Accession Number:

ADA244037

Title:

Fire Suppression Testing of Hypergolic Vapor Control Foams

Descriptive Note:

Final rept. 23 Aug 1985-30 Sep 1986

Corporate Author:

NEW MEXICO ENGINEERING RESEARCH INST ALBUQUERQUE

Report Date:

1990-11-01

Pagination or Media Count:

224.0

Abstract:

A recent Air Force study certified certain acrylic modified foams as effective vapor suppression agents for hypergolic propellants, specifically hydrazine and nitrogen tetroxide. Large quantities of these materials are stored and used as rocket propellants in space and defense programs such as the Space Shuttle and Titan. Sizable quantities of these materials are subject to accidental spills and possible ignition during highway transport as well as during handling operations at the storage and use facilities. Thus, the natural follow-on for the vapor suppression certification was to test the effectiveness of these foams against propellant fires under a variety of scenarios. A series of 38 tests with anhydrous hydrazine AH, monomethylhydrazine MMH, unsymmetrical dimethylhydrazine UDMH, Aerozine 50 A-50, and nitrogen tetroxide N2O4 was conducted at the Nevada Test Site in November 1985 and April 1986. This report describes the results of such testing, along with an analysis of products released into the environment when the acrylic-modified foams are used to control hydrazine fires and when the foam-covered hydrazine is later disposed of by burning.

Subject Categories:

  • Miscellaneous Materials
  • Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE