Modeling Unconfined Vapor Cloud Explosions for Risk Assessment Calculations PDF Download

Author: Timothy Allen Melton
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 278

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Author: Salem Alghamdi
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
In development projects, designers should take into consideration the possibility of a vapor cloud explosion in the siting and design of a process plant from day one. The most important decisions pertinent to the location of different process areas, separation between different areas, location of occupied buildings and overall layout may be made at the conceptual stage of the project. During the detailed design engineering stage the final calculation of gas explosion loads is an important activity. However, decisions related to the layout and location of occupied buildings at this stage could be very costly. Therefore, at the conceptual phase of the development project for a hydrocarbon facility, it would be helpful to get a picture of possible vapor cloud explosion loads to be used in studying various options. This thesis presents the analytical parameters that are used in vapor cloud explosion risk analysis. It proposes a model structure for the analysis of vapor cloud explosion risks to buildings based on exceedance methodology. This methodology was developed in a computer program which is used to support this thesis. The proposed model considers all possible gas release scenarios through the use of the Monte Carlo simulation. The risk of vapor cloud explosions can be displayed using exceedance curves. The resulting model provides a predictive tool for vapor cloud explosion problems at the early stages of development projects, particularly in siting occupied buildings in onshore hydrocarbon facilities. It can also be used as a quick analytical tool for investigating various aspects of vapor cloud explosions. This model has been applied to a case study, a debutanizer process unit. The model was used to explore the different alternatives of locating a building near the facility. The results from the model were compared to the results of other existing software to determine the model validity. The results show that the model can effectively examine the risk of vapor cloud explosions.

Author: John L. Woodward
Publisher: John Wiley & Sons
ISBN: 0470935359
Category : Technology & Engineering
Languages : en
Pages : 326

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Book Description
This CCPS Concept book shows designers and operators of chemical facilities how to realistically estimate the flammable mass in a cloud of accidentally released material that is capable of igniting. It provides information on industry experience with flammable vapor clouds, basic concepts of fires and explosions, and an overview of related computer programs.

Author: CCPS (Center for Chemical Process Safety)
Publisher: John Wiley & Sons
ISBN: 0470938145
Category : Technology & Engineering
Languages : en
Pages : 401

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Book Description
The serious consequences of vapor cloud explosions, flash fires, and BLEVEs are very well known. Better understanding of the characteristics of these phenomena and models to calculate their consequences are key to effective prevention and mitigation. Cited by EPA in its 1996 document, "Off-site Consequence Analysis Guidance, " the first half of the book describes the characteristics of these phenomena and gives an overview of past experimental and theoretical research and methods to estimate consequences. The second part focuses on methods for consequence estimating by presenting sample problems. The entire book is heavily illustrated with photos, charts, tables, and diagrams, and each chapter has a full set of references for additional reading.

Author: CCPS (Center for Chemical Process Safety)
Publisher: John Wiley & Sons
ISBN: 1118209877
Category : Technology & Engineering
Languages : en
Pages : 358

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Book Description
This guide provides an overview of methods for estimating the characteristics of vapor cloud explosions, flash fires, and boiling-liquid-expanding-vapor explosions (BLEVEs) for practicing engineers. It has been updated to include advanced modeling technology, especially with respect to vapor cloud modeling and the use of computational fluid dynamics. The text also reviews past experimental and theoretical research and methods to estimate consequences. Heavily illustrated with photos, charts, tables, and diagrams, this manual is an essential tool for safety, insurance, regulatory, and engineering students and professionals.

Author: Renato Benintendi
Publisher: Elsevier
ISBN: 0128235179
Category : Technology & Engineering
Languages : en
Pages : 900

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Book Description
Process Safety Calculations, Second Edition remains to be an essential guide for students and practitioners in process safety engineering who are working on calculating and predicting risks and consequences. The book focuses on calculation procedures based on basic chemistry, thermodynamics, fluid dynamics, conservation equations, kinetics and practical models. It provides helpful calculations to demonstrate compliance with regulations and standards, such as Seveso directive(s)/COMAH, CLP regulation, ATEX directives, PED directives, REACH regulation, OSHA/NIOSH and UK ALARP, along with risk and consequence assessment, stoichiometry, thermodynamics, stress analysis and fluid-dynamics. This fully revised, updated and expanded second edition follows the same organization as the first, including the original three main parts, Fundamentals, Consequence Assessment and Quantitative Risk Assessment. However, the latter part is significantly expanded, including an appendix consisting of five fundamental thematic areas belonging to the risk assessment framework, including in-depth calculations methodologies for some fundamental monothematic macro-areas of process safety. Revised, updated and expanded new edition that includes newly developing areas of process safety that are relevant to QRA Provides engineering fundamentals to enable readers to properly approach the subject of process safety Includes a remarkable and broad numbers of calculation examples, which are completely resolved and fully explained Develops the QRA subject, consistently with the methodology applied in the big projects

Author: Robin Turney
Publisher: IChemE
ISBN: 9780852953235
Category : Business & Economics
Languages : en
Pages : 156

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In this updated and amplified edition, Dr Pitblado answers the crucial questions of risk analysis: what can go wrong?; what are the effects and consequences?; and how often will it happen'.

Author: Michalis D Christou
Publisher: Elsevier
ISBN: 0080540619
Category : Technology & Engineering
Languages : en
Pages : 560

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Book Description
The assessment and management of risk to society from the operation of chemical process plants and other industrial activities in which dangerous substances are produced, used, handled or stored will remain a topic of great importance in the next decade. In order to evaluate this specific risk on a qualitative and/or quantitative basis, the concepts of risk analyses are linked together in this book. The "performance based" and "goal oriented" regulatory requirements of the European Council's new "Seveso II Directive" for the identification of large scale industrial hazards, prevention of sudden and uncontrolled releases of dangerous substances from industrial plants and mitigation of serious consequences of industrial accidents to people and the environment are examined. The fact that risk assessment and management are key elements to such forms of regulation is also demonstrated. While the "Seveso II Directive" defines "what" has to be achieved on the control of major hazards involving dangerous substances within the European Union, the methods of risk assessment and management give guidance on "how" to achieve it. The text provides a practical guide for decision-makers in regulatory bodies and companies with a non-technical background. Scientists and engineers who are not yet familiar with the concepts of risk assessment and who want a survey of some fundamentals of, and principal results from, risk assessment studies and approaches primarily for applications in the context defined by the "Seveso Directives" will also find this book invaluable.

Author: M. M. Hirschler
Publisher: ASTM International
ISBN: 0803114478
Category : Carbon monoxide
Languages : en
Pages : 254

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Author:
Publisher: Elsevier
ISBN: 0080962319
Category :
Languages : en
Pages : 3685

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