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Experiments in Fluids

, 59:102 | Cite as

Comparison of 2c- and 3cLIF droplet temperature imaging

  • Johannes Palmer
  • Manuel A. Reddemann
  • Valeri Kirsch
  • Reinhold Kneer
Research Article

Abstract

This work presents “pulsed 2D-3cLIF-EET” as a measurement setup for micro-droplet internal temperature imaging. The setup relies on a third color channel that allows correcting spatially changing energy transfer rates between the two applied fluorescent dyes. First measurement results are compared with results of two slightly different versions of the recent “pulsed 2D-2cLIF-EET” method. Results reveal a higher temperature measurement accuracy of the recent 2cLIF setup. Average droplet temperature is determined by the 2cLIF setup with an uncertainty of less than 1 K and a spatial deviation of about 3.7 K. The new 3cLIF approach would become competitive, if the existing droplet size dependency is anticipated by an additional calibration and if the processing algorithm includes spatial measurement errors more appropriately.

Notes

Acknowledgements

This work was performed as part of the Cluster of Excellence “Tailor-Made Fuels from Biomass”, which is funded by the Excellence Initiative of the German federal and state governments to promote science and research at German universities.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.RWTH Aachen UniversityInstitute of Heat and Mass TransferAachenGermany

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