Preliminary Test and Evaluation of the Concept of Applying Water Mist in the Primary Damage Area (CD-ROM)

ELECTRONIC FILE CHARACTERISTICS: 1 file; MS Word (.DOC). PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 3.39 MB and 1 hardcopy report. SYSTEMS DETAIL NOTE: ABSTRACT: Water mist systems can be used to thermally manage conditions in the primary damage area (PDA) and effectively provide boundary cooling. Overall, the high pressure systems were more effective than the low pressure systems in totally extinguishing fires, which provides the greatest degree of thermal management. For equivalent flow rates, high pressure systems performed better than low pressure systems in terms of extinguishment and thermal management. For the test where the same nozzle design was used, greater flow rate generally resulted in improved thermal management. Nozzle design (pattern, flow, projection) has an impact on thermal management characteristics (flow rate alone is not a reliable indicator of performance). In general, the use of the obstruction did not seem to greatly impact the ability of the water mist system to thermally manage the PDA and prevent flashover. This test series only evaluated Class B fuels.
CD-ROM contains appendices A-C. Hardcopy report accompanies CD-ROM. Prepared in cooperation with Hughes Associates, Inc. Baltimore, MD.