Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1188 for “"evaporation"”.
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Re-evaporation nuclei and evaporation in a Wilson cloud chamber
… techniques are developed for observing droplet evaporation in the submicroscopic size range. An expansion-compression cloud chamber with an atmosphere of tank helium saturated with water vapor is employed. This work was undertaken with the aim of examining submicroscopic droplet behavior and the …
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Evaporation from nanoporous membranes
… thermal management techniques. Thin film evaporation has emerged as one of the most promising thermal management solutions. High heat transfer rates can be achieved in thin films of liquids due to a small conduction resistance through the film to the evaporating interface. In this thesis, …
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Study of Surface Tension, Natural Evaporation, and Subcooled Boiling Evaporation of Aqueous Surfactant Solutions
… concentration and its effect on solution evaporation under natural convection and subcooled pool boiling is examined through experimental methods. Aqueous solutions of sodium lauryl sulfate (SLS), ECOSURFTM EH-14, and ECOSURFTM SA-9 are used in this study. SLS is an anionic surfactant …
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Mathematical modelling of droplet evaporation
… liquids as they evaporate in different modes of evaporation. The thesis focuses on diffusion limited evaporation in which the diffusion of vapour in the surrounding atmosphere governs the evaporation rate of the droplet.;First, we investigate the combined influences of the initial contact angle …
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Applications of Field-Evaporation Theory
… with the application of the theory of the evaporation of metal atoms from a surface under the influence of a strong electric field. The theory of field evaporation under discussion, put forward by Forbes, assumes that the shape of the atomic bonding-well is parabolic and also that a …
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Droplet evaporation dynamics on surfaces
Droplet evaporation governs many man-made and natural processes. Hence, it has been widely studied by many scientists over the past century. With the recent advancements in nanotechnology, many surfaces for two phase heat transfer have been developed including hydrophobic, biphilic and …
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Concentrating human urine by evaporation
… urine treatment and concentration options with evaporation being the most common. The experiments conducted in previous literature differed to the experiments in this thesis due to the chosen operating conditions (pH, temperature, humidity etc.) as well as the type of urine studied (fresh, …
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Evaporation from free water surfaces
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1958.
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On the evaporation of sessile droplets
… of sessile droplets in different modes of evaporation and their lifetimes are investigated. The thesis focuses on situations in which the diffusion of vapour into the surrounding atmosphere is the rate-limiting mechanism of evaporation. First, we describe the evolution of droplets …
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Evaporation study in Grand River basin
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1935
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Multisource Evaporation of Perovskite Solar Cells
… structure orientations. Excess PbI2 during the evaporation can improve the film moisture stability and photoluminescence quantum efficiency. The importance of deposition rate is also highlighted here, showing the issue with halide uniformity. Furthermore, non-radiative losses in p-i-n …
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The classical theory of field evaporation
The field evaporation literature has been carefully analysed and is shown to contain various confusions. After redefining consistent terminology, this thesis investigates the mechanisms of field evaporation, in particular, the relevance of the theoretical mechanisms by analysing the available …
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The effect of evaporation of frontogenesis
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1989.
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Evaporation from nanopores : probing interfacial transport
Evaporation, a commonly found phenomenon in nature, is widely used in thermal management, water purification, and steam generation as it takes advantage of the enthalpy of vaporization. Despite being extensively studied for decades, the fundamental understanding of evaporation, which is necessary …
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Inducing Liquid Evaporation with Hygroscopic Gels
… The hygroscopic gel can cause long-range evaporation of water from the sweat leading tocrystallization of minerals which can ultimately clog the sweat duct and prevent sweating.
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Molecular Dynamics Studies of Thin-Film Evaporation: The Effect of Graphene-Coated Silicon on Water Evaporation Behavior
… of next-generation electronic systems. Thin-film evaporation is one of the most promising solutions, because it takes advantage of the large amount of latent heat in the phase change process. It is important to understand the relationship between interfacial thermal resistance, surface …
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MACHINE LEARNING APPROACH FOR EVAPORATION DUCT NOWCAST
The Evaporation Duct Height (EDH) and Strength (EDS) are properties of the evaporation duct that affects electromagnetic (EM) signal propagation close to the air-sea interface. Hence, the accuracies of EDH and EDS affect radar and communication propagation, which can be exploited for detection and …
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Falling-film evaporation over horizontal rectangular tubes
… study is the first investigation of falling-film evaporation over horizontal rectangular tubes. This geometry is representative of the external profile of microchannel tubes. Incorporating these designs into shell-and-tube heat exchangers has the potential to provide compact, high-performance …
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