TY - JOUR PY - 2005// TI - Uncertainty analysis of heat release rate measurement from oxygen consumption calorimetry JO - Fire and materials A1 - Brohez, Sylvain SP - 383 EP - 394 VL - 29 IS - 6 N2 - Oxygen consumption calorimetry remains the most widespread method for the measurement of the heat release rate from experimental fire tests. In a first step, this paper examines by theoretical analysis the uncertainty associated with this measurement, especially when CO and soot corrections are applied. Application of theoretical equations is presented for chlorobenzene which leads to high values of CO and soot yields. It appears that the uncertainty of CO and soot corrections are high when the fuel composition is unknown. In a second step, a theoretical analysis is provided when the simplest measurement procedure is used for oxygen consumption calorimetry. The overall uncertainty can be dominated either by the uncertainty associated with the oxygen concentration, the assumed heat of combustion, the fumes mass flow rate or the assumed combustion expansion factor depending on the oxygen depletion.

LA - SN - 0308-0501 UR - http://dx.doi.org/ ID - ref1 ER -