Flammability limits in cocurrent smoldering combustion

Conference · Sat Aug 01 00:00:00 EDT 1987

OSTI ID:6250359

Dosanjh, S S

The effect of heat losses on cocurrent (premixed-flame-like) smoldering combustion is investigated using activation energy asymptotics. Expressions for the smolder velocity and the maximum temperature were derived in the limit of large activation energies. Heat losses were taken to vary with temperature. One result was that solutions ceased to exist when either the oxygen concentration or the inlet oxygen mass flux was lowered below certain critical values. Flammability limits were determined for a polyurethane foam. 6 refs., 2 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6250359
• Report Number(s): SAND-87-1357C; CONF-871118-4; ON: DE87014102
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACTIVATION ENERGY
ASYMPTOTIC SOLUTIONS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLLOIDS
COMBUSTION
COMBUSTION KINETICS
COMBUSTION PROPERTIES
DISPERSIONS
ELEMENTS
ENERGY
ENERGY LOSSES
EQUATIONS
FLAMMABILITY
FLUID FLOW
FOAMS
GAS FLOW
HEAT LOSSES
KINETICS
LOSSES
MATERIALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
OXYGEN
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTIC FOAMS
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
POROUS MATERIALS
REACTION KINETICS
SYNTHETIC MATERIALS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES