Laser-induced fluorescence thermometry of supercritical CO 2 flows inside a micro-channel.

Autor: Park S, Parahovnik A, Peles Y, Vasu SS
Jazyk: angličtina
Zdroj: Optics letters [Opt Lett] 2021 Apr 15; Vol. 46 (8), pp. 1924-1927.
DOI: 10.1364/OL.422854
Abstrakt: This work demonstrates a thermometric technique using laser-induced fluorescence (LIF) in supercritical carbon dioxide flows in a micro-channel. Rhodamine 6G was used as a temperature-sensitive fluorescent dye. The flow conditions were at a pressure of 7.9 MPa and temperature in the range of 23°-90°C. 2D spatial distributions and time-resolved temperature profiles were obtained at this high pressure. Measured LIF signals showed close relations to the temperatures obtained from resistance temperature detectors.
Databáze: MEDLINE