Cone Calorimeter - An Alternative Calibration Constant Calculation

摘要

This paper focuses on an alternative method of calculating the calibration constant, C, used in the cone calorimeter. The alternative method is derived from the principles of thermochmeistry. It is based on carbon dioxide measurements And implicit knowledge of water vapour and fuel mass loss and is independent of the oxygen concentration. In the final Form, the equation for the alternative calibration constant is much simpler than the standard equation. An uncertainty Analysis of the alternative technique is also presented in this paper and the alternative method was found to a have Marginally lower uncertainty than the Standard method. Notwithstanding these advantages, the Standard method Remains the preferred technique for calculating the calibration constant as it is based on the operating principle of the Apparatus and includes an oxygen measurement term. However, the alternative method can be easily incorporated Into software and act as a means for checking/troubleshooting the cone calorimeter.