Publication de 4 numéros par an
ISSN Imprimer: 1065-3090
ISSN En ligne: 1940-4336
Indexed in
VISUALIZATION OF SURFACE TEMPERATURE BY THE LIFETIME-BASED PHOSPHOR THERMOMETRY USING A HIGH-SPEED CAMERA
RÉSUMÉ
A surface temperature inside an optical engine with or without heating the intake gas was measured using the phosphor thermometry (PT) in view of a combined measurement of the velocity and temperature map. The temperature distribution was measured by the PT using only 3 or 10 images, which were recorded by the non-intensified high-speed CMOS camera, by taking into account the local pixel nonlinearity. The temporal standard deviation of the decay constant was 0.17−0.33% and it changed 0.15% by the position, indicating that the nonuniformity of the pixel nonlinearity was large. With the local calibration, the spatial fluctuation of the measured temperature was 0.10−0.53°C. This technique was applied to temperature measurement in the optical engine, resulting in reasonable temperature maps.
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Fuhrmann N., Schild M., Bensing D., Kaiser S. A., Schulz C., Brübach J., Dreizler A., Two-dimensional cycle-resolved exhaust valve temperature measurements in an optically accessible internal combustion engine using thermographic phosphors, Applied Physics B, 106, 4, 2012. Crossref
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Someya Satoshi, Okura Yasuhiro, Munakata Tetsuo, Okamoto Koji, Instantaneous 2D imaging of temperature in an engine cylinder with flame combustion, International Journal of Heat and Mass Transfer, 62, 2013. Crossref
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Ishii Keiko, Fumoto Koji, Temperature visualization and investigation inside evaporator of pulsating heat pipe using temperature-sensitive paint, Applied Thermal Engineering, 155, 2019. Crossref