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Chemical Simulation Of Hydrogen Generation In A Plasma Fuel Reformer
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Book Synopsis Chemical Simulation of Hydrogen Generation in a Plasma Fuel Reformer by : Nuria Margarit Bel
Download or read book Chemical Simulation of Hydrogen Generation in a Plasma Fuel Reformer written by Nuria Margarit Bel and published by . This book was released on 2004 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Simulation results demonstrated that there is an optimum characteristic mixing time for each residence time, depending on the initial temperature reached at the arc. It was also found that the more spread the energy is, or the more mass is heated to a moderate temperature, the better the performance results.
Book Synopsis Simulation of Hydrogen Generation from Methane Partial Oxidation in a Plasma Fuel Reformer by : Nuria Margarit Bel
Download or read book Simulation of Hydrogen Generation from Methane Partial Oxidation in a Plasma Fuel Reformer written by Nuria Margarit Bel and published by . This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model for the chemistry in a plasma fuel reformer or plasmatron has been developed. The plasma fuel reformer is set up to produce syngas (hydrogen and carbon monoxide gas mixture) from partial oxidation of hydrocarbons. The behavior of methane as fuel has been investigated to characterize and simulate the plasmatron performance. The goal of this work has been improved understanding of the physical/chemical processes within the reactor. The simulation tool used was CHEMKIN 3.7, using the GRI methane combustion mechanism. The Partially Stirred Reactor application (PASR) simulates random mixing by a frequency mixing parameter, which is directly dependant of the system fluid dynamic properties. The fuel reformer was designed as a reactor where combustion is initiated by an electric discharge due to ohmic heating of the arc region. From discharge observations, energy estimations and model simulations, it was found that the electric arc initiates combustion by locally raising the temperature and then propagating the reaction by heat and mass transfer/mixing to the surroundings. Simulation results demonstrated that there is an optimum characteristic mixing time for each residence time, depending on the initial temperature reached at the arc. It was also found that for given power input into the system, the more spread the energy is, or the more mass is heated to a moderate temperature, the better the calculated performance.
Book Synopsis Hydrogen Generation from Ethanol using Plasma Reforming Technology by : JianHua Yan
Download or read book Hydrogen Generation from Ethanol using Plasma Reforming Technology written by JianHua Yan and published by Springer. This book was released on 2017-03-14 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of hydrogen production from renewable resources such as ethanol using plasma or plasma-catalytic technologies. Further, it presents a balanced and comprehensive treatment of the core principles, novel plasma reactors and diagnostics, as well as state-of-the-art plasma energy applications. It brings together technological advances and research on plasma generators and their application in hydrogen production, including plasma-assisted alcohol reforming technology, plasma-catalytic alcohol reforming technology, the alcohol reforming mechanism, models of alcohol reforming for hydrogen production, the energy balance of hydrogen production from ethanol, and a comparison of alcohol reforming assisted by different plasma treatment systems. As such, it offers a valuable reference guide for scientists, engineers and graduate students in the fields of energy and environment, plasma physics and chemistry.
Book Synopsis Hydrogen Production Technologies by : Mehmet Sankir
Download or read book Hydrogen Production Technologies written by Mehmet Sankir and published by John Wiley & Sons. This book was released on 2017-03-20 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive practical review of the new technologies used to obtain hydrogen more efficiently via catalytic, electrochemical, bio- and photohydrogen production. Hydrogen has been gaining more attention in both transportation and stationary power applications. Fuel cell-powered cars are on the roads and the automotive industry is demanding feasible and efficient technologies to produce hydrogen. The principles and methods described herein lead to reasonable mitigation of the great majority of problems associated with hydrogen production technologies. The chapters in this book are written by distinguished authors who have extensive experience in their fields, and readers will have a chance to compare the fundamental production techniques and learn about the pros and cons of these technologies. The book is organized into three parts. Part I shows the catalytic and electrochemical principles involved in hydrogen production technologies. Part II addresses hydrogen production from electrochemically active bacteria (EAB) by decomposing organic compound into hydrogen in microbial electrolysis cells (MECs). The final part of the book is concerned with photohydrogen generation. Recent developments in the area of semiconductor-based nanomaterials, specifically semiconductor oxides, nitrides and metal free semiconductor-based nanomaterials for photocatalytic hydrogen production are extensively discussed.
Book Synopsis Multiphysics Simulation and Optimal Design of a Pulsed Cold Plasma Reformer by : Minxiang Wu
Download or read book Multiphysics Simulation and Optimal Design of a Pulsed Cold Plasma Reformer written by Minxiang Wu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed cold plasma reforming is a novel method to harvest hydrogen from hydrocarbons. The harvested hydrogen can feed a fuel cell for distributed generation of electricity in a stationary or mobile platform. The cold plasma arc is generated by a pulsating high voltage waveform. The arc rotates in the magnetic field caused by a ring permanent magnet, thus increasing the collision area between the arc and the fuel. Due to the difficulties of measurement of plasma properties such as ion and electron temperature without disturbing the plasma, multiphysics simulation is a key step in the design of the reformer, thereby increasing the hydrogen harvest rate in the syngas. In this work, a 3D multiphysics simulation including fluid dynamics, thermal response, electromagnetic fields, and chemical reactions has been carried out to assist in the design of the reformer and the selection of the permanent magnet. The reformer parameters include input flow rate, electrode size and shape, the length of the air gap, and the frequency and the duty cycle of pulses. Experiments were carried out to verify the simulation results. The 3D multiphysics simulation is demonstrated to be an effective tool to assist in the design of the reformer. The electromagnetic interference caused by the pulsed cold plasma on probes and printed circuit boards is investigated. The hydrogen harvest rate has been improved from 58.7% to 67.8% with the introduction of the magnet.
Book Synopsis Hydrogen Production and Energy Transition by : Marcel Van de Voorde
Download or read book Hydrogen Production and Energy Transition written by Marcel Van de Voorde and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-09-07 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon neutral hydrogen technologies play a key role in preventing climate change. Maximizing production of hydrogen in a clean and efficient manner is critical to the hydrogen economy. This book describes most of the potential hydrogen processing technologies and presents the state-of the- art and future developments of modern hydrogen technologies. Attention has been given to the theoretical aspects, thermodynamics, process calculations, and modeling approaches, new technologies and reports of multiple successful new pilot systems. The book should appeal to a brad readership and ideal for students of materials science, chemistry, physics; for researchers, chemical- and mechanical engineering, for industrialists, policymakers, economics, safety agencies and governments.
Book Synopsis Plasma Catalysis by : Annemie Bogaerts
Download or read book Plasma Catalysis written by Annemie Bogaerts and published by MDPI. This book was released on 2019-04-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC remediation). Plasma catalysis allows thermodynamically difficult reactions to proceed at ambient pressure and temperature, due to activation of the gas molecules by energetic electrons created in the plasma. However, plasma is very reactive but not selective, and thus a catalyst is needed to improve the selectivity. In spite of the growing interest in plasma catalysis, the underlying mechanisms of the (possible) synergy between plasma and catalyst are not yet fully understood. Indeed, plasma catalysis is quite complicated, as the plasma will affect the catalyst and vice versa. Moreover, due to the reactive plasma environment, the most suitable catalysts will probably be different from thermal catalysts. More research is needed to better understand the plasma–catalyst interactions, in order to further improve the applications.
Book Synopsis Renewable Hydrogen Production by : Ibrahim Dincer
Download or read book Renewable Hydrogen Production written by Ibrahim Dincer and published by Elsevier. This book was released on 2021-11-27 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Renewable Hydrogen Production provides a comprehensive analysis of renewable energy-based hydrogen production. Through simulation analysis and experimental investigations, the book provides fundamentals, compares existing hydrogen production applications, discusses novel technologies, and offers insights into the future directions of this rapidly evolving industry. This all-in-one resource on how to produce clean hydrogen production to enhance energy efficiency and support sustainable development will appeal to a wide variety of industries and professionals. Addresses the production of clean hydrogen from the major sources of renewable energy, including wind, solar, geothermal, hydro, biomass and marine energy Presents information from simulations and experimental analyses Offers insights into the future of renewable hydrogen production
Book Synopsis Sustainable Hydrogen Production by : Ibrahim Dincer
Download or read book Sustainable Hydrogen Production written by Ibrahim Dincer and published by Elsevier. This book was released on 2016-08-05 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Hydrogen Production provides readers with an introduction to the processes and technologies used in major hydrogen production methods. This book serves as a unique source for information on advanced hydrogen generation systems and applications (including integrated systems, hybrid systems, and multigeneration systems with hydrogen production). Advanced and clean technologies are linked to environmental impact issues, and methods for sustainable development are thoroughly discussed. With Earth’s fast-growing populations, we face the challenge of rapidly rising energy needs. To balance these we must explore more sustainable methods of energy production. Hydrogen is one key sustainable method because of its versatility. It is a constituent of a large palette of essential materials, chemicals, and fuels. It is a source of power and a source of heat. Because of this versatility, the demand for hydrogen is sure to increase as we aim to explore more sustainable methods of energy. Furthermore, Sustainable Hydrogen Production provides methodologies, models, and analysis techniques to help achieve better use of resources, efficiency, cost-effectiveness, and sustainability. The book is intellectually rich and interesting as well as practical. The fundamental methods of hydrogen production are categorized based on type of energy source: electrical, thermal, photonic, and biochemical. Where appropriate, historical context is introduced. Thermodynamic concepts, illustrative examples, and case studies are used to solve concrete power engineering problems. Addresses the fundamentals of hydrogen production using electrical, thermal, photonic, and biochemical energies Presents new models, methods, and parameters for performance assessment Provides historical background where appropriate Outlines key connections between hydrogen production methods and environmental impact/sustainable development Provides illustrative examples, case studies, and study problems within each chapter
Book Synopsis Modeling of a Natural Gas Reformer for Distributed Hydrogen Production by : Claudia V. Diniz
Download or read book Modeling of a Natural Gas Reformer for Distributed Hydrogen Production written by Claudia V. Diniz and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis "Design and Development of a Folded-Sheet Reactor Concept for Hydrogen Production by Steam Reforming of Methanol by : Arístides Morillo
Download or read book "Design and Development of a Folded-Sheet Reactor Concept for Hydrogen Production by Steam Reforming of Methanol written by Arístides Morillo and published by Cuvillier Verlag. This book was released on 2008 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasmatron Fuel Reformer Development and Internal Combustion Engine Vehicle Applications by : Leslie Bromberg
Download or read book Plasmatron Fuel Reformer Development and Internal Combustion Engine Vehicle Applications written by Leslie Bromberg and published by . This book was released on 2005 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: (cont.) Both noncatalytic and catalytic (with a catalyst downstream from a homogeneous reforming zone) have been studied. Onboard conversion of biofuels into hydrogen rich gas opens up a range of opportunities for reducing petroleum consumption. The plasmatron response has been determined using real time gas analysis techniques. For cold start, the response of a plasmatron fuel reformer using homogeneous reforming was faster than that from a plasmatron fuel reformer that included a catalyst. In addition, hydrogen production during warm start has also been studied. This mode of operation could be particularly relevant to some aftertreatment applications, where the hydrogen rich gas needs to be produced in short, frequent pulses. Concepts have been developed for optimal regeneration of Diesel Particulate Filters, using hydrogen rich gas. The goal is the simplification of the aftertreatment system, increasing reliability, fuel penalty minimization, and minimization of fuel reformer system requirements.
Book Synopsis Plasma Assisted Reforming of Methane II by : Leslie Bromberg
Download or read book Plasma Assisted Reforming of Methane II written by Leslie Bromberg and published by . This book was released on 2005 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmatron fuel converters have been investigated for the conversion of a wide range of fuels. This paper is a series of papers describing an experimental and computational study of plasmatron methane reformers. This paper presents a model that uses limited mixing and chemical kinetics to investigate the plasma assisted reforming of natural gas. The Partially Stirred Reactor (PaSR) model from the software package CHEMKIN is used in the analysis. Comparison with plasmatron methane reforming experiments is made.
Book Synopsis Plasma Chemistry and Gas Conversion by : Nikolay Britun
Download or read book Plasma Chemistry and Gas Conversion written by Nikolay Britun and published by BoD – Books on Demand. This book was released on 2018-12-19 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-temperature non-equilibrium gaseous discharges represent nearly ideal media for boosting plasma-based chemical reactions. In these discharges the energy of plasma electrons, after being received from the electromagnetic field, is transferred to the other degrees of freedom differently, ideally with only a small part going to the translational motion of heavy gas particles. This unique property enables the important application of non-equilibrium plasmas for greenhouse gas conversion. While the degree of discharge non-equilibrium often defines the energetic efficiency of conversion, other factors are also of a great importance, such as type of discharge, presence of plasma catalysis, etc. This book is focused on the recent achievements in optimization and understanding of non-equilibrium plasma for gas conversion via plasma modeling and experimental work.
Book Synopsis Hydrogen and Syngas Production and Purification Technologies by : Ke Liu
Download or read book Hydrogen and Syngas Production and Purification Technologies written by Ke Liu and published by John Wiley & Sons. This book was released on 2010-01-07 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the timely topic of fuel cells and hydrogen-based energy from its fundamentals to practical applications Serves as a resource for practicing researchers and as a text in graduate-level programs Tackles crucial aspects in light of the new directions in the energy industry, in particular how to integrate fuel processing into contemporary systems like nuclear and gas power plants Includes homework-style problems
Book Synopsis Modeling and Simulation of a Novel Reformer for Continuous Hydrogen Production from Logistic Fuels by : Dhaval Patel
Download or read book Modeling and Simulation of a Novel Reformer for Continuous Hydrogen Production from Logistic Fuels written by Dhaval Patel and published by . This book was released on 2008 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Hydrogen Energy by : Raj Kumar Arya
Download or read book Sustainable Hydrogen Energy written by Raj Kumar Arya and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-05-20 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen energy is the most versatile energy source: its advantages include the minimization of pollution and land use compared to traditional fossil fuels, high energy density, and the possibility of generation using renewable sources (such as water splitting). This book focuses on the main advances and challenges in the production, storage, transportation and commercialization of hydrogen energy.
