Accession Number:

ADA416497

Title:

The Effects of Air-Borne Water Mist on a Forced Convection Boundary Layer Flame over a Non-Charring Solid

Descriptive Note:

Memorandum rept.

Corporate Author:

NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC

Report Date:

2003-05-30

Pagination or Media Count:

27.0

Abstract:

This report presents preliminary results of an experimental study of water mist suppression of forced flow boundary layer flames over a non-charring solid, where fine water mist was introduced with the incoming air. In this configuration, extinguishment at high mist flow rates is achieved only by flame blow-off. With small droplets 5O micrometer at low mist flow rates, the time-averaged local burning rate seems to be suppressed in the leading section and enhanced downstream. A comparison of the burning rate and temperature data between tests with mist and tests with nitrogen dilution suggest that this enhancement in burning rate is caused by mist-induced turbulence.

Subject Categories:

  • Marine Engineering
  • Safety Engineering
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE