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Title: Suggestions on Modeling LNG Releases from a Ship.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Industry Forum on LNG Pool Fire Analysis held June 12-13, 2007 in Washington, DC.
Country of Publication:
United States

Citation Formats

Hightower, Marion Michael. Suggestions on Modeling LNG Releases from a Ship.. United States: N. p., 2007. Web.
Hightower, Marion Michael. Suggestions on Modeling LNG Releases from a Ship.. United States.
Hightower, Marion Michael. Fri . "Suggestions on Modeling LNG Releases from a Ship.". United States. doi:.
title = {Suggestions on Modeling LNG Releases from a Ship.},
author = {Hightower, Marion Michael},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}

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  • Abstract not provided.
  • Emergency relief from vessels which have high liquid levels or contain reactive chemicals often results in two-phase gas-liquid releases. Some of these two-phase discharges may be routed to separators and other containment equipment, while others may be directed vertically upward to atmosphere. For two-phase streams vented directly to atmosphere, a method is described for estimating the behavior of the discharge. This includes estimation of the initial liquid droplet sizes formed in the vent, jet expansion, air entrainment, and subsequent evaporation of the liquid droplets. A computer model has been developed which takes into account the air entrainment by the two-phasemore » jet and simultaneously solves the equations of motion and heat and mass transfer to the droplets. After the transient simulation of the vertical two-phase release is completed, a conventional air dispersion model for heavier-than-air stack releases is sued to predict the dimensions of the downwind flammable cloud.« less
  • External radiation levels due to positron annihilation radiation from /sup 11/C, /sup 13/N, and /sup 15/O released by the 800 MeV linear proton accelerator at the Los Alamos Meson Physics Facility (LAMPF) have been monitored at a fence-line location both by thermoluminescent dosimeters (TLDs) and high pressure ionization chambers (HPICs). The accelerator is located in irregular terrain consisting of mesas and canyons. Fifteen-minute, accumulated external radiation levels were recorded with the HPICs. Instruments on a nerby meteorological tower concurrently measured wind speed and direction at three levels, temperature at two levels, solar radiation, and rainfall. Real-time radionuclide release rates andmore » stack velocities were measured at the release point with in-stack monitors. This paper presents analyses of short-term radiation levels using HPICs and long-term levels using TLDs. Work being done to develop a computer model to predict external radiation levels based on meteorological data is also discussed.« less
  • Knowledge of particulate or gaseous removal from the atmosphere is becoming increasingly important for more realistic assessment of the risk involved with hazardous atmospheric releases. In transport models, this removal at the air-surface interface, exclusive of that due to precipitation (rain or snow), is often termed dry deposition. Uncertainties exist with respect to the values of the deposition velocity and to the accurate computation of deposition even if the deposition velocity were known. The purpose in this paper is to present a correlation to the deposition velocity and to examine the accuracy of a computational model proposed by Giorgi inmore » which the size distribution is broken into three sections (groups).« less
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