Laser-induced fluorescence thermometry of supercritical CO2 flows inside a micro-channel | Zendy

Suhyeon Park | Zendy; Anatoly Parahovnik | Zendy; Yoav Peles | Zendy; Subith Vasu | Zendy

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Laser-induced fluorescence thermometry of supercritical CO₂ flows inside a micro-channel

Author(s) -

Suhyeon Park,

Anatoly Parahovnik,

Yoav Peles,

Subith Vasu

Publication year - 2021

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.422854

Subject(s) - materials science , supercritical fluid , optics , fluorescence , rhodamine 6g , laser induced fluorescence , laser , dye laser , rhodamine , analytical chemistry (journal) , temperature measurement , supercritical carbon dioxide , chemistry , physics , organic chemistry , chromatography , quantum mechanics

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.

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