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The Structure of Medium-Scale Pool Fires



Ryan Falkenstein-Smith, Kunhyuk Sung, Jian Chen, Kimberly Harris, Anthony Hamins


This report documents a series of time-averaged gas species measurements made along the centerline of methanol, ethanol, acetone, methane, and propane pool fires steadily burning in a quiescent environment. All gas species measurements are obtained using a Gas Chromatograph/ Mass Spectrometer System (GC/MS) for gas samples extracted at various heights above the fire and repeated at least twice at each location. Gas species volume fractions are determined via the GC/MS using predetermined calibration factors. Soot mass fractions are simultaneously measured during the gas sampling process. The gas species volume and soot mass fractions are compared at different heights within the fire and across a variety of different fuels. Other fire parameters are measured as well, including time-averaged temperature and velocity measurements and mass burning rates.
Technical Note (NIST TN) - 2082e2
Report Number


Acetone, Ethanol, Gas pool fires, Gas species measurements, Liquid pool fires, Methane Methanol, Propane


Falkenstein-Smith, R. , Sung, K. , Chen, J. , Harris, K. and Hamins, A. (2022), The Structure of Medium-Scale Pool Fires, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online],, (Accessed April 16, 2024)
Created January 5, 2022, Updated November 29, 2022