Near Infra-Red Chemical Species Tomography of Sprays of Volatile Hydrocarbons

F. P. Hindle; S. J. Carey; K. B. Ozanyan; D. E. Winterbone; E. Clough; H. McCann

doi:10.1524/teme.2002.69.7-8.352

Near Infra-Red Chemical Species Tomography of Sprays of Volatile Hydrocarbons

F. P. Hindle, S. J. Carey, K. B. Ozanyan, D. E. Winterbone, E. Clough, H. McCann

Research output: Contribution to journal › Article › peer-review

Abstract

We report an All-Opto-Electronic tomography system that is sensitive to hydrocarbon vapour distribution, or liquid spray distribution, with temporal resolution of over 3000 frames per second. A tomography system comprising 32 channels has been built and tested. For chemical sensitivity to saturated hydrocarbons, we exploit the principle of Near Infra-Red (NIR) absorption at 1700 nm relative to a reference wavelength, using laser diode sources whose technology is based on that of the communications industry. Images are obtained from a laboratory set-up incorporating both gaseous injection and a liquid Gasoline Direct Injection (GDI) system. The performance of a prototype system on a running GDI engine is reported. The difficulty in performing concentration measurements of the gaseous fuel within the liquid spray region is shown, and means to improve this performance are discussed. However, it has been found possible to image the liquid spray cone using attenuation of the reference beam. These images correlate well with other techniques [1].

Original language	English
Pages (from-to)	352-357
Number of pages	5
Journal	Technisches Messen
Volume	69
Issue number	7-8
DOIs	https://doi.org/10.1524/teme.2002.69.7-8.352
Publication status	Published - Jul 2002

Keywords

Combustion
Engine
Hydrocarbons
Infrared absorption
Tomography

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10.1524/teme.2002.69.7-8.352

Cite this

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title = "Near Infra-Red Chemical Species Tomography of Sprays of Volatile Hydrocarbons",

abstract = "We report an All-Opto-Electronic tomography system that is sensitive to hydrocarbon vapour distribution, or liquid spray distribution, with temporal resolution of over 3000 frames per second. A tomography system comprising 32 channels has been built and tested. For chemical sensitivity to saturated hydrocarbons, we exploit the principle of Near Infra-Red (NIR) absorption at 1700 nm relative to a reference wavelength, using laser diode sources whose technology is based on that of the communications industry. Images are obtained from a laboratory set-up incorporating both gaseous injection and a liquid Gasoline Direct Injection (GDI) system. The performance of a prototype system on a running GDI engine is reported. The difficulty in performing concentration measurements of the gaseous fuel within the liquid spray region is shown, and means to improve this performance are discussed. However, it has been found possible to image the liquid spray cone using attenuation of the reference beam. These images correlate well with other techniques [1].",

keywords = "Combustion, Engine, Hydrocarbons, Infrared absorption, Tomography",

author = "Hindle, {F. P.} and Carey, {S. J.} and Ozanyan, {K. B.} and Winterbone, {D. E.} and E. Clough and H. McCann",

year = "2002",

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doi = "10.1524/teme.2002.69.7-8.352",

language = "English",

volume = "69",

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journal = "Technisches Messen",

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AU - Hindle, F. P.

AU - Carey, S. J.

AU - Ozanyan, K. B.

AU - Winterbone, D. E.

AU - Clough, E.

AU - McCann, H.

PY - 2002/7

Y1 - 2002/7

N2 - We report an All-Opto-Electronic tomography system that is sensitive to hydrocarbon vapour distribution, or liquid spray distribution, with temporal resolution of over 3000 frames per second. A tomography system comprising 32 channels has been built and tested. For chemical sensitivity to saturated hydrocarbons, we exploit the principle of Near Infra-Red (NIR) absorption at 1700 nm relative to a reference wavelength, using laser diode sources whose technology is based on that of the communications industry. Images are obtained from a laboratory set-up incorporating both gaseous injection and a liquid Gasoline Direct Injection (GDI) system. The performance of a prototype system on a running GDI engine is reported. The difficulty in performing concentration measurements of the gaseous fuel within the liquid spray region is shown, and means to improve this performance are discussed. However, it has been found possible to image the liquid spray cone using attenuation of the reference beam. These images correlate well with other techniques [1].

AB - We report an All-Opto-Electronic tomography system that is sensitive to hydrocarbon vapour distribution, or liquid spray distribution, with temporal resolution of over 3000 frames per second. A tomography system comprising 32 channels has been built and tested. For chemical sensitivity to saturated hydrocarbons, we exploit the principle of Near Infra-Red (NIR) absorption at 1700 nm relative to a reference wavelength, using laser diode sources whose technology is based on that of the communications industry. Images are obtained from a laboratory set-up incorporating both gaseous injection and a liquid Gasoline Direct Injection (GDI) system. The performance of a prototype system on a running GDI engine is reported. The difficulty in performing concentration measurements of the gaseous fuel within the liquid spray region is shown, and means to improve this performance are discussed. However, it has been found possible to image the liquid spray cone using attenuation of the reference beam. These images correlate well with other techniques [1].

KW - Combustion

KW - Engine

KW - Hydrocarbons

KW - Infrared absorption

KW - Tomography

U2 - 10.1524/teme.2002.69.7-8.352

DO - 10.1524/teme.2002.69.7-8.352

M3 - Article

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JO - Technisches Messen

JF - Technisches Messen

IS - 7-8

ER -

Near Infra-Red Chemical Species Tomography of Sprays of Volatile Hydrocarbons

Abstract

Keywords

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