Download or read book Parametric Study of Vapor Explosions Using Flash X rays written by Philip Watts and published by . This book was released on 1994 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effect of fluid properties on the fragmentation behavior of a single molten metal drop interacting explosively with coolant has been investigated experimentally with high-speed regular photography and flash x-ray radiography to visualize the bubble dynamics and drop fragmentation, respectively. Single (0.5 g) drops of tin, bismuth, gallium and Cerrolow heated to between 600-800$ sp circ$C interacting with water at 70$ sp circ$C were investigated. Comparison of the x-ray radiographs shows that in each case the fragmentation occurs in two stages (corresponding to two bubble oscillations). Similar vapor explosions were also observed for molten tin drops interacting with 1-propanol, although the period and amplitude of bubble oscillations both decreased. For 0.1 g aluminum drops heated to 900$ sp circ$C and dropped in water, only a single large interaction was observed." --

Download or read book Investigation of Vapor Explosions with Single Molten Metal Drops in Water Using Flash X ray written by Gaby Ciccarelli and published by . This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In the present study, flash x-ray photography as well as high speed regular photography was used to investigate the fragmentation process during the vapor explosion of single drops of molten metal in water. For drops heated to 700$ sp circ$C, a vapor bubble is formed around the drop after a short induction time of about 80 $ mu$s which grows to a maximum diameter and then collapses. X-ray radiographs, which can "see through" the vapor bubble, show that filaments of metal protruding from the drop surface are produced during the bubble growth. At the time of the bubble collapse, the drop surface is highly convoluted and a second interaction is initiated producing an even larger second bubble in the case of tin drops. A mechanism based on nonuniform superheating and evaporation of the water upon unstable film collapse is proposed to describe the origin of the melt filaments. For liquid drops under isothermal conditions with the water, fragmentation occurs as mass is stripped off the surface due to relative motion of the water. For hot drops at higher flow velocities (i.e., $>$45 m/s) initially a vapor bubble forms but it is quickly displaced downstream. It is proposed that evaporation at the upstream surface of the bubble generates a vapor flow around the drop surface which strips the drop surface. The vapor flow carries the fragments into the bubble region behind the drop. The vapor later condenses leaving a cloud of fragments which are subsequently dispersed by the water. The dynamics of the vapor bubble produced by the explosion of a hot drop under low flow conditions is modeled using a parametric model incorporating the Rayleigh equation for bubble dynamics and an energy equation for the vapor to account for added heat transfer from the distorting drop surface. Estimates of the total heat transferred from the drop show that only 3% of the initial drop thermal energy is converted into work done by the vapor bubble." --

Download or read book Visualization and Void Fraction Measurements in a Molten Metal Bath written by Michael Conway Baker and published by . This book was released on 1997 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vapor Explosions written by Philip Watts and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidelines for Evaluating the Characteristics of Vapor Cloud Explosions Flash Fires and BLEVEs written by CCPS (Center for Chemical Process Safety) and published by John Wiley & Sons. This book was released on 2010-09-14 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Guidelines for Vapor Cloud Explosion Pressure Vessel Burst BLEVE and Flash Fire Hazards written by CCPS (Center for Chemical Process Safety) and published by John Wiley & Sons. This book was released on 2011-12-01 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Guidelines for Evaluating the Characteristics of Vapor Cloud Explosions Flash Fires and BLEVEs written by CCPS (Center for Chemical Process Safety) and published by Wiley-AIChE. This book was released on 1994-12-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fusion Energy Update written by and published by . This book was released on 1981 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidelines for Vapor Cloud Explosion Pressure Vessel Burst BLEVE and Flash Fire Hazards written by Center for Chemical Process Safety (CCPS) and published by Wiley-AIChE. This book was released on 2010-08-16 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.