Research on the Combustion and Explosion Hazards of Hydrogen-water Vapor-air Mixtures PDF Download

Author: Michael G. Zabetakis
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 16

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Author: Michael George Zabetakis
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 16

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Author: Michael George Zabetakis
Publisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 62

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Book Description

Author: Boris E. Gelfand
Publisher: Springer Science & Business Media
ISBN: 3642253520
Category : Science
Languages : en
Pages : 338

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Book Description
The potential of hydrogen as an important future energy source has generated fresh interest in the study of hydrogenous gas mixtures. Indeed, both its high caloricity and reactivity are unique properties, the latter underscoring safety considerations when handling such mixtures. The present monograph is devoted to the various aspects of hydrogen combustion and explosion processes. In addition to theoretical and phenomenological considerations, this work also collates the results of many experiments from less well known sources. The text reviews the literature in this respect, thereby providing valuable information about the thermo-gas-dynamical parameters of combustion processes for selected experimental settings in a range of scientific and industrial applications.

Author: Isadore L. Drell
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 92

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Book Description
This literature survey digest of hydrogen-air combustion fundamentals presents data on flame temperature, burning velocity, quenching distance, flammability limits, ignition energy, flame stability, detonation, spontaneous ignition, and explosion limits. The data are assessed, recommended values are given, and relations among various combustion properties are discussed. New material presented includes: theoretical treatment of variation in spontaneous ignition lag with temperature, pressure, and composition, based on reaction kinetics of hydrogen-air composition range for 0.01 to 100 atmospheres and initial temperatures of 0 degrees to 1400 degrees k.

Author: George William Jones
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 26

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16

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Author: Roberto Caruso
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The Fukushima accident in 2011 highlighted the serious consequences that an explosion of a hydrogen-based gas mixture has on installations and the environment. In this accident, the complete destruction of Reactor 2 resulted in a significant release of radioactive dust into the atmosphere with serious environmental consequences that are still under investigation. A thorough knowledge of the propagation of a hydrogen flame in a confined environment is essential to understand the transition conditions between deflagration and flame detonation regimes that can compromise the integrity of the reactor building. One aspect of the aspects that has been little studied concerns the impact that the activation of cooling water jets can have on the severity of an explosion. The purpose of this thesis work is to better understand the role of water spray injection on the combustion regimes of hydrogen-air mixtures (propagation rates and pressure loading) in a confined space. This research work began with a preliminary study to evaluate the impact of the presence of water vapour on laminar velocity and flame thickness. Subsequently, an experimental study was carried out at the ICARE-CNRS Orléans laboratory in an ENACCEF 1 vertical acceleration tube (internal volume 720 l). To conduct this study, different hydrogen/air mixtures were selected, representative of different combustion regimes, to investigate the impact of water spray on an ascending and descending flame. All the work constitutes a useful experimental database for the validation of CFD codes used in the safety assessment of nuclear installations.

Author: Guenther Von Elbe
Publisher:
ISBN:
Category : Liquefied gases
Languages : en
Pages : 96

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Book Description
Hazards associated with the use of li uid ydrog i r rc n dev lop nt facili i r i cu pplic bl c iques of hazard prevention and control are r view T physical and chemical properties of hydrogen are summarized with emphasis on the relation of these properties to combustion a d o io proces . Informatio coll c ed on e p ri c prac ices in numerous facilities. Hazards comprise the possibility of pressure rupture of containers, initiation of flammable mixtures formed by release of hydrogen due to vessel f ilure or o r c u plo io of hy rog n and contaminating oxyg u er cryog nic co ditio ORY OF CHEMIC L REACTION PROVIDES A COMPLETE UNDERSTANDING OF THE COMBUSTION AN DETONATION CHARACTERISTICS OF HYDROGEN-OXYGEN SYSTEMS AND DEFIN S THE CHEMICAL AND PHYSICAL REQUIRE TS FOR I IBI IO CO ROL OF COMBU IO ND DETONATIO . General f y proc ur r ugg e and subjects warranting further investigation in icated. (Author).

Author: Hanane Dagdougui
Publisher: Academic Press
ISBN: 0128120355
Category : Technology & Engineering
Languages : en
Pages : 166

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Book Description
Hydrogen Infrastructure for Energy Applications: Production, Storage, Distribution and Safety examines methodologies, new models and innovative strategies for the optimization and optimal control of the hydrogen logistic chain, with particular focus on a network of integrated facilities, sources of production, storage systems, infrastructures and the delivery process to the end users through hydrogen refueling stations. The book discusses the main motivations and criteria behind the adoption of hydrogen as an energy carrier or future fuel alternative. It presents current research in hydrogen production processes, especially from renewable energy sources, as well as storage and distribution. The book also reviews methods to model hydrogen demand uncertainties and challenges for the design of the future hydrogen supply chain. The authors go on to explore the network planning of hydrogen infrastructures, the safety and risk issues in hydrogen logistics and their future expectations. Energy engineering professionals, researchers and graduate students will find this a helpful resource to understand the methodologies used to assess the feasibility for developing hydrogen supply chains, hydrogen infrastructure and safety practices. Energy analysts and government agents can benefit from the book's detailed discussion of hydrogen energy applicability. Describes in detail the current state of the available approaches for the planning and modeling of the hydrogen infrastructure Discusses safety issues related to hydrogen in different components of its logistic chain and the methodological approach to evaluate risks that results from hydrogen accidents, including a mathematical model to assess the hazard and consequences of an accident scenario of hydrogen in pipelines Proposes a decision support system for hydrogen energy exploitation, focusing on some specific planning aspects, such as selection of locations with high hydrogen production, based mainly on the use of solar and wind energies Presents a short-term scenario of hydrogen distribution for automotive use, with a concrete, detailed, operative plan for a network of refueling service stations for the hydrogen economy