Accession Number : ADA310872

Title :   Water-Based Halon Replacement Sprays.

Descriptive Note : Final rept. Jan-Sep 95,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Finnerty, Anthony E. ; McGill, Robert L. ; Slack, Wayne A.

PDF Url : ADA310872

Report Date : JUL 1996

Pagination or Media Count : 39

Abstract : Water delivered as a spray is more effective against hydrocarbon fires than a stream of water. Water as a mist is even more effective. The delivery system influences the effectiveness of water. The major problem with using water in a combat vehicle is freezing at low temperatures. Additives can be added to lower the freezing point Thus, water solutions may be usable under all expected operating conditions. Experiments have been conducted using sprays of water and water with additives to extinguish JP-8 pool fires. Additives were chosen to provide low freezing points to the water and to improve the fire extinguishing capability of the water. As expected, sprays of just water were not particularly effective for extinguishing JP-8 pool fires. Water with calcium chloride, added to give a -55 deg C freezing point, showed no improvement in fire suppression over the baseline water tests. Other additives, however, showed remarkable improvements over the water case.

Descriptors :   *WATER, *REPLACEMENT, *FIRE SUPPRESSION, *HALOGENATED HYDROCARBONS, *SPRAYS, *EXTINGUISHING, TEST AND EVALUATION, LOW TEMPERATURE, SOLUTIONS(MIXTURES), TEST METHODS, FRESH WATER, FREEZING, BASE LINES, HYDROCARBONS, CHLORIDES, COMBAT VEHICLES, ADDITIVES, FIRES, CALCIUM COMPOUNDS, STREAMS, FLUORINATED HYDROCARBONS.

Subject Categories : Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE