Transport Interactions Between Gas And Water In Thin Hydrophobic Porous Layers

Download Transport Interactions Between Gas And Water In Thin Hydrophobic Porous Layers full books in PDF, epub, and Kindle. Read online Transport Interactions Between Gas And Water In Thin Hydrophobic Porous Layers ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Transport interactions between gas and water in thin hydrophobic porous layers

Author : Stefan Dwenger
Publisher : Logos Verlag Berlin GmbH
ISBN 13 : 3832541977
Total Pages : 188 pages
Book Rating : 4.8/5 (325 download)

DOWNLOAD NOW!

Book Synopsis Transport interactions between gas and water in thin hydrophobic porous layers by : Stefan Dwenger

Download or read book Transport interactions between gas and water in thin hydrophobic porous layers written by Stefan Dwenger and published by Logos Verlag Berlin GmbH. This book was released on 2016-01-29 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decades it has become clear that the transport of gas and water inside the mixed-wettable gas diffusion medium (GDL) plays a significant role for the improved understanding and optimization of the polymer electrolyte membrane fuel cells (PEMFC). In the present thesis the influence of liquid water and gas on the transport properties of gas diffusion media of polymer electrolyte membrane fuel cells (PEMFC) is examined numerically and experimentally. The different arising transport mechanisms and their influence as well as their representation in theoretical models (especially REV-based Darcy models) are presented. Moreover, an approach for modelling and simulation of the water distribution inside mixed-wettable porous media, especially gas diffusion layers, is discussed. To this end, a thermodynamical-based approach is chosen - the interactions between gaseous, liquid, and solid (carbon and PTFE) phases are treated with the help of a stationary scheme based on the interfacial energies which have to be minimized. For the optimization task itself the (parallel) simulated annealing approach is chosen and discussed. In addition algorithms for the generation and discretization of the virtual porous structures are described. Based on the results the modelling of constitutive relationships and transport parameters depending on water and PTFE content is performed. Besides that experiments for the measurement of those relationships are developed. A special focus is on the precise compression of the GDL sample and the influence on capillary pressure-saturation relationship, relative permeabilities, and effective diffusivities. Different apparatus for in- and through-plane measurements are developed. At the end the derived transport parameters and relationships are applied to a REV-based Darcy model which is compared with an integral experiment. The experimental setup is motivated by the counter-current flow regime of liquid water and gas at the cathode side of the PEMFC. It has been demonstrated that Darcy-flow based models for porous media are also applicable to thin technical porous layers.

Proton Exchange Membrane Fuel Cells 8

Author : T. Fuller
Publisher : The Electrochemical Society
ISBN 13 : 1566776481
Total Pages : 2220 pages
Book Rating : 4.5/5 (667 download)

DOWNLOAD NOW!

Book Synopsis Proton Exchange Membrane Fuel Cells 8 by : T. Fuller

Download or read book Proton Exchange Membrane Fuel Cells 8 written by T. Fuller and published by The Electrochemical Society. This book was released on 2008-10 with total page 2220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This international symposium is devoted to all aspects of research, development, and engineering of proton exchange membrane (PEM) fuel cells and stacks, as well as low-temperature direct-fuel cells. The intention is to bring together the international community working on the subject and to enable effective interactions between research and engineering communities.

Managing Air Quality and Energy Systems

Author : Brian D. Fath
Publisher : CRC Press
ISBN 13 : 1000065626
Total Pages : 843 pages
Book Rating : 4.0/5 ( download)

DOWNLOAD NOW!

Book Synopsis Managing Air Quality and Energy Systems by : Brian D. Fath

Download or read book Managing Air Quality and Energy Systems written by Brian D. Fath and published by CRC Press. This book was released on 2020-07-29 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the basic knowledge and key processes of the atmosphere and its systems. Addresses new and cutting-edge topics on ecosystem services, resilience, sustainability, food-energy-water nexus, socio-ecological systems, and more. Provides an excellent basic knowledge on environmental systems, explains how these systems function and offers strategies on how to best manage them. Includes the most important problems and solutions facing environmental management today. Written by leading environmental experts from around the world.

PEM Fuel Cell Durability Handbook, Two-Volume Set

Author : Haijiang Wang
Publisher : CRC Press
ISBN 13 : 1439863164
Total Pages : 952 pages
Book Rating : 4.4/5 (398 download)

DOWNLOAD NOW!

Book Synopsis PEM Fuel Cell Durability Handbook, Two-Volume Set by : Haijiang Wang

Download or read book PEM Fuel Cell Durability Handbook, Two-Volume Set written by Haijiang Wang and published by CRC Press. This book was released on 2019-08-21 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: While PEM fuel cells are highly efficient, environmentally friendly sources of power, their durability hinders the commercialization of this technology. With contributions from international scientists active in PEM fuel cell research, PEM Fuel Cell Durability Handbook, Two-Volume Set provides a comprehensive source of state-of-the-art research in

PEM Fuel Cell Diagnostic Tools

Author : Haijiang Wang
Publisher : CRC Press
ISBN 13 : 1439839190
Total Pages : 580 pages
Book Rating : 4.4/5 (398 download)

DOWNLOAD NOW!

Book Synopsis PEM Fuel Cell Diagnostic Tools by : Haijiang Wang

Download or read book PEM Fuel Cell Diagnostic Tools written by Haijiang Wang and published by CRC Press. This book was released on 2011-08-25 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: PEM Fuel Cell Diagnostic Tools presents various tools for diagnosing PEM fuel cells and stacks, including in situ and ex situ diagnostic tools, electrochemical techniques, and physical/chemical methods. The text outlines the principles, experimental implementation, data processing, and application of each technique, along with its capabilities and weaknesses. The book covers many diagnostics employed in the characterization and determination of fuel cell performance. It discusses commonly used conventional tools, such as cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, and transmission electron microscopy. It also examines special tools developed specifically for PEM fuel cells, including transparent cells, cathode discharge, and current mapping, as well as recent advanced tools for diagnosis, such as magnetic resonance imaging and atomic force microscopy. For clarity, the book splits these diagnostic methodologies into two parts—in situ and ex situ. To better understand the tools, PEM fuel cell testing is also discussed. Each self-contained chapter provides cross-references to other chapters. Written by international scientists active in PEM fuel cell research, this volume incorporates state-of-the-art technical advances in PEM fuel cell diagnosis. The diagnostic tools presented help readers to understand the physical and chemical phenomena involved in PEM fuel cells.

Air Pollution Prevention and Control

Author : Christian Kennes
Publisher : John Wiley & Sons
ISBN 13 : 1119943310
Total Pages : 581 pages
Book Rating : 4.1/5 (199 download)

DOWNLOAD NOW!

Book Synopsis Air Pollution Prevention and Control by : Christian Kennes

Download or read book Air Pollution Prevention and Control written by Christian Kennes and published by John Wiley & Sons. This book was released on 2013-05-13 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades, the use of microbes to remove pollutants from contaminated air streams has become a widely accepted and efficient alternative to the classical physical and chemical treatment technologies. This book focuses on biotechnological alternatives, looking at both the optimization of bioreactors and the development of cleaner biofuels. It is the first reference work to give a broad overview of bioprocesses for the mitigation of air pollution. Essential reading for researchers and students in environmental engineering, biotechnology, and applied microbiology, and industrial and governmental researchers.

Encyclopedia of Electrochemical Power Sources

Author : Jürgen Garche
Publisher : Newnes
ISBN 13 : 0444527451
Total Pages : 4532 pages
Book Rating : 4.4/5 (445 download)

DOWNLOAD NOW!

Book Synopsis Encyclopedia of Electrochemical Power Sources by : Jürgen Garche

Download or read book Encyclopedia of Electrochemical Power Sources written by Jürgen Garche and published by Newnes. This book was released on 2013-05-20 with total page 4532 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Electrochemical Power Sources is a truly interdisciplinary reference for those working with batteries, fuel cells, electrolyzers, supercapacitors, and photo-electrochemical cells. With a focus on the environmental and economic impact of electrochemical power sources, this five-volume work consolidates coverage of the field and serves as an entry point to the literature for professionals and students alike. Covers the main types of power sources, including their operating principles, systems, materials, and applications Serves as a primary source of information for electrochemists, materials scientists, energy technologists, and engineers Incorporates nearly 350 articles, with timely coverage of such topics as environmental and sustainability considerations

Membrane Distillation

Author : Mohamed Khayet Souhaimi
Publisher : Elsevier
ISBN 13 : 0080932223
Total Pages : 493 pages
Book Rating : 4.0/5 (89 download)

DOWNLOAD NOW!

Book Synopsis Membrane Distillation by : Mohamed Khayet Souhaimi

Download or read book Membrane Distillation written by Mohamed Khayet Souhaimi and published by Elsevier. This book was released on 2011-08-12 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern membrane engineering is critical to the development of process-intensification strategies and to the stimulation of industrial growth. Membrane Distillation (MD) is a broad reference that covers specific information on membranes available and methods for MD membrane preparation and characterization. The book offers an introduction to the terminology and fundamental concepts as well as a historical review of MD development. Commercial membranes used in MD as well as laboratory-made membranes, including emerging membranes, are described in detail and illustrated by a number of clear and instructive schematic drawings and images. A comprehensive review on the development of MD membranes, MD modules, MD membrane characterization, MD configurations, applications in different areas and theoretical models Introduction to the terminology and fundamental concepts associated with MD as well as an historical review of MD development Description of commercial membranes used in MD as well as laboratory-made membranes, including emerging membranes

PEM Fuel Cells

Author : Jasna Jankovic
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110623609
Total Pages : 555 pages
Book Rating : 4.1/5 (16 download)

DOWNLOAD NOW!

Book Synopsis PEM Fuel Cells by : Jasna Jankovic

Download or read book PEM Fuel Cells written by Jasna Jankovic and published by Walter de Gruyter GmbH & Co KG. This book was released on 2023-05-22 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive introduction to the rapidly developing field of modeling and characterization of PEM fuel cells. It focuses on i) fuel cell performance modeling and performance characterization applicable from single cells to stacks, ii) fundamental and advanced techniques for structural and compositional characterization of fuel cell components and iii) electrocatalyst design. Written by experts in this field, this book is an invaluable tool for graduate students and professionals.

Synthesis and Characterizations of Poly(organophosphazenes)

Author : Roger De Jaeger
Publisher : Nova Publishers
ISBN 13 : 9781594540240
Total Pages : 390 pages
Book Rating : 4.5/5 (42 download)

DOWNLOAD NOW!

Book Synopsis Synthesis and Characterizations of Poly(organophosphazenes) by : Roger De Jaeger

Download or read book Synthesis and Characterizations of Poly(organophosphazenes) written by Roger De Jaeger and published by Nova Publishers. This book was released on 2004 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gleria (materials science, Padova University, Italy) and De Jaeger (chemistry, University of Sciences and Technologies, France) present the latest work in the synthesis and characterization of poly(organophosphazenes). The book opens with a general introduction on background, developments, and future perspectives, then covers the synthetic aspects of phosphazene polymers, with chapters on areas such as ambient temperature cationic condensation synthesis of polyphosphazenes and high molecular weight polyspirophosphazenes. Chapters on the characterization of phosphazene polymers in solution explore topics including thermal and mechanical properties of polyphosphazenes and electrochemical behavior of phosphazenes. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).

Phosphazenes

Author : Mario Gleria
Publisher : Nova Publishers
ISBN 13 : 9781590334232
Total Pages : 1066 pages
Book Rating : 4.3/5 (342 download)

DOWNLOAD NOW!

Book Synopsis Phosphazenes by : Mario Gleria

Download or read book Phosphazenes written by Mario Gleria and published by Nova Publishers. This book was released on 2004 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this book is to provide a complete picture of current research on phosphazene compounds carried out around the world. The book opens with a general introduction, then moves on to cover synthetic aspects of phosphazene polymers, their characterization in solution and from the theoretical, thermal, and mechanical points of view; application aspects of poly(organophosphazenes); and the synthesis, characterization, and practical utilization of cyclophosphazenes. There is particular focus on the use of cyclophosphazenes as hydraulic fluids and additives, as cores for star polymers or dendrimers, and as starting substrates for supramolecular chemistry and nanostructured materials. The spectroscopic characterization of these compounds by NMR and Raman techniques is also discussed. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).

Carbon-based Polymer Nanocomposites for Environmental and Energy Applications

Author : Ahmad Fauzi Ismail
Publisher : Elsevier
ISBN 13 : 0128135751
Total Pages : 632 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!

Book Synopsis Carbon-based Polymer Nanocomposites for Environmental and Energy Applications by : Ahmad Fauzi Ismail

Download or read book Carbon-based Polymer Nanocomposites for Environmental and Energy Applications written by Ahmad Fauzi Ismail and published by Elsevier. This book was released on 2018-03-28 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon-Based Polymer Nanocomposites for Environmental and Energy Applications provides the fundamental physico-chemical characterizations of recently explored carbon-based polymer nanocomposites, such as carbon nanotubes, graphene and its derivatives, nanodiamond, fullerenes and other nano-sized carbon allotropes. The book also covers the applications of carbon-based polymer nanocomposite in the environmental and energy fields. Topics range from the various approaches that have been explored and developed for the fabrication of carbon-based polymer nanocomposite, to their applications in tackling environmental and energy related issues. Provides a clear picture of the current state-of-the-art and future trends in carbon-based polymer nanomaterials Explains the interactions between nanofiller-polymer matrices and mechanisms related to applications in environmental pollution and energy shortage Includes computational and experimental studies of the physical and chemical properties of carbon-based polymer nanocomposites Features chapters written by world leading experts

Encyclopedia of Surface and Colloid Science

Author : P. Somasundaran
Publisher : CRC Press
ISBN 13 : 9780849396045
Total Pages : 1148 pages
Book Rating : 4.3/5 (96 download)

DOWNLOAD NOW!

Book Synopsis Encyclopedia of Surface and Colloid Science by : P. Somasundaran

Download or read book Encyclopedia of Surface and Colloid Science written by P. Somasundaran and published by CRC Press. This book was released on 2006 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Polyurethanes in Biomedical Applications

Author : NinaM.K. Lamba
Publisher : Routledge
ISBN 13 : 135142338X
Total Pages : 288 pages
Book Rating : 4.3/5 (514 download)

DOWNLOAD NOW!

Book Synopsis Polyurethanes in Biomedical Applications by : NinaM.K. Lamba

Download or read book Polyurethanes in Biomedical Applications written by NinaM.K. Lamba and published by Routledge. This book was released on 2017-10-19 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyurethanes in Biomedical Applications studies the use of polyurethanes in implanted medical devices. This analysis describes the concepts of polymer science, the manufacture of polyurethanes, and the biological responses to implant polyurethanes, reflecting the developments in biomaterials science and the interdisciplinary nature of bioengineering.

Advanced Functional Membranes

Author : Inamuddin
Publisher : Materials Research Forum LLC
ISBN 13 : 1644901803
Total Pages : 344 pages
Book Rating : 4.6/5 (449 download)

DOWNLOAD NOW!

Book Synopsis Advanced Functional Membranes by : Inamuddin

Download or read book Advanced Functional Membranes written by Inamuddin and published by Materials Research Forum LLC. This book was released on 2022-03-15 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional membranes are used in food processing, sensor technology, medical and biomedical devices, desalination, waste water treatment, CO2 capture, energy production and energy storage, optoelectronics etc. The book reviews recent advances in the field and discusses challenges and perspectives. Keywords: Membrane Fabrication, Polymer Membranes, Self-Assembled Membranes, Molecular Probes, Membrane Fouling, Membrane Cleaning, Microfiltration, Ultrafiltration, Food Processing, Sensors, Medical Devices, Biomedical Applications, Desalination, Wastewater Treatment, Ion Exchange Processes, Polymeric Ceramic Membranes, Nano Holes, Fuel Cells, Lithium-Ion Batteries, Optoelectronics.

Portable Hydrogen Energy Systems

Author : Paloma Ferreira-Aparicio
Publisher : Academic Press
ISBN 13 : 0128131292
Total Pages : 237 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!

Book Synopsis Portable Hydrogen Energy Systems by : Paloma Ferreira-Aparicio

Download or read book Portable Hydrogen Energy Systems written by Paloma Ferreira-Aparicio and published by Academic Press. This book was released on 2018-08-04 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portable Hydrogen Energy Systems: Fuel Cells and Storage Fundamentals and Applications covers the basics of portable fuel cells, their types, possibilities for fuel storage, in particular for hydrogen as fuel, and their potential application. The book explores electrochemistry, types, and materials and components, but also includes a chapter on the particularities of their use in portable devices, with a focus on proton exchange membrane (PEM) type. Topics cover fuel storage for these cells, in particular hydrogen storage and an analysis of current possibilities. In addition, portable fuel cell systems are examined, covering auxiliary elements required for operation and possibilities for their miniaturization. Engineers and developers of portable applications and electricity will find this book to provide fundamental information on the possibilities of portable hydrogen fuel cells, including costs and market information, for their planning, modeling, development and deployment. Graduate students and lecturers will find this to be a complementary resource in general hydrogen and fuel cell courses or in specialized courses covering portable systems. Presents a current view of the fundamentals and possibilities of portable hydrogen fuel cells, also comparing them with other market solutions, such as batteries Examines the applications where portable hydrogen fuel cell technology is a viable solution Explores future trends and needs in terms of materials, components and systems to improve the possibilities to make hydrogen fuel cells competitive and reliable for future portable applications

Chemical Sensors and Biosensors

Author : Florinel-Gabriel Banica
Publisher : John Wiley & Sons
ISBN 13 : 1118354230
Total Pages : 795 pages
Book Rating : 4.1/5 (183 download)

DOWNLOAD NOW!

Book Synopsis Chemical Sensors and Biosensors by : Florinel-Gabriel Banica

Download or read book Chemical Sensors and Biosensors written by Florinel-Gabriel Banica and published by John Wiley & Sons. This book was released on 2012-08-15 with total page 795 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key features include: Self-assessment questions and exercises Chapters start with essential principles, then go on to address more advanced topics More than 1300 references to direct the reader to key literature and further reading Highly illustrated with 450 figures, including chemical structures and reactions, functioning principles, constructive details and response characteristics Chemical sensors are self-contained analytical devices that provide real-time information on chemical composition. A chemical sensor integrates two distinct functions: recognition and transduction. Such devices are widely used for a variety of applications, including clinical analysis, environment monitoring and monitoring of industrial processes. This text provides an up-to-date survey of chemical sensor science and technology, with a good balance between classical aspects and contemporary trends. Topics covered include: Structure and properties of recognition materials and reagents, including synthetic, biological and biomimetic materials, microorganisms and whole-cells Physicochemical basis of various transduction methods (electrical, thermal, electrochemical, optical, mechanical and acoustic wave-based) Auxiliary materials used e.g. synthetic and natural polymers, inorganic materials, semiconductors, carbon and metallic materials properties and applications of advanced materials (particularly nanomaterials) in the production of chemical sensors and biosensors Advanced manufacturing methods Sensors obtained by combining particular transduction and recognition methods Mathematical modeling of chemical sensor processes Suitable as a textbook for graduate and final year undergraduate students, and also for researchers in chemistry, biology, physics, physiology, pharmacology and electronic engineering, this bookis valuable to anyone interested in the field of chemical sensors and biosensors.