Infrared thermospectroscopic imaging of heat and mass transfers in laminar microfluidic reactive flows
نویسندگان
چکیده
In this work, a novel image-based method is presented to characterize the heat and mass transfer rates in Hele-Shaw microfluidic reactor. A Fourier transform infrared (FTIR) spectrometer used transmission mode combination with an (IR) camera simultaneously measure molar concentration thermal fields chip within few seconds. classical exothermic NaOH + HCl ? NaCl H2O chemical reaction produce multiphase flow source The of all species are measured using IR spectrum mid-IR region, obtained from proper emission. quantitative aspect illustrated by comparing profiles reactor model, based on advection-diffusion-reaction equations. good agreement between model experimental data validates method, expected strong diffusion-limited regime laminar achieved. Thus, results work provide new efficient thermospectroscopic imaging perform rapid, contactless operando characterizations reactive flows.
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ژورنال
عنوان ژورنال: Chemical engineering journal advances
سال: 2021
ISSN: ['2666-8211']
DOI: https://doi.org/10.1016/j.ceja.2021.100166