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Proceedings Paper

Infrared system for methanol droplet temperature measurement
Author(s): Leonard Nana; Jean A. Farre; Andre Giovannini; Nicolas Naudin
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Paper Abstract

Our objective is the development of an infrared system which is able to measure the temperature of a droplet, in order to validate theoretical kinetics models of heating and vaporization. A mathematical model has been derived to compute the performance in terms of sensitivity (signal-noise ratio) of an experimental system that measures the temperature of a methanol droplet using IR thermography. Based on that simulation, an experimental system working in the long wavelength range [8 - 12 micrometers ], has been built and characterized in terms of temperature calibration, and in terms of space and temperature resolutions. Then the system has been used to measure the temperature of a fixed methanol evaporating droplet. Finally, we propose a technique to track a moving droplet injected in a aerothermodynamic facility and simultaneously to measure its temperature and eventually its diameter along the trajectory.

Paper Details

Date Published: 6 April 1993
PDF: 12 pages
Proc. SPIE 1933, Thermosense XV: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (6 April 1993); doi: 10.1117/12.141975
Show Author Affiliations
Leonard Nana, CERT-ONERA and ENSAE (Burkina Faso)
Jean A. Farre, CERT-ONERA and ENSAE (France)
Andre Giovannini, CERT-ONERA and Univ. Paul Sabatier (France)
Nicolas Naudin, CERT-ONERA and ENSAE (France)

Published in SPIE Proceedings Vol. 1933:
Thermosense XV: An International Conference on Thermal Sensing and Imaging Diagnostic Applications
Lee R. Allen, Editor(s)

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