An Investigation of the Evaporation Dynamics of Water Droplets and Na-Cl Water Droplets Suspended in Air by Acoustic Levitation

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dc.contributor.advisorGates, Ian Donald
dc.contributor.authorBunio, Lyndon
dc.contributor.committeememberBenneker, Anne M.
dc.contributor.committeememberHejazi, Seyed Hossein
dc.contributor.committeememberKaran, Kunal
dc.date2020-11
dc.date.accessioned2020-09-25T20:18:42Z
dc.date.available2020-09-25T20:18:42Z
dc.date.issued2020-09-23
dc.description.abstractEvaporation of liquid droplets is ubiquitous in nature and has been used across several industrial processes. Many evaporation studies of supported droplets have been done through time, starting with investigations of sessile droplets on solid surfaces, to droplets hanging on thin filaments, to droplets supported on superhydrophobic materials. An emerging method to study free droplets is by using acoustic levitation, a tool that has allowed for investigations of evaporation and crystallization of true free droplets. In the first part of the study, the evaporation of pure water is first investigated and compared to a novel theory for droplet evaporation which includes both diffusive transport away from the system and thermal conduction into it. The results demonstrate that the major control on the evaporation rate is diffusion. In the second part of the study, the evaporation and crystallization dynamics of NaCl water solution droplets is examined with different concentrations. Qualitative results describe the crystallization process and the ‘cup’ shape produced for NaCl concentration ranging from 225-300 g/L. Higher concentration (325 g/L) yield a crystal sphere around the droplet. Quantitative findings compared to theory shows that the NaCl solutions require an enhanced diffusion coefficient to better match the experimental data.en_US
dc.identifier.citationBunio, L. (2020). An Investigation of the Evaporation Dynamics of Water Droplets and Na-Cl Water Droplets Suspended in Air by Acoustic Levitation (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/38238
dc.identifier.urihttp://hdl.handle.net/1880/112578
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectAcoustic levitationen_US
dc.subjectWater evaporationen_US
dc.subjectDroplet evaporationen_US
dc.subjectwater dropleten_US
dc.subjectcontactless processingen_US
dc.subjectNaCl-water dropleten_US
dc.subjectSalt Crystallizationen_US
dc.subject.classificationEngineeringen_US
dc.subject.classificationEngineering--Chemicalen_US
dc.subject.classificationMaterials Scienceen_US
dc.subject.classificationEngineering--Mechanicalen_US
dc.titleAn Investigation of the Evaporation Dynamics of Water Droplets and Na-Cl Water Droplets Suspended in Air by Acoustic Levitationen_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Chemical & Petroleumen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrueen_US
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