Project

Spatial Control of Condensation by Hydrophilic Seeding

Publisher

Supervisor

Location

Greater Copenhagen area

Project description:

Much effort to understand the governing mechanisms of dropwise condensation has been expended over several decades. A complete description is still missing as a result of the complexity of the phenomenon, and still today, researchers are giving much attention to this topic, owing to its importance for several scientific fields such as energy conversion, water harvesting, thermal management systems, and anti-icing. In particular, an improved understanding will unlock the possibility of engineering the position of condensed droplets on a surface. The random nature of condensation in both time and space impedes the spatial control of condensation. However, the ability to control the spatial positions of condensed droplets would allow the creation of microdroplet arrays, which could be a game changer for assays, e.g., biochemical assays.

Content:

Preparation of colloidal suspensions and characterization of particle distribution after evaporation: Our collaborators provide various stock suspensions containing micronsized hydrophilic particles. From this, a number of suspensions with different particle concentrations are prepared and let to evaporate on both water-loving and repellent materials. The particle pattern at the completion of evaporation is characterized using optical or scanning electron microscopy. We may also attempt to create a model which a priory can predict the resulting pattern.
Condensation pattern: On the samples prepared by evaporation, condensation is hereafter performed. In general, water has an affinity for water-loving materials, which should alter the normal randomness of the condensation. Your job is to show that this is, in fact, the case, and you have an opportunity to play around with the various parameters affecting the condensation pattern. Furthermore, we will take advantage of the first results to show a brand new method to characterize wetting properties of materials, which, for instance, is important for the paint industry, but is information which can also be used to create anti-fogging and anti-icing surfaces.

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Contact

Company / Organization

DTU Nanolab

Name

Rafael J. Taboryski

Position

Lektor

Mail

rata@dtu.dk

Supervisor info

BSc in Physics and Nanotechnology

Supervisor

Rafael J. Taboryski

Co-supervisors

Ada-Ioana Bunea

ECTS credits

5 - 35

Type

BSc project, MSc thesis, Special course

MSc in Advanced Materials and Health Care Engineering

Supervisor

Rafael J. Taboryski

Co-supervisors

Ada-Ioana Bunea

ECTS credits

5 - 35

Type

BSc project, MSc thesis, Special course

MSc in Engineering, Mechanical Engineering

Supervisor

Rafael J. Taboryski

Co-supervisors

Ada-Ioana Bunea

ECTS credits

5 - 35

Type

BSc project, MSc thesis, Special course

MSc in Materials and Manufacturing Engineering

Supervisor

Rafael J. Taboryski

Co-supervisors

Ada-Ioana Bunea

ECTS credits

5 - 35

Type

BSc project, MSc thesis, Special course

MSc in Physics and Nanotechnology

Supervisor

Rafael J. Taboryski

Co-supervisors

Ada-Ioana Bunea

ECTS credits

5 - 35

Type

BSc project, MSc thesis, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

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