Measurement of geometric and radiative properties of heptane pool fires

Flame emissivity is determined from the mass burning rate as well as a refined technique that determines the transmissivity of the electrically heated strips placed behind the flame. Radiative properties such as temperature distribution and irradiance at a distance are calculated from the thermal images. The irradiance at a distance obtained using the infrared camera is compared with Schimdt-Boelter gauge. The effect of fire size on the optical thickness, radiative fraction and fire safety distance has been examined.