Imperial College London
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ProfessorAlexTaylor

Faculty of Engineering, Department of Mechanical Engineering

Professor
 
 
 
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Contact

 

+44 (0)20 7594 7042a.m.taylor

 
 
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Location

 

618City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Henkel:2016:10.1364/OE.24.002542,
author = {Henkel, S and Beyrau, F and Hardalupas, I and Taylor, AMKP},
doi = {10.1364/OE.24.002542},
journal = {Optics Express},
pages = {2542--2561},
title = {Novel method for the measurement of liquid film thickness during fuel spray impingement on surfaces},
url = {http://dx.doi.org/10.1364/OE.24.002542},
volume = {24},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper describes the development and application of a novel optical technique for the measurement of liquid film thickness formed on surfaces during the impingement of automotive fuel sprays. The technique makes use of the change of the light scattering characteristics of a metal surface with known roughness, when liquid is deposited. Important advantages of the technique over previously established methods are the ability to measure the time-dependent spatial distribution of the liquid film without a need to add a fluorescent tracer to the liquid, while the measurement principle is not influenced by changes of the pressure and temperature of the liquid or the surrounding gas phase. Also, there is no need for non-fluorescing surrogate fuels. However, an in situ calibration of the dependence of signal intensity on liquid film thickness is required. The developed method can be applied to measure the time-dependent and two-dimensional distribution of the liquid fuel film thickness on the piston or the liner of gasoline direct injection (GDI) engines. The applicability of this technique was evaluated with impinging sprays of several linear alkanes and alcohols with different thermo-physical properties. The surface temperature of the impingement plate was controlled to simulate the range of piston surface temperatures inside a GDI engine. Two sets of liquid film thickness measurements were obtained. During the first set, the surface temperature of the plate was kept constant, while the spray of different fuels interacted with the surface. In the second set, the plate temperature was adjusted to match the boiling temperature of each fuel. In this way, the influence of the surface temperature on the liquid film created by the spray of different fuels and their evaporation characteristics could be demonstrated.
AU  - Henkel,S
AU  - Beyrau,F
AU  - Hardalupas,I
AU  - Taylor,AMKP
DO  - 10.1364/OE.24.002542
EP  - 2561
PY  - 2016///
SN  - 1094-4087
SP  - 2542
TI  - Novel method for the measurement of liquid film thickness during fuel spray impingement on surfaces
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/OE.24.002542
UR  - https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-24-3-2542&id=335939
UR  - http://hdl.handle.net/10044/1/29093
VL  - 24
ER  -
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