Determination of Water Spray Drop Size and Velocity From a Low Pressure, High Momentum, Water Mist Nozzle. Report of Test.
Determination of Water Spray Drop Size and Velocity From
a Low Pressure, High Momentum, Water Mist Nozzle.
Report of Test.
(824 K)
Putorti, A. D., Jr.; Belsinger, T. D.; Twilley, W. H.
FR 4000; 15 p. May 31, 1995.
Available from:
: Fire Research Information Services,
National Institute of Standards and Technology,
Gaithersburg, MD 20899
Keywords:
water mist; water sprays; drop size measurement; drop
sizes; sprays; velocity measurement
Abstract:
In order to characterize the water spray from a low
pressure, high momentum water mist nozzle, measurements
were made using an optical array probe droplet analyzer.
The water droplet sizes and velocities from the nozzle
were measured at varying operating conditions and
locations in the spray field. The study resulted in
droplet size and velocity ranges for the nozzle, as well
as mean droplet velocities and droplet size
distributions. The pendent nozzle used in this study is
currently being evaluated by listing organizations for
fire suppression in residential and light hazard
occupancies.
