Global Combustion Behavior of 1 MW to 3 MW Hydrocarbon Spray Fires Burning in an Open Environment

摘要

A series of experiments were conducted in order to determine the global combustion behavior of a number of liquid fuels burning in large (1 MW to 3 MW) spray fires in an open environment. The experiments described here provide a characterization of the global fire characteristic of the liquid spray burner, which is a standard fixture in the NIST Large Fire Laboratory. The fuels tested include n-heptane, toluene, a commercial blend of heptane isomers, Jet A, and a heptane/toluene fuel mixture. The fuel flow was controlled. Measurements were made of the radiative emission to the surroundings, the heat release rate, and the emission of soot, CO2, and CO. These measurements were normalized by the mass burning rate to determine the radiative heat loss fraction, the combustion efficiency, and the yields of soot, CO2, and CO.