Search Results - "Endres, Torsten"
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A Compact Fiber-Coupled NIR/MIR Laser Absorption Instrument for the Simultaneous Measurement of Gas-Phase Temperature and CO, CO2, and H2O Concentration
Published in Sensors (Basel, Switzerland) (08-02-2022)“…A fiber-coupled, compact, remotely operated laser absorption instrument is developed for CO, CO2, and H2O measurements in reactive flows at the elevated…”
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2
Multi-line OH-LIF for gas-phase temperature and concentration imaging in the SpraySyn burner
Published in Applications in energy and combustion science (01-12-2023)“…Gas-phase temperature and OH concentration images are measured in the SpraySyn nanoparticle-synthesis standard burner using multi-line OH laser-induced…”
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3
Analyzing 3D fields of refractive index, emission and temperature in spray-flame nanoparticle synthesis via tomographic imaging using multi-simultaneous measurements (TIMes)
Published in Applications in energy and combustion science (01-12-2023)“…Turbulent spray flames issuing from the SpraySyn 2.0 burner were investigated in the present work by means of tomographic imaging using multi-simultaneous…”
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4
LIF-imaging of temperature and iron-atom concentration in iron nitrate doped low-pressure aerosol flat flames
Published in Applications in energy and combustion science (01-12-2023)“…To enable the investigation of the flame chemistry of precursor-laden nanoparticle forming spray flames in quasi-one-dimensional geometry, a matrix burner was…”
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5
Simulations of laminar methane flames doped with iron nitrate/1-butanol aerosol in a novel matrix burner
Published in Applications in energy and combustion science (01-09-2023)“…A novel matrix burner enabled the investigation of aerosol-doped laminar low-pressure flames. Iron nitrate dissolved in 1-butanol was used as a typical model…”
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6
Iron oxide nanoparticle synthesis: Simulation-based comparison of laboratory- and pilot plant-scale spray-flame synthesis
Published in Applications in energy and combustion science (01-06-2024)“…•Investigation of a pilot plant-scale spray flame nanoparticle synthesis burner.•Multi-line NO-LIF thermometry and chemiluminescence measurements.•Validation…”
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7
A hydrogen-based burner concept for pilot-scale spray-flame synthesis of nanoparticles: Investigation of flames and iron oxide product materials
Published in Applications in energy and combustion science (01-09-2023)“…•Pilot-scale spray-flame synthesis of iron oxide nanoparticles•Innovative burner concept with premixed hydrogen/air pilot flame ignited by heated wall•In situ…”
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8
Influence of lateral species diffusion and heat transfer on the evaluation of near-threshold sooting flames
Published in Combustion and flame (01-07-2023)“…Premixed flat flames provide an ideal platform for investigation of soot formation by optical diagnostics. The local conditions can, however, be strongly…”
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9
Near-threshold soot formation in premixed flames at elevated pressure
Published in Carbon (New York) (30-08-2021)“…Soot formation at lean-threshold conditions referred to as “near-threshold sooting conditions” (i.e., with stoichiometry, φ, around 1.90 for ethene as a fuel)…”
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10
Spatial distribution of gas-phase synthesized germanium nanoparticle volume-fraction and temperature using combined in situ line-of-sight emission and extinction spectroscopy
Published in Optics express (15-03-2021)“…In this study, emission and extinction spectroscopy were combined to in situ measure temperature and volume fraction distributions of liquid germanium…”
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11
Phase-sensitive detection of gas-borne Si nanoparticles via line-of-sight UV/VIS attenuation
Published in Optics express (05-07-2021)“…The distinct optical properties of solid and liquid silicon nanoparticles are exploited to determine the distribution of gas-borne solid and liquid particles…”
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12
Spatially resolved measurement of the distribution of solid and liquid Si nanoparticles in plasma synthesis through line-of-sight extinction spectroscopy
Published in Optics express (30-01-2023)“…In many high-temperature gas-phase nanoparticle synthesis processes, freshly nucleated particles are liquid and solidify during growth and cooling. This study…”
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13
In situ measurement of gas-borne silicon nanoparticle volume fraction and temperature by spatially and spectrally line-resolved attenuation and emission imaging
Published in Powder technology (01-01-2022)“…In this study, the temperature and volume fraction distributions of liquid silicon nanoparticles in the aerosol flow in gas-phase synthesis were retrieved…”
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14
Liquid-phase temperature in the SpraySyn flame measured by two-color laser-induced fluorescence thermometry and simulated by LES
Published in Proceedings of the Combustion Institute (2023)“…In the SpraySyn burner (Schneider et al., 2019) a solution of metal salts in a combustible liquid is atomized in a two-fluid nozzle with molecular oxygen as…”
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15
Characterization of spray parameters and flame stability in two modified nozzle configurations of the SpraySyn burner
Published in Proceedings of the Combustion Institute (2023)“…One of the key parameters for spray-flame synthesis of nanoparticles with defined properties is the temporal flame stability. Flame pulsation and consequently…”
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16
Multi-line SiO fluorescence imaging in the flame synthesis of silica nanoparticles from SiCl4
Published in Combustion and flame (01-02-2021)“…Flame synthesis is a powerful and scalable method for generating nanoparticles for a wide range of applications. The chemical interaction of the flame and the…”
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17
A Compact Fiber-Coupled NIR/MIR Laser Absorption Instrument for the Simultaneous Measurement of Gas-Phase Temperature and CO, CO[sub.2], and H[sub.2]O Concentration
Published in Sensors (Basel, Switzerland) (01-02-2022)“…A fiber-coupled, compact, remotely operated laser absorption instrument is developed for CO, CO[sub.2], and H[sub.2]O measurements in reactive flows at the…”
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18
LIISim: a modular signal processing toolbox for laser-induced incandescence measurements
Published in Applied physics. B, Lasers and optics (01-04-2018)“…Evaluation of measurement data for laser-induced incandescence (LII) is a complex process, which involves many processing steps starting with import of data in…”
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19
Temperature, pressure, and oxygen quenching behavior of fluorescence spectra and lifetimes of gas-phase o-xylene and 1,2,4-trimethylbenzene
Published in Applied physics. B, Lasers and optics (01-04-2018)“…Ortho -xylene (1,2-dimethylbenzene, XL) and 1,2,4-trimethylbenzene (TMB) are promising aromatic fluorescence tracer species for gas-phase imaging measurements…”
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20
Evolution of particle size and morphology in plasma synthesis of few-layer graphene and soot
Published in Combustion and flame (01-12-2023)Get full text
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