Academic literature on the topic 'Condensation droplet jumping'

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Journal articles on the topic "Condensation droplet jumping"

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Gao, Sihang, Fuqiang Chu, Xuan Zhang, and Xiaomin Wu. "Behavior of condensed droplets growth and jumping on superhydrophobic surface." E3S Web of Conferences 128 (2019): 07003. http://dx.doi.org/10.1051/e3sconf/201912807003.

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Droplets on the superhydrophobic surface can fall off the surface spontaneously, which greatly promote dropwise condensation. This study considers a continuous droplet condensation process including droplet growth and droplet jumping. A droplet growth model considered NCG is developed and droplet jumping is simulated using VOF (Volume Of Fluid) model. Al–based superhydrophobic surfaces are prepared using chemical deposition and etching method. The Al-based superhydrophobic surface has a contact angle of 157°±1° and a rolling angle of 2°±1°. An observation experiment is designed to observe drop
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Liao, Ming-Jun, Xin-Quan Ren, Zi-Han Liu, Wen-Peng Hong, and Fang-Fang Xie. "Study on the Coalescence-Induced Jumping of Droplets with Different Radii on Superhydrophobic Surface." Processes 11, no. 7 (2023): 1865. http://dx.doi.org/10.3390/pr11071865.

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The phenomenon of droplet coalescence and jumping has received increasing attention due to its potential applications in the fields of condensation heat transfer and surface self-cleaning. Basic research on the process and mechanism of coalescence-induced droplet jumping has been carried out, and some universal laws have been established. However, it is found that the focus of these studies is based on two identical droplets, and the coalescence-induced jumping with different radii is rarely investigated, which is commonly encountered in nature. Therefore, it is essential to proceed with the r
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Birbarah, Patrick, Shreyas Chavan, and Nenad Miljkovic. "Numerical Simulation of Jumping Droplet Condensation." Langmuir 35, no. 32 (2019): 10309–21. http://dx.doi.org/10.1021/acs.langmuir.9b01253.

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Chongyan, Zhao, Chen Feng, Yan Xiao, Yan He, Huang Zhiyong, and Bo Hanliang. "SIMULATION OF DROPLET SIZE DISTRIBUTION DURING JUMPING-DROPLET CONDENSATION." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27 (2019): 1748. http://dx.doi.org/10.1299/jsmeicone.2019.27.1748.

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Zhang, Lenan, Zhenyuan Xu, Zhengmao Lu, Jianyi Du, and Evelyn N. Wang. "Size distribution theory for jumping-droplet condensation." Applied Physics Letters 114, no. 16 (2019): 163701. http://dx.doi.org/10.1063/1.5081053.

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Mukherjee, Ranit, Austin S. Berrier, Kevin R. Murphy, Joshua R. Vieitez, and Jonathan B. Boreyko. "How Surface Orientation Affects Jumping-Droplet Condensation." Joule 3, no. 5 (2019): 1360–76. http://dx.doi.org/10.1016/j.joule.2019.03.004.

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Birbarah, Patrick, and Nenad Miljkovic. "Internal convective jumping-droplet condensation in tubes." International Journal of Heat and Mass Transfer 114 (November 2017): 1025–36. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.06.122.

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Nath, Saurabh, S. Farzad Ahmadi, Hope A. Gruszewski, et al. "‘Sneezing’ plants: pathogen transport via jumping-droplet condensation." Journal of The Royal Society Interface 16, no. 155 (2019): 20190243. http://dx.doi.org/10.1098/rsif.2019.0243.

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We show that condensation growing on wheat leaves infected with the leaf rust fungus, Puccinia triticina , is capable of spontaneously launching urediniospores off the plant. This surprising liberation mechanism is enabled by the superhydrophobicity of wheat leaves, which promotes a jumping-droplet mode of condensation powered by the surface energy released from coalescence events. We found that urediniospores often adhere to the self-propelled condensate, resulting in liberation rates of approximately 10 cm −2 h −1 for leaves infected with rust. Urediniospores were catapulted up to 5 mm from
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Mulroe, Megan D., Bernadeta R. Srijanto, S. Farzad Ahmadi, C. Patrick Collier, and Jonathan B. Boreyko. "Tuning Superhydrophobic Nanostructures To Enhance Jumping-Droplet Condensation." ACS Nano 11, no. 8 (2017): 8499–510. http://dx.doi.org/10.1021/acsnano.7b04481.

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Antao, Dion S., Kyle L. Wilke, Jean H. Sack, Zhenyuan Xu, Daniel J. Preston, and Evelyn N. Wang. "Jumping droplet condensation in internal convective vapor flow." International Journal of Heat and Mass Transfer 163 (December 2020): 120398. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2020.120398.

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Dissertations / Theses on the topic "Condensation droplet jumping"

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Queeney, John (John Keeler). "Evaporative cooling via jumping droplet condensation on superhydrophobic surfaces for localized car air conditioning." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100886.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 28).<br>Car air conditioning systems cool the entire cabin, which is inefficient, as only the air surrounding the passengers needs to be cooled to realize a similar effect. These air conditioning units draw large amounts of power, enough to be detrimental to fuel efficiency. This presents problems for cars with smaller engines and electric cars that lack the battery capacity to provide adequate cooling with tradi
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Mukherjee, Ranit. "Exploiting Interfacial Phenomena to Expel Matter from its Substrate." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/104925.

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Spontaneous expulsion of various forms and types of matter from their solid substrates has always been an integral part of interfacial physics problems. A thorough understanding of such interactions between a solid surface and different soft materials not only expands our theoretical knowledge, but also has applications in self-cleaning, omniphobic surfaces and phase-change heat transfer. Although there is a renewed interest in the design of robust functional surfaces which can passively remove highly viscous liquids or dew, or retard ice accretion or frost formation, the physics of several de
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Di, Novo Nicolò Giuseppe. "Water self-ejection, frosting, harvesting and viruses viability on surfaces: modelling and fabrication." Doctoral thesis, Università degli studi di Trento, 2022. https://hdl.handle.net/11572/355461.

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The wettability and phase change phenomena of water are ubiquitous on biological and artificial surfaces. Properties like water repellency, self-cleaning, coalescence induced condensation jumping, anti-frosting, and dew harvesting arise on surfaces with particular structures and chemistry and are of particular interest for energy and water saving. This thesis collects different studies of wettability and phase change on natural and artificial surfaces: growth and self-ejection of condensation droplets on micro and nanostructured surfaces we fabricated, their applications, the Sliding on Fr
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Conference papers on the topic "Condensation droplet jumping"

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Traipattanakul, B., C. Y. Tso, and Christopher Y. H. Chao. "Study of Electrostatic-Induced Jumping Droplets on Superhydrophobic Surfaces." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70311.

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Condensation of water vapor is an important process utilized in energy/thermal/fluid systems. When droplets coalesce on the non-wetting surface, excess surface energy converts to kinetic energy leading to self-propelled jumping of merged droplets. This coalescing-jumping-droplet condensation can better enhance heat transfer compared to classical dropwise condensation and filmwise condensation. However, the resistance force can cause droplets to return to the surface. These returning droplets can either coalesce with neighboring droplets and jump again, or adhere to the surface. As time passes,
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Miljkovic, Nenad, Daniel J. Preston, Ryan Enright, and Evelyn N. Wang. "Electric-Field-Enhanced Jumping-Droplet Condensation." In The 15th International Heat Transfer Conference. Begellhouse, 2014. http://dx.doi.org/10.1615/ihtc15.cds.008896.

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Xu, Zhenyuan, Lenan Zhang, Kyle L. Wilke, and Evelyn N. Wang. "MODELING OF JUMPING-DROPLET CONDENSATION WITH DYNAMIC DROPLET GROWTH." In International Heat Transfer Conference 16. Begellhouse, 2018. http://dx.doi.org/10.1615/ihtc16.hte.023384.

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Aili, Abulimiti, Hongxia Li, Mohamed H. Alhosani, and TieJun Zhang. "Characteristics of Jumping Droplet-Enhanced Condensation on Nanostructured Micromesh Surface." In ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/mnhmt2016-6382.

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Jumping-droplet enhanced condensation has recently attracted huge interest due to its remarkable potential of heat transfer performance enhancement, and studies have been done to design superhydrophobic surfaces with various surface morphologies. We fabricated a superhydrophobic micromesh-covered surface using a facile and scalable method. ESEM condensation experiment results show that droplets in pores formed by the mesh wires had faster growth rate in the upward direction than droplets on wires. This is mainly because of the confining role of the wires and higher heat transfer rate due to la
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Mukherjee, Ranit, Austin S. Berrier, Joshua R. Vieitez, Kevin R. Murphy, and Jonathan B. Boreyko. "EFFECTS OF SURFACE ORIENTATION ON JUMPING-DROPLET CONDENSATION." In International Heat Transfer Conference 16. Begellhouse, 2018. http://dx.doi.org/10.1615/ihtc16.cod.023745.

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Ho, Jin Yao, Kazi Fazle Rabbi, Soumyadip Sett, Teck Neng Wong, Kai Choong Leong, and Nenad Miljkovic. "Nanostructuring of Metallic Additively Manufactured Surfaces for Enhanced Jumping Droplet Condensation." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70949.

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Abstract Vapor condensation on metallic surfaces is a phase-change phenomenon that has widespread applications in many processes. Jumping-droplet-enhanced condensation is an effective mode of dropwise condensation due to its higher droplet removal rate, enabling more efficient heat transfer. However, maintaining stable jumping-droplet condensation, requires surface structures to be suitably designed to prevent droplet pinning and surface flooding. In recent years, using metal additive manufacturing (AM) processes to create heat exchanger surfaces has received significant attention due to its d
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Su, Junwei, Hamed Esmaeilzadeh, Chefu Su, Majid Charmchi, Marina Ruths, and Hongwei Sun. "Characterization of Jumping-Droplet Condensation on Nanostructured Surfaces With Quartz Crystal Microbalance." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72315.

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The spontaneously jumping motion of condensed droplets by coalescence on superhydrophobic surfaces has been an active area of research due to its great potential for enhancing the condensation efficiency. Despite a considerable amount of microscopic observations, the interfacial wetting characterization during jumping-droplet condensation is still notably lacking. This work focuses on applying a novel acoustic sensor - quartz crystal microbalance (QCM), to characterize the interfacial wetting on nanostructured surfaces during jumping-droplet condensation. Copper oxide nanostructures were gener
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Zhang, Tian-Yu, Lin-Wei Mou, Jia-Qi Li, and Li-Wu Fan. "Enhanced Steam Condensation Heat Transfer on a Honeycomb-Like Microporous Superhydrophobic Surface Under Different Condensing Pressures." In ASME 2020 Heat Transfer Summer Conference collocated with the ASME 2020 Fluids Engineering Division Summer Meeting and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ht2020-8938.

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Abstract Steam condensation heat transfer was studied over a honeycomb-like microporous superhydrophobic surface under various pressures, in order to elucidate the effects of pressure on the jumping-droplet condensation behaviors. The condensing pressure was varied from 4 kPa to 13 kPa, based on the typical operating conditions of condensers in power plants. Stable coalescence-induced droplet jumping was realized on the honeycomb-like superhydrophobic surface over this range of pressure, leading to a great enhancement on the condensation heat transfer as compared to that on the common hydropho
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Zhu, Y., C. Y. Tso, T. C. Ho, and Christopher Y. H. Chao. "Study of Coalescence-Induced Jumping Droplets on Biphilic Nanostructured Surfaces for Thermal Diodes in Thermal Energy Storage Systems." In ASME 2020 14th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/es2020-1703.

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Abstract Thermal energy can be better harvested and stored by integrating thermal diodes with thermal energy storage systems. Among different types of thermal diodes, jumping-droplet thermal diodes exploiting superhydrophilic and superhydrophobic surfaces yield greater thermal rectification performance (i.e. diodicity) due to high latent heat. However, the condensation heat transfer and coalescing-jumping droplets are restricted by the ability of water to nucleate on the superhydrophobic surface, leading to a limited maximum jumping height, finally resulting in degradation of diodicity of the
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Orejon, Daniel, Yota Maeda, Fengyong Lv, Peng Zhang, and Yasuyuki Takata. "Effect of Microstructures on Superhydrophobic and Slippery Lubricant-Infused Porous Surfaces During Condensation Phase-Change." In ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icnmm2018-7640.

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Superhydrophobic surfaces (SHSs) and slippery lubricant-infused porous surfaces (SLIPSs) are receiving increasing attention for their excellent anti-icing, anti-fogging, self-cleaning and condensation heat transfer properties. The ability of such surfaces to passively shed and repel water is mainly due to the low-adhesion between the liquid and the solid surface, i.e., low contact angle hysteresis, when compared to hydrophilic or to hydrophobic surfaces. In this work we investigated the effect of surface structure on the condensation performance on SHSs and SLIPSs. Three different SHSs with st
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