Accession Number : AD0754498

Title :   Hazards of Spillage of LNG into Water.

Descriptive Note : Final rept. 15 Jan 71-14 Jan 72,

Corporate Author : BUREAU OF MINES PITTSBURGH PA PITTSBURGH MINING AND SAFETY RESEARCH CENTER

Personal Author(s) : Burgess,D. ; Biordi,J. ; Murphy,J.

Report Date : SEP 1972

Pagination or Media Count : 92

Abstract : The program was a follow-on to an earlier (1969) study in which the spillage of liquefied natural gas (LNG) into water produced unexpected vapor explosions. The two main objectives of the present study were to assess the hazards of vapor explosions, and to repreat on larger scale the earlier observations of atmospheric dispersion of the natural gas downwind of a spill. The LNG came from two domestic sources: One in which heavy hydrocarbons were present in very low concentration and which vaporized quietly; One in which the ratio ethane/heavier hydrocarbons was about 10/1 and which provided numerous delayed vapor explosions. No explosion was obtained which duplicated the 1969 experience. The program did not reveal the mechanism of vapor explosions. The program did show that explosions under various experimental conditions did not ignite the flammable vapor cloud and that the energy release is very modest relative to chemical explosions. (Author)

Descriptors :   (*FUELS, *EXPLOSIONS), MARINE TRANSPORTATION, HAZARDS, SAFETY, HEATING, HEAT TRANSFER, ACCIDENTS, VAPORS, WATER

Subject Categories : Safety Engineering
      Explosions
      Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE