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Author
Maranghides, A. | Sheinson, R. S. | Black, B. H. | Peatross, M. J. | Smith, W. D.
Title
Effects of a Water Spray Cooling System During Real Scale Halon 1301 Replacement Testing on Post Fire Suppression Compartment Reclamation.
Coporate
Naval Research Laboratory, Washington, DC GEO-Centers, Inc., Ft. Washington,MD Hughes Associates, Inc., Baltimore, MD
Report
NRL/MR/6180-97-7938, April 14, 1997, 18 p.
Book or Conf
Halon Options Technical Working Conference. Proceedings. HOTWC 1996. Sponsored by: University of New Mexico, Halon Alternative Research Corp., National Association of Fire Equipment Distributors, Inc., Hughes Associates, Inc., and Kidde International. May 7-9, 1996, Albuquerque, NM, 435-446 p., ['1997', '1996']
Keywords
water sprays | cooling | halon 1301 | fire suppression | halon alternatives | compartments | ships | shipboard fires | machinery | fire tests
Identifiers
heptafluoropropane; real-scale testing; water spray cooling system
Abstract
Real scale tests were conducted aboard the ex-USS SHADWELL with HFP (HFC-227aea, C3F7H, manufactured by Great Lakes Chemical Corporation as FM-200), with limited baseline comparison tests with Halon 1301. Two of the objectives of the full scale machinery space testing were to determine the optimum post fire suppression hold time (time prior to venting) and to evaluate the option of using a water spray cooling system (WSCS) to reduce compartment temperature and acid decomposition products and therefore expedite compartment reclamation. Results show that the WSCS system employed is a viable option for rapid reduction of compartment temperature. The low water pressure WSCS tested provided very rapid compartment temperature reduction in 15 seconds with less than 20 gallons of water. The ability of the WSCS to run off the ship's Fire Main Water supply for from its own relatively small pressurized water tank make it a viable option for rapid post incident compartment reentry by the fire fighting party. Tests also provided information on WSCS initiation prior to agent discharge and its effectson fire suppression and acid by-product reduction.