Infrared absorption for measurement of hydrocarbon concentration in fuel/air mixtures (MAST-B-LIQUID)

Gillet, B.; Hardalupas, Y.; Kavounides, C.; Taylor, A. M. K. P.

doi:10.1016/j.applthermaleng.2003.12.005

Cited by 41 publications

(15 citation statements)

References 38 publications

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“…The resolutions achieved agree with a theoretical relationship obtained using the Fourier slice theorem except for radially limited Phantoms (256OC, 256SU) for which much shorter wavelengths were resolved that agreed with the relation given by Frieder and Herman [65] and the relations inferred from previous work [77,21,17,35,63]. We therefore conclude that the FST derived relationship is applicable to ART only as a very conservative estimate, and where the field to be reconstructed is more sparse better resolutions are achieved.…”

Section: Discussionsupporting

confidence: 87%

“…The wavelengths k res resolved in several previous studies [8,11,21,41,42,35,29,17] are shown in Fig. 4 as a function of the number N q of views.…”

Section: Existing Theory and Previous Workmentioning

confidence: 98%

“…More recent studies [18][19][20][21][22][23] have considered in situ applications with optical access restrictions and so lower numbers of views. Reconstructions of Refractive Index (RI) measurements have been performed using CT for flow visualisation purposes [24,25] and to provide temperature and density information [26][27][28][29], in some cases in 3D by stacking sections [26,27,17,29].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Computed Tomography of Chemiluminescence (CTC): Instantaneous 3D measurements and Phantom studies of a turbulent opposed jet flame

Floyd

Geipel

Kempf

2011

Combustion and Flame

171

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Section: Discussionsupporting

confidence: 87%

“…The wavelengths k res resolved in several previous studies [8,11,21,41,42,35,29,17] are shown in Fig. 4 as a function of the number N q of views.…”

Section: Existing Theory and Previous Workmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Computed Tomography of Chemiluminescence (CTC): Instantaneous 3D measurements and Phantom studies of a turbulent opposed jet flame

Floyd

Geipel

Kempf

2011

Combustion and Flame

171

View full text Add to dashboard Cite

“…either rotating the probing beams or translating the target (149,150,174). Figure 12 shows two representative implementation of the lab-scale LAS tomographic sensors based on beam scanning.…”

Section: Design Of Tomographic Sensors and Systemsmentioning

confidence: 99%

Laser absorption spectroscopy for combustion diagnosis in reactive flows: A review

Liu

2018

Applied Spectroscopy Reviews

167

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Laser absorption spectroscopy (LAS) has been rapidly developed and widely applied to combustion diagnosis in recent decades. As a costeffective tool for measuring multiple combustion parameters, LAS provides unique properties in terms of accuracy and sensitivity for understanding the reactions and kinetics in reactive flows. Line-ofsight and tomographic LAS techniques have stimulated numerous applications and been proved to be robust for in situ combustion diagnosis in uniform and non-uniform combustion fields, respectively. This review highlights the breakthroughs in the evolution of LAS techniques from the viewpoints of key principles, sensors and instrumentations developed for combustion diagnosis, with particular emphasis on a series of spatially-resolved LAS techniques with their recent applications on obtaining high-fidelity measurement results with minimal intrusion to the practical combustors. Along the way, we note some challenges and requirements for further development of the LAS-based combustion diagnosis.

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“…More information about the principles of infra-red absorption techniques, chemilumineschence and FID methods one can consult respectively [16], [17] and [18].…”

Section: Engine and Experimental Set-upmentioning

confidence: 99%

Influence of fuel type, dilution and equivalence ratio on the emission reduction from the auto-ignition in an Homogeneous Charge Compression Ignition engine

Machrafi

Cavadias

Amouroux

2010

Energy

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One technology that seems to be promising for automobile pollution reduction is the Homogeneous Charge Compression Ignition. This technology still faces auto-ignition and emission control problems. This paper focuses on the emission problem, since it is incumbent to realize engines that pollute less. For this purpose, this paper presents results concerning the measurement of the emissions of CO, NO x , CO 2 , O 2 and hydrocarbons. HCCI conditions are used, with equivalence ratios between 0.26 and 0.54, inlet temperatures of 70 0 C and 120 o C and compression ratios of 10.2 and 13.5, with different fuel types: gasoline, gasoline surrogate, diesel, diesel surrogate and mixtures of nheptane/toluene. The effect of dilution is considered for gasoline, while the effect of the equivalence ratio is considered for all the fuels. No significant amount of NO x has been measured. It appeared that the CO, O 2 and hydrocarbon emissions were reduced by decreasing the toluene content of the fuel and by decreasing the dilution.The opposite holds for CO 2 . The reduction of the hydrocarbon emission appears to compete with the reduction of the CO 2 emission. Diesel seemed to produce less CO and hydrocarbons than gasoline when auto-ignited. An example of emission reduction control is presented in this paper.

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Infrared absorption for measurement of hydrocarbon concentration in fuel/air mixtures (MAST-B-LIQUID)

Cited by 41 publications

References 38 publications

Computed Tomography of Chemiluminescence (CTC): Instantaneous 3D measurements and Phantom studies of a turbulent opposed jet flame

Computed Tomography of Chemiluminescence (CTC): Instantaneous 3D measurements and Phantom studies of a turbulent opposed jet flame

Laser absorption spectroscopy for combustion diagnosis in reactive flows: A review

Influence of fuel type, dilution and equivalence ratio on the emission reduction from the auto-ignition in an Homogeneous Charge Compression Ignition engine

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