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.
Results
Showing 1 to 8 of 8 for “"Jumping-Droplet Condensation"”.
-
A comprehensive model of electric-field-enhanced jumping-droplet condensation on superhydrophobic surfaces
… micro/nanostructured surfaces for dropwise condensation have recently received significant attention due to their potential to enhance heat transfer performance by shedding positively charged water droplets via coalescence-induced droplet jumping at length scales below the capillary length, …
-
Evaporative cooling via jumping droplet condensation on superhydrophobic surfaces for localized car air conditioning
… to these problems uses evaporative cooling via jumping droplet condensation on superhydrophobic surfaces to provide localized cooling with 100 times less power input. Jumping droplet condensation takes place when microscale droplets coalesce on superhydrophobic surfaces and excess surface energy …
-
Exploiting Interfacial Phenomena to Expel Matter from its Substrate
… to be fully understood. Even though we know how jumping-droplet condensation offers significantly better heat transfer performance than regular dropwise condensation and can liberate foreign particles, fundamental questions on the effect of surface orientation on jumping-droplet condensation or …
-
Liquid-vapor phase change phenomena for heat exchangers and electronics cooling
… change of water is widely observed. Water vapor condensation is vital to many natural and industrial processes such as building environmental control, power generation, and water desalination. Jumping-droplet condensation of water has recently been shown to have a 10X heat transfer enhancement …
-
Electrowetting study of jumping droplets on hydrophobic surfaces
Recent studies have shown that jumping-droplet-enhanced condensation has higher heat transfer than state-of-the-art dropwise condensing surfaces by -30-40%. Jumping-droplet condensation occurs due to the conversion of surface energy to kinetic energy during the coalescence of microscale droplets, …
-
Heat transfer through a condensate droplet on hydrophobic and nanostructured superhydrophobic surfaces
… the fundamental mechanisms governing vapor condensation on non-wetting surfaces is crucial to a wide range of energy and water applications. In this thesis, we reconcile classical droplet growth modeling barriers by utilizing two-dimensional axisymmetric numerical simulations to study …
-
Enhanced coalescence-induced jumping droplet departure
Water vapor condensation on superhydrophobic surfaces has received much attention in recent years due to its ability to shed water droplets at length scales three decades smaller than the capillary length (~ 1mm) via coalescence induced droplet jumping. Jumping-droplet condensation has been …
-
Developing an active, high-heat-flux thermal management strategy for power electronics via jumping-droplet phase-change cooling
… electronics via electric-field-enhanced (EFE) jumping-droplet condensation. To test the viability of EFE condensation for electronic hot spot cooling, an experimental setup was developed to remove heat via droplet evaporation from single and multiple high-power gallium nitride (GaN) transistors …