Browsing Waterloo Research by Author "Qin, Ning"
Now showing items 1-8 of 8
-
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. I. Experimental observations
Qin, Ning; Wen, John Z.; Ren, Carolyn L. (American Physical Society (APS), 2017-04-24)This is the first part of a two-part study on a partially miscible liquid-liquid flow (liquid carbon dioxide and deionized water) which is highly pressurized and confined in a microfluidic T-junction. Our main focuses are ... -
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. II. Theoretical justifications and modeling
Qin, Ning; Wen, John Z.; Ren, Carolyn L. (American Physical Society (APS), 2017-04-24)This is the second part of a two-part study on a partially miscible liquid-liquid flow ( carbon dioxide and deionized water) that is highly pressurized and confined in a microfluidic T-junction. In the first part of this ... -
Hydrodynamic shrinkage of liquid CO2 Taylor drops in a straight microchannel
Qin, Ning; Wen, John Z.; Ren, Carolyn L. (IOP Publishing, 2018-02-12)Hydrodynamic shrinkage of liquid CO2 drops in water under a Taylor flow regime is studied using a straight microchannel (length/width similar to 100). A general form of a mathematical model of the solvent-side mass transfer ... -
Numerical Study on Single Flowing Liquid and Supercritical CO2 Drop in Microchannel: Thin Film, Flow Fields, and Interfacial Profile
Qin, Ning; Feng, Yu; Wen, John Z.; Ren, Carolyn L. (MDPI, 2018-06-01)Taylor segments, as a common feature in two- or multi-phase microflows, are a strong flow pattern candidate for applications when enhanced heat or mass transfer is particularly considered. A thin film that separates these ... -
On nonequilibrium shrinkage of supercritical CO2 droplets in a water-carrier microflow
Qin, Ning; Wen, John Z.; Chen, Baixin; Ren, Carolyn L. (AIP Publishing, 2018-07-16)We report an experimental study on the hydrodynamic shrinkage of supercritical carbon dioxide (scCO(2)) microdroplets during a nonequilibrium process. After scCO(2 )microdroplets are generated by water shearing upon a ... -
Photocatalytic performances of ZnO nanoparticle film and vertically aligned nanorods in chamber-based microfluidic reactors: Reaction kinetics and flow effects
Zhao, Pei; Qin, Ning; Wen, John Z.; Ren, Carolyn L. (Elsevier BV, 2017-07-15)The nanoparticle seed layer (a film) and vertically aligned nanorods of zinc oxide (ZnO) with different lengths were fabricated within a novel chamber-based microfluidic (microchamber) reactor with a varying height of ... -
Polyamide 6.6 separates oil/water due to its dual underwater oleophobicity/underoil hydrophobicity: Role of 2D and 3D porous structures
Zhao, Pei; Qin, Ning; Ren, Carolyn L.; Wen, John Z. (Elsevier, 2019-02-01)Porous polyamide functionalized by plasma or various coatings has been investigated for oil/water separation. In literature, polyamide has rarely been studied for oil removal, and this work investigated the performance of ... -
Polyamide 6.6 separates oil/water due to its dual underwater oleophobicity/underoil hydrophobicity: Role of 2D and 3D porous structures
Zhao, Pei; Qin, Ning; Ren, Carolyn; Wen, John Z. (Elsevier BV, 2019-02-01)Porous polyamide functionalized by plasma or various coatings has been investigated for oil/water separation. In literature, polyamide has rarely been studied for oil removal, and this work investigated the performance of ...