New PDF release: Estimating the Flammable Mass of a Vapor Cloud: A CCPS

By John L. Woodward

ISBN-10: 0470935367

ISBN-13: 9780470935361

ISBN-10: 0816907781

ISBN-13: 9780816907786

This CCPS proposal booklet exhibits designers and operators of chemical amenities the way to realistically estimate the flammable mass in a cloud of by accident published fabric that's able to igniting. It offers info on adventure with flammable vapor clouds, easy suggestions of fires and explosions, and an summary of comparable desktop programs.Content:
Chapter 1 creation (pages 1–4):
Chapter 2 evaluate (pages 5–9):
Chapter three studies with Flammable Vapor Clouds (pages 11–29):
Chapter four easy Concepts—Fluid movement, Fires, and Explosions (pages 31–130):
Chapter five decision of Flammable Mass (pages 131–167):
Chapter 6 evaluation of comparable machine courses (pages 169–181):
Chapter 7 labored Examples (pages 183–203):
Chapter eight suggestions for destiny paintings (pages 205–207):

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2. 4. Arrangement of tank trucks inside vapor cloud as modeled by REAGAS model. 5. Temperature fields predicted by REAGAS model near tank trucks at Saint Herblains, France. Light color is >2500 K. dark is <1750 K. ) 16 3. 6. Overpressures predicted between the last two tank trucks in the vapor cloud at Saint Herblains, France. 4 for location of points P4 and P5. ) occurring under meteorological conditions giving poor dispersion (F stability, c 1m/s wind speed). 3. Pampa, Texas, Hoechst-Celanese Explosion, November 17, 1987 The Pampa plant used liquid phase oxidation of butane with air about 49 bar(a) (700 psig) to produce acetic acid and acetic anhydride.

Woodward Copyright © 1998 American Institute of Chemical Engineers INDUSTRY EXPERIENCES WITH FlAMMABLE VAPOR CLOUDS It is the success of engineeringwhich holds back the growth of engineering knowledge, and its failures which provide the seeds for its future development. -Blockley and Henderson, 1980 This chapter provides examples of major incidents that have occurred releasing flammable materials. 2. 1. 1. This figure analyzes the 100 largest property losses for the period 1966-1996. Vapor cloud explosions account for the largest proportion of losses both by number of events and by dollar loss (inflation adjusted).

Gasoline leaked continuously and developed a large aerosol cloud of about 23,000 m3 that covered the road and parking lot and part of the storage area. Four tank trucks in the area of the cloud had their motors running. About 20 min later, the aerosol cloud was ignited and a gas explosion developed. Storage tanks were damaged and tank trucks were overturned and burned. This event was extensively analyzed to see why the conditions led to flame acceleration and an explosion. 4 (Lechaudel and Mouilleau, 1995).

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Estimating the Flammable Mass of a Vapor Cloud: A CCPS Concept Book by John L. Woodward

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