Feasibility Study of Thixogelled Fire Extinguishant for Submarines.
Abstract
Present work to enable on board use of the gelled-mix extinguisher is aimed at refining the gel structure demonstrating storage stability, and evaluating hardware modifications to ensure efficient delivery of the extinguishant. The program has continued to demonstrate the high degree of firekill effect shown in the previous work, and in addition demonstrate a great reduction in visual obscuration and cloud formation. Evaluation of hardware variations and mix formulations was made in larger carbon dioxide fire extinguisher canisters (5, 10 and 15 pound capacities). A large number of different gelling materials were tested in carbon dioxide/PKP formulations; hardware variations included dip tube size, a three finger dip tube, an agitator on the dip tubes, and nozzle configurations with opened orifices and flow paths. The results of this testing in the larger canistes were all similar; expulsion was often interrupted, yielding low expulsion efficiencies. In spite of this, panfires were routinely extinguished before interruption occurred.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1983
- Accession Number
- ADA146736