Accession Number:

ADA616469

Title:

Alternative Metal Hot Cutting Operations for Opacity

Descriptive Note:

Technical rept. 16-17 Dec 2013

Corporate Author:

NAVAL FACILITIES ENGINEERING COMMAND PORT HUENEME CA NAVAL FACILITIES ENGINEERING AND EXPEDITIONARY WARFARE CENTER

Personal Author(s):

Report Date:

2014-11-01

Pagination or Media Count:

50.0

Abstract:

Puget Sound Naval Shipyard PSNS IMF is searching for technologies that would allow the shipyard to decommission ships and submarines without violating 20 opacity. An alternative hot cutting gas has been identified that may assist PSNS IMF in meeting production quota while maintaining environmental compliance. To evaluate the claim, a demonstration was performed comparing the performance of the alternative gas with the current gas. From the demonstration, it was determined that the alternative fuel did not significantly produce less opacity compared to propane. Propane was also superior in cutting speed and fuel efficiency. Edison Welding Institute also evaluated the performance of the gas and determined that it cut much faster than propane. However, the test conditions were different from the conditions at the demonstration. Under certain conditions, the alternative fuel will cut faster. However, based on the Navys results, the alternative fuel will not be included in the toolbox of different approaches to recycle ships to comply with the opacity limits.

Subject Categories:

  • Machinery and Tools
  • Marine Engineering
  • Fuels

Distribution Statement:

APPROVED FOR PUBLIC RELEASE