Modelling absorption and dilution of unconfined releases of hazardous gases by water curtains or monitors

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Description

OSHA Process Safety Management guidelines suggest that a facility operator investigate and document a plan for installing systems to detect, contain, or mitigate accidental releases if such systems are not already in place. In addition, proposed EPA 112(r) regulations would require such analysis. This paper illustrates how mathematical modelling can aid such an evaluation and describes some recent enhancements of the HGSPRAY model: (1) Adding algorithms for modeling NH{sub 3} and LNG mitigation; (2) Modeling spraying of releases with fire water monitors encircling the point of release; (3) Combining wind tunnel modeling with mathematical modeling; and (4) Linking HGSPRAY and ... continued below

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20 p.

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Fthenakis, V.M.; Blewitt, D.N. & Hague, W.J. May 1, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 21 times . More information about this article can be viewed below.

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  • Fthenakis, V.M. Brookhaven National Lab., Upton, NY (United States)
  • Blewitt, D.N. Amoco Production Co., Chicago, IL (United States)
  • Hague, W.J. Allied-Signal, Inc., Morristown, NJ (United States)

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Description

OSHA Process Safety Management guidelines suggest that a facility operator investigate and document a plan for installing systems to detect, contain, or mitigate accidental releases if such systems are not already in place. In addition, proposed EPA 112(r) regulations would require such analysis. This paper illustrates how mathematical modelling can aid such an evaluation and describes some recent enhancements of the HGSPRAY model: (1) Adding algorithms for modeling NH{sub 3} and LNG mitigation; (2) Modeling spraying of releases with fire water monitors encircling the point of release; (3) Combining wind tunnel modeling with mathematical modeling; and (4) Linking HGSPRAY and BEGADAS. Case cases are presented as examples of how HGSPRAY can aid the design of water spray systems for initiation of toxic gases (e.g., BF, NH,) or dilution/dispersion of flammable vapors (e.g., LNG).

Physical Description

20 p.

Notes

OSTI as DE95011350

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  • International conference and workshop on modeling and mitigating the consequences of accidental releases of hazardous materials, New Orleans, LA (United States), 26-29 Sep 1995

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  • Other: DE95011350
  • Report No.: BNL--61619
  • Report No.: CONF-950927--2
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 88669
  • Archival Resource Key: ark:/67531/metadc793496

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  • May 1, 1995

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  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 6, 2016, 5:32 p.m.

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Fthenakis, V.M.; Blewitt, D.N. & Hague, W.J. Modelling absorption and dilution of unconfined releases of hazardous gases by water curtains or monitors, article, May 1, 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc793496/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.