotating blade. In this paper, a test rig was… read more here.
Keywords: swirl system; temperature drop; temperature; pre swirl ... See more keywords
The effect of swirl burner design configuration on combustion and emission characteristics of lean pre-vaporized premixed flames
Sign Up to like & getrecommendations! Published in 2021 at "Energy"
DOI: 10.1016/j.energy.2021.120622
Abstract: Abstract The present paper experimentally provides a quantitative comparison between the aerodynamic flow field at non-reaction conditions (cold flow) and the combustion and emission characteristics (hot conditions) of two swirl burners having the same swirl… read more here.
Keywords: combustion emission; emission characteristics; burner; swirl ... See more keywords
Effects of liquid and air swirls on the three-dimensional instability of an annular viscous liquid sheet
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2021.120227
Abstract: Abstract A three-dimensional temporal linear instability model is proposed for an annular viscous liquid sheet moving between two inviscid gas streams. The model is numerically solved by Chebyshev collocation method. Effects of liquid swirl, inner… read more here.
Keywords: gas; instability; sheet; outer ... See more keywords
Renormalisation of particle distributions in an initially-biased turbulent jet by swirl and radial injection
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2020.103509
Abstract: Abstract The distribution of particles in a jet with an initial bias is assessed using planar nephelometry, which is a planar imaging technique using Mie-scattering. Initial biases in particle distributions can have large and significant… read more here.
Keywords: radial injection; particle distributions; jet; swirl ... See more keywords