- Author
-
Back, G. G.
|
DiNenno, P. J.
|
Leonard, J. T.
|
Darwin, R. L.
- Title
- Full Scale Tests of Water Mist Fire Suppression Systems for Navy Shipboard Machinery Spaces. Part 2. Obstructed Spaces. September 1993-December 1994.
- Coporate
- Hughes Associates, Inc., Baltimore, MD
Naval Sea Systems Command, Washington, DC
Naval Research Laboratory, Washington, DC
- Sponsor
- Naval Sea Systems Command, Washington, DC
- Report
-
NRL/MR/6180-96-7831,
March 8, 1996,
29 p.
- Keywords
-
water mist
|
fire suppression
|
ships
|
machinery
|
halon alternatives
|
large scale fire tests
|
nozzles
|
halon 1301
|
spray nozzles
- Identifiers
- machinery space fires
- Abstract
- The Phase 2 tests were conducted in a simulated machinery space on the Navy's fire test ship, the ex-USS Shadwell. It was the same space as used in the Phase 1 tests except that it was fitted with mockups of equipment to further evaluate the firefighting capabilities of the water mist system in a more realistic machinery space environment. The fire threats were a combination of spray and pan fires in the range of 2.5 to 7.5MW. Five different types of spray nozzles were evaluated. Initially, the nozles were installed in the overhead at one level as in the Phase 1 study. Then, to improve the performance of the system, the nozzles were installed on two levels as is the practice with Halon systems. With the best system, all of the fires were extinguished in less than 25 seconds, using less than 100l (25 gallons) of water.