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 10 of 10 for “"Evaporation-condensation"”.
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Micro-Scale Simulation of Evaporation, Condensation and Transport in Porous Media
… to capture complexities involved in the evaporation and condensation processes. Therefore, a numerical scheme based on the Volume-of-Fluid method was implemented using the OpenFOAM open-source CFD package along with four phase change models. The aforementioned approach is extended in the …
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A monolithically integrated thermo-adsorptive battery
… thermal battery, interdigitated adsorption and evaporation sites create hot and cold battery terminals analogous to the positive and negative terminals in an electrical battery. This work presents the new thermal battery concept, with a particular focus on the design required to overcome mass …
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Kinetics of Heat and Mass Transfer Near the Liquid-Vapor Interface
Evaporation and condensation can be seen in our daily lives but also play a key role in technologies that drive our modern society, such as power generation, distillation, refrigeration, and thermal management for buildings and electronics. Over the past century, great advances have been made in …
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Development of a Novel Fine Coal Cleaning and Dewatering Technology
… The non-polar liquid, which has a low heat of evaporation, is then recovered by evaporation/condensation and recycled back through the process. The research work described in this document focused on the engineering development of this innovative process using batch laboratory and continuous …
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Radiative impacts on water mist/cloud droplet condensative growth
… droplet growth significantly in the 20 to 80 µm condensation-coalescence bottleneck regime. The droplet size distributions measured were fit with Weibull, Gaussian, and Lorentzian distribution functions, and the Gaussian distribution fit best. The results demonstrated that the radiatively induced …
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Catastrophic cooling in solar coronal loops : thermal instability as a road to complex evolution
… and leads to the formation of dense, cool plasma condensations. The first part of the work focuses on plasma condensations in short cool loops, which presumably constitute the solar transition region, and describes how the catastrophic cooling process leads to transient brightenings in spectral …
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CFD Modeling and Optimization Analysis of Thermal Energy Storage Based Solar Collectors
… (VOF) approach is adopted to simulate two-phase (evaporation-condensation process) phenomena inside a heat pipe. The result showed a 0.78% increase in numerical model accuracy when the heat pipe is simulated as a two-phase device in comparison with the simplified approach (in which HP is …
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NUMERICAL AND EXPERIMENTAL ANALYSIS OF HEAT PIPES WITH APPLICATION IN CONCENTRATED SOLAR POWER SYSTEMS
… to a confined jet impingement. Therefore, the condensation is not uniform over the main condenser. The feature that makes the numerical procedure distinguished from other available techniques is its ability to simulate non-uniform condensation of the working fluid in the condenser section. The …
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Enhancing the performance of a self-oscillating fluidic heat engine (SOFHE) through thermodynamic cycle and phase change characterization
… P-V) et le changement de phase (évaporation-condensation). Le SOFHE est proposé pour la récolte d'énergie thermique, couplé à un transducteur électromécanique, pour alimenter des capteurs sans fil utilisés dans l'Internet des objets (IoT). Le SOFHE est une bulle de vapeur piégée par un …