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Search Publications by: Cary Presser (Assoc)

Displaying 176 - 184 of 184

Suppression of Ignition Over a Heated Metal Surface

September 10, 1995

Author(s)

Anthony P. Hamins, P. Borthwick, Cary Presser

The objective of this work is to investigate the effectiveness of various agents in suppressing flame ignition. Experiments were conducted to determine the amount of agent needed to suppress the ignition of a gaseous propane flow over a heated metal disk

Assessing Halon Alternatives for Aircraft Engine Nacelle Fire Suppression.

May 1, 1995

Author(s)

William L. Grosshandler, Cary Presser, Daniel L. Lowe, William J. Rinkinen

A coaxial turbulent spray burner was built to evaluate the relative effectiveness of different chemicals for suppressing fires in a jet engine nacelle. The fire suppressant of current choice, halon 1301 (CF3Br), must be replaced because of its detrimental

Suppression of Simulated Engine Nacelle Fires (NISTIR 5499)

October 17, 1994

Author(s)

Anthony P. Hamins, D. Baghdadi, P. Borthwick, M Glover, William L. Grosshandler, D L. Lowe, L Melton, Cary Presser

The engine nacelle encases the jet engine compressor, combustor and turbine. A nacelle fire is typically a turbulent diffusion flame stabilized behind an obstruction in a moderately high speed air flow. The most likely source for a fire in the nacelle are

Flame Suppression Effectiveness (NIST SP 861)

April 1, 1994

Author(s)

Anthony P. Hamins, G. Gmurczyk, William L. Grosshandler, R. G. Rehwoldt, I Vazquez, Thomas G. Cleary, Cary Presser, K Seshadri

A flame will be extinguished when the time required for the chain reaction which sustains combustion exceeds the time it takes to replenish the necessary heat and reactants. A characteristic time for reaction can be estimated from the inverse of a global

Fluid Dynamics of Agent Discharge (NIST SP 861)

April 1, 1994

Author(s)

William M. Pitts, Jiann C. Yang, G. Gmurczyk, Leonard Y. Cooper, William L. Grosshandler, W G. Cleveland, Cary Presser

The extinguishment of a fire using gaseous agents is a very complicated process which is not completely understood. Current fire-fighting agents such as halon 1301 and halon 1211 are believed to function by a combination of chemical (catalytic removal of