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Author: Bekir Sami Yilbas Publisher: Elsevier ISBN: 0128147776 Category : Technology & Engineering Languages : en Pages : 454
Book Description
Self-Cleaning of Surfaces and Water Droplet Mobility deals with the self-cleaning of hydrophobic surfaces. Chapters cover the basics of wetting states of fluids and surface characteristics in terms of texture topology and free energy. The self-cleaning aspects of surfaces, such as various synthesizing and fabrication processes are then introduced and discussed, along with environmental dust properties, including elemental compositions, particle sizes and shapes, and their chemo-mechanics characteristics. In addition, mud formation in humid air, as well as ambient and dry mud adhesion on optically transparent surfaces is explored, as is water droplet dynamics on hydrophilic and hydrophobic surfaces, amongst other topics. The book fills the gap between the physical fundamentals of surface energy and texture characteristics for practical applications of surface cleaning and provides a basic understanding of the self-cleaning of surfaces that will be idea for academics, researchers and students. Showcases the fundamental aspects of the self-cleaning of surfaces Includes practical applications in energy and other sectors Contains a review of the characterization of environmental dust on hydrophilic and hydrophobic surfaces Discusses the fabrication and optimization of surfaces towards self-cleaning Presents practical applications of the self-cleaning of surfaces via water droplet mobility
Author: Bekir Sami Yilbas Publisher: Elsevier ISBN: 0128147776 Category : Technology & Engineering Languages : en Pages : 454
Book Description
Self-Cleaning of Surfaces and Water Droplet Mobility deals with the self-cleaning of hydrophobic surfaces. Chapters cover the basics of wetting states of fluids and surface characteristics in terms of texture topology and free energy. The self-cleaning aspects of surfaces, such as various synthesizing and fabrication processes are then introduced and discussed, along with environmental dust properties, including elemental compositions, particle sizes and shapes, and their chemo-mechanics characteristics. In addition, mud formation in humid air, as well as ambient and dry mud adhesion on optically transparent surfaces is explored, as is water droplet dynamics on hydrophilic and hydrophobic surfaces, amongst other topics. The book fills the gap between the physical fundamentals of surface energy and texture characteristics for practical applications of surface cleaning and provides a basic understanding of the self-cleaning of surfaces that will be idea for academics, researchers and students. Showcases the fundamental aspects of the self-cleaning of surfaces Includes practical applications in energy and other sectors Contains a review of the characterization of environmental dust on hydrophilic and hydrophobic surfaces Discusses the fabrication and optimization of surfaces towards self-cleaning Presents practical applications of the self-cleaning of surfaces via water droplet mobility
Author: David Leland Miller Publisher: ISBN: Category : Languages : en Pages : 110
Book Description
Superhydrophobic (SH) surfaces are super water repellent surfaces on which a droplet of water will bead up like a marble and roll off the surface with minimal tilting of the surface. This is caused by the combination of a hydrophobic coating and a rough surface structure. To achieve thermodynamic stability, surface tension of the water pulls the droplet into this shape to minimize the contact area between the droplet and the surface. This creates a high contact angle (CA) between the droplet and the surface and a low sliding angle (SA) of which the droplet begins to roll off the surface. SH surfaces have a variety of potential applications such as drag reduction, anti-icing, improved heat transfer through condensation, and self-cleaning. Numerous reports have been dedicated to exploring the fluid dynamic behavior of water droplets on SH surfaces. This thesis focuses on exploring the self-cleaning properties of SH surfaces. Surfaces contaminated with salt, tobacco, and pollen are cleaned by rolling water droplets over the surface or condensing water on the surface such that when large enough, these droplets roll away due to gravity. SH surfaces explored here are composed of micro-scale or nano-scale rib and cavity structures and and are compared with smooth, hydrophobic surfaces with a similar hydrophobic coating.
Author: Walid A. Daoud Publisher: John Wiley & Sons ISBN: 1118652363 Category : Technology & Engineering Languages : en Pages : 513
Book Description
With increasing demand for hygienic, self-disinfecting and contamination free surfaces, interest in developing self-cleaning protective materials and surfaces has grown rapidly in recent times. This new title comprises of invited chapters from renowned researchers in the area of self-cleaning nano-coatings and the result is a comprehensive review of current research on both hydrophobic and hydrophilic (photocatalytic effect) self-cleaning materials.
Author: Tabea Heckenthaler Publisher: ISBN: Category : Languages : en Pages :
Book Description
Dust particles can adhere to surfaces, and thereby, can decrease the efficiency of diverse processes, such as light absorption by solar panels. To efficiently (in terms of energy and time) clean surfaces, it has been proposed to employ the bio-inspired "self-cleaning" mechanism, in which water droplets slide/roll along the surface, and thereby detach (clean) particles from the surfaces. It was shown that superhydrophobicity is beneficial for the self-cleaning mechanism: superhydrophobicity reduces the friction between water droplets and the surfaces, thus, allowing water droplets to slide on the surface. However, the forces that attach and detach particles from surfaces during the self-cleaning mechanism, and on the effect of nanotextures on these forces, are not fully understood. To shed light on these forces, and the effect of nanotexture on them, I prepared four Si-based samples (relevant to solar panels): (1) smooth or (2) nanotextured hydrophilic surfaces, and (3) smooth or (4) nano texturedhydrophobic surfaces. In agreement with previous publications, it is shown that the efficiency of particle removal increases with hydrophobicity. Furthermore, nanotexture enhances the hydrophobicity, and increases particle removal. Specifically, hydrophilic particle removal increased from ~41%, from hydrophilic smooth Si wafer, to ~98% from superhydrophobic Si-based nanotextured surfaces. However, my results and analysis show that the reason for the increased particle removal is not small friction between the droplets and the superhydrophobic surfaces; it is the reduction of the adhesion force between the particle and the surface, and the altered geometry of the water-particle-air line tension acting on the particles on superhydrophobic surfaces, which increases the force that can detach particles from the surfaces. The experimental methods and the derived criterion for particle removal can be implemented to engineer self-cleaning surfaces using other surfaces and dust particles, exhibiting different chemistries and/or textures.
Author: Masoud Farzaneh Publisher: Springer Nature ISBN: 3030874559 Category : Technology & Engineering Languages : en Pages : 400
Book Description
This book offers a comprehensive review of the various options for improving the performance of overhead power lines in winter conditions, taking into account both mechanical and electrical aspects. Experience within the CIGRE community reveals many strategies to protect overhead power lines from damage caused by heavy build-up of ice and snow or electrical issues such as insulator icing flashovers. The initial approach is to consider the predicted ice loads from the available databases. This is supplemented with some fundamental aspects of icing physics that affect accretion rate as well as factors in ice shedding on traditional (metal, ceramic) and novel treated surfaces. These ice physics concepts structure the ways to categorize and evaluate methods to reduce or prevent icing on conductors and ground wires or to prevent flashover of insulators. Many utilities in cold climate regions have developed and used methods and strategies to reduce ice loads using anti-icing (AI) and / or de-icing (DI) methods. In general, AI methods are used before or early during ice build-up, while DI methods are activated during and sometimes after ice build-up. The book describes and discusses some historical, operational, or potential AI / DI systems in the ice physics context. This supports a comprehensive review of AI coatings including concepts, relevant material properties, application methods, and finally test methods for characterizing the long-term performance.
Author: Sanjay Mavinkere Rangappa Publisher: CRC Press ISBN: 0429583303 Category : Technology & Engineering Languages : en Pages : 381
Book Description
Polymer Coatings: Technologies and Applications provides a comprehensive account of the recent developments in polymer coatings encompassing novel methods, techniques, and a broad spectrum of applications. The chapters explore the key aspects of polymer coatings while highlighting fundamental research, different types of polymer coatings, and technology advances. This book also integrates the various aspects of these materials from synthesis to application. Current status, trends, future directions, and opportunities are also discussed. FEATURES Examines the basics to the most recent advances in all areas of polymer coatings Serves as a one-stop reference Discusses polymer-coated nanocrystals and coatings based on nanocomposites Describes morphology, spectroscopic analysis, adhesion, and rheology of polymer coatings Explores conducting, stimuli-responsive, self-healing, hydrophobic and hydrophilic, antifouling, and antibacterial polymer coatings Covers modeling and simulation With contributions from the top international researchers from industry, academia, government, and private research institutions, both new and experienced readers will benefit from this applications-oriented book. Sanjay Mavinkere Rangappa is a research scientist at the Natural Composites Research Group Lab, Academic Enhancement Department, King Mongkut’s University of Technology North Bangkok, Thailand. Jyotishkumar Parameswaranpillai is a research professor at the Center of Innovation in Design and Engineering for Manufacturing, King Mongkut’s University of Technology North Bangkok, Thailand. Suchart Siengchin is a professor at and president of King Mongkut’s University of Technology North Bangkok, Thailand.
Author: A Sandeep Kranthi Kiran Publisher: World Scientific ISBN: 9811228191 Category : Technology & Engineering Languages : en Pages : 413
Book Description
This book presents a broad scope of the field of biomaterials science and technology, focusing on theory, advances and applications. It is written for those who would like to develop their interest and knowledge towards biomaterials or materials science and engineering. All aspects of biomaterials science are thoroughly addressed, from basic principles of biomaterials, organs and medical devices to advanced topics such as tissue engineering, surface engineering, sterilization techniques, 3D printing and drug delivery systems. Readers are also introduced to major concepts of surface modification techniques, and potential applications of different classes of biomaterials. Multiple-choice questions at the end of every chapter will be helpful for students to test their understanding of each topic, with answers provided at the end of the book.Ultimately, this book offers a one-stop source of information on the essentials of biomaterials and engineering. It is useful both as an introduction and advanced reference on recent advances in the biomaterials field. Suitable readers include undergraduate and graduate students, especially those in Materials Science, Biomedical Engineering and Bioengineering.
Author: Ibrahim Dincer Publisher: Elsevier ISBN: 0128149256 Category : Science Languages : en Pages : 5543
Book Description
Comprehensive Energy Systems, Seven Volume Set provides a unified source of information covering the entire spectrum of energy, one of the most significant issues humanity has to face. This comprehensive book describes traditional and novel energy systems, from single generation to multi-generation, also covering theory and applications. In addition, it also presents high-level coverage on energy policies, strategies, environmental impacts and sustainable development. No other published work covers such breadth of topics in similar depth. High-level sections include Energy Fundamentals, Energy Materials, Energy Production, Energy Conversion, and Energy Management. Offers the most comprehensive resource available on the topic of energy systems Presents an authoritative resource authored and edited by leading experts in the field Consolidates information currently scattered in publications from different research fields (engineering as well as physics, chemistry, environmental sciences and economics), thus ensuring a common standard and language
Author: Akarsh Verma Publisher: Springer Nature ISBN: 9819935490 Category : Technology & Engineering Languages : en Pages : 419
Book Description
This book comprehensively reviews assorted types of coatings, their applications, and various strategies employed by several scientists and researchers to fabricate them. Exclusively, the recent progress in computational strategies that are helpful to optimize the best suitable coating formulation before one goes for the real-time fabrication has been discussed in detail. And this book is also intended to shed light on the computational modeling techniques that are used in the characterization of various coating materials. It covers mechanisms, salient features, formulations, important aspects, and case studies of coatings utilized for various applications. The latest research in this area as well as possible avenues of future research is also highlighted to encourage the researchers.
Author: Bekir Sami Yilbas
Author: Bekir Sami Yilbas
Author: David Leland Miller
Author: Walid A. Daoud
Author: Tabea Heckenthaler
Author: Masoud Farzaneh
Author: Sanjay Mavinkere Rangappa
Author: A Sandeep Kranthi Kiran
Author: Ibrahim Dincer
Author: Nirav J. Joshi
Author: Akarsh Verma