Consequence Assessment Methods published for releases from LNG Carriers

The US Federal Energy Regulatory Commission (FERC) has contracted ABS Consulting Inc to research and review methodologies for modelling liquefied natural gas (LNG) spills on water. The final report, entitled Consequence Assessment Methods for Incidents Involving Releases from Liquefied Natural Gas Carriers, was made available on 14 May 2004 and can be found on the FERC website

The report recommends methods for estimating: spill rates; pool spread and vapour generation for unconfined LNG spills on water; thermal radiation from pool fires on water; and dispersion of flammable vapours. An overview of data relating to the effects of thermal radiation on people and structures is also included. Example calculations are included for spills from 1- and 5-metre-diameter hull breaches to examine the model sensitivities and to illustrate the various methods. The methods recommended by ABS will be used by FERC staff to calculate site-specific flammable vapour and thermal radiation hazards in the National Environmental Policy Act review for each import facility application before the Commission.

Comments are encouraged - an original comment and two copies should be sent to:

Magalie R. Salas, Secretary
Federal Energy Regulatory Commission
888 First St., N.E.
, Room 1A
Washington, DC20426
;
(Label one copy of the comments for the attention of the LNG Engineering Branch, PJ-11.4., Reference Docket No. AD04-6-000)

The deadline for comments is 28 May 2004. Electronic submission is strongly encouraged.See the instructions on the Commission's web site at http://www.ferc.gov under the "e-Filing" link and the link to the User's Guide. Before filing comments, a free account needs to be created (click on "Sign-up").

Contact: Dragos Rauta