Wyslouzil Aerosol Lab
Research
The Wyslouzil Group set a new record for creating ice crystals that have a near-perfect cubic arrangement of water molecules—a form of ice that may exist in the coldest high-altitude clouds but is extremely hard to make on Earth.
The ability to make and study cubic ice in the laboratory could improve computer models of how clouds interact with sunlight and the atmosphere—two keys to understanding climate change
Ice Formation Rates
In 2018, Wyslouzil measured the ice formation rates at temperatures near 225 K and found that in this region the temperature dependence of the rates changes dramatically. Our measurements merge smoothly with those at higher and lower temperature but are difficult to predict with standard rate expressions.
Homogeneous nucleation of ice from supercooled liquid water is an important process in ice formation in clouds as well as in technological processes including food preservation. The ability to make and study cubic ice could improve
computer models that enhance our understanding of water and provide keys to understanding climate change.
In most industrial applications and in the atmosphere, more than one condensible species is present, and the rates of new particle formation and growth may be severely under predicted if interactions between the species are ignored. In our group we use a continuous flow supersonic nozzle apparatus to explore nucleation, condensation, and aerosol evolution at supersaturations and expansion rates that are comparable to those found in turbomachinery, jet exhausts, and steam turbines. By conducting small angle neutron scattering and pressure trace experiments, nucleation rates can be measured that are 6 – 8 orders of magnitude higher than in any other type of equipment.
INSIGHT INTO HETEROGENEOUS CONDENSATION OF CO2 ONTO ALKANE
Barbara Wyslouzil recently explored the heterogeneous condensation of CO2 onto alkane nanodroplets and found that CO2 does not condense until the pressures and temperatures are close to CO2’s extrapolated vapor-liquid equilibrium line and the alkane particles have started to freeze. Depending on the formation process, the resultant particles can adopt a core-shell structure or have CO2 domains in the form of cubes or needles.
Impact: Natural gas can contain significant amounts of CO2 as well as higher hydrocarbons. Supersonic separation is an alternative method to remove condensable material from natural gas. Understanding how and when different constituents in the mixture condense is important to improving the design and operation of these devices.
Group Members
Current:
Yensil Park
Kehinde Ogunronbi
Kayane Dingilian
Tong Sun
Jiaqi Luo
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MS Students |
Title of Thesis (and Co-advisor) |
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Michelle Whipple (1995) |
Deposition of Mist onto Hairy Root Cultures, Co-Advised with P. Weathers |
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Shuyu Chen (1996) |
Binary Nucleation in Phase Separating Systems
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Ray Waterbury (1998) |
The Growth and Development of Single Hairy Roots of Artemisia annua in Nutrient Mist and Liquid Culture, Co-Advised with P. Weathers |
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Uta Dieregsweiler (2001) |
Binary Condensation of D2O – ethanol mixtures |
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Amjad Khan (2002) |
Measuring Nucleation Rates in a Supersonic Nozzle
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Paolo Paci (2003) |
Monitoring Gas Phase Concentrations in a Supersonic Nozzle using Tunable Diode Laser Absorption Spectrometry |
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Andrew Roberts (2003) |
Aerosol Delivery of Mammalian Cells for Tissue Engineering, Co-Advised with L. Bonassar |
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Murad Gharibeh (WPI/OSU 2004) |
Homogeneous Condensation of Alcohols in a Supersonic Nozzle |
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Roderick Manuzen (OSU, 2005) |
Controlling Air Pollution in CAFOs FABE student Co-Advised with L. Zhao |
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Ruiyang Xiao (OSU, 2008) |
Freezing Rate of Highly Sub-cooled H2O/D2O Droplets
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Nour Younes (OSU, 2008) |
Non Thesis Project: Electrospraying Alginate Particles |
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David Winkel (OSU, 2009) |
Non Thesis Project: Calibration standards for small angle x-ray scattering |
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Alyssa Robson (OSU, 2013) |
Surfactant film properties via ASDA Co-advised with H. Allen |
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PhD Students |
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Chinmay Chatterjee (WPI, 1996) |
Design, Modeling, and Validation of a Nutrient Mist Bioreactor for Differentiated Hairy Root Culture, Co-Advised with D. Walcerz and P. Weathers |
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Melanie Correll (WPI, 2001) |
A Study of Micropropogation using a Nutrient Mist Bioreactor to Control Culture Conditions, Co-advised with P. Weathers and D. Walcerz |
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Yoo Jeong Kim (WPI, 2001)
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Assessment of Bioreactors for Transformed Root Cultures, Co-Advised with P. Weathers |
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Christopher Heath (WPI, 2001) |
Binary Condensation in a Supersonic Nozzle.
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Somnath Sinha (OSU, 2008) |
Experimental and Modeling Study of Condensation in Supersonic Nozzles |
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Yun Wu (OSU 2009) |
Aerosol Formation of Biocompatible Micro/nanoparticles |
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Hartawan Laksmono (OSU, 2010) |
Experimental Study of Methanol Condensation and Nucleation in Supersonic Nozzles |
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Kelly Distel (OSU, 2011) |
Binary Nucleation of n-butanol and Deuterium Oxide Conducted in Supersonic Nozzles |
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Ashutosh Bhabhe (OSU, 2012) |
Experimental Study of Condensation and Freezing in a Supersonic Nozzle |
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Anthony Duong (OSU, 2013) |
Electrohydrodynamic Spray Fabrication of Microparticles and Nanoparticles for Use as Biomedical Delivery Vehicles |
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Harshad Phatak (OSU, 2013) |
Nucleation and Droplet Growth During Co-condensation of Nonane and D2O in a Supersonic Nozzle |
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Viraj Modak (OSU, 2015) |
Surface Freezing in n-Alkanes: Experimental and Molecular Dynamics Studies |
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Matt Gallovic (OSU, 2016) |
Acid-Sensitive Polymer Microparticles for Subunit Vaccine Delivery Co advised with K. Ainslie |
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Gauri Nabar (OSU, 2017) |
Encapsulation of nanoparticles and polymers within block copolymer micelles prepared by the emulsion and solvent evaporation method Co advised with J. Winter |
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Matt Souva (OSU, 2017) |
High Throughput Block Copolymer Nanoparticle Assembly Methods Co advised with J. Winter |
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Andrew Amaya (OSU, 2017) |
Freezing Supercooled Water Nanodroplets |
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Yensil Park (OSU, 2018) |
Heterogeneous nucleation of CO2 on alkane nanoparticles |
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Kil Ho Lee (OSU, Exp 2019) |
Flash nanoprecipitation for micelluar nanoparticle production Co advised with J. Winter |
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Kehinde Ogunronbe (OSU, Exp 2019) |
Phase Transitions n-alkane nanodroplets |
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Kayane Dingilian (OSU, Exp 2020) |
Homogeneous Condensation of CO2 |
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Tong Sun (OSU, Exp 2022) |
Freezing of Water |