Analysis of Major Factors for Designing Large Scale Cone-calorimeters

In this study, fundamental research was conducted to analyze the correlation between the main design factors of large-scale cone-calorimeters and the heat release rate. The specifications for designing cone-calorimeters of 1 MW or higher, which have been constructed in foreign research institutes, were investigated. In addition, the relationship between the total amount of smoke generated in the plume and the heat release rate determined via the oxygen consumption method was reviewed. The temperature variation inside the duct and the oxygen concentration could be decreased as the height and size of the hood increased. These results could have an important effect on the mass flow rate and oxygen consumption coefficient when calculating the heat release rate. To accurately determine the heat release rate of a large cone-calorimeter is determined, further research is necessary to analyze the design factors considering not only the blowing capacity but also the shape of the hood and height from the fire source.