What is the principle of a cone calorimeter?

The cone calorimeter is actually a material combustion-related performance testing instrument based on the principle of oxygen consumption. After 30 years of improvement and perfection, the cone calorimeter has become one of the most important test instruments for studying the combustion performance of materials.

Cone calorimeters are generally based on the principle of oxygen consumption, because the principle of oxygen consumption is used to measure the heat release rate of materials. Therefore, the related oxygen consumption principle is that when the material is burned, the heat released by each unit of oxygen will be basically the same, and then that value can be measured.



Generally, in the experiment, we can load relevant samples on the load cell to measure the mass loss rate of the sample during the combustion process; heating samples are generally ignited by electric spark ignition, so we can test their flammability and ignition time; The combustion gas is collected in the accompanying pipe and exhaust hood, and then the heat release rate and other indicators can be automatically tested by collecting the flue gas pressure difference, gas concentration and temperature changes; then optical devices can also be used to measure the smoke density Performance parameters;

In this way, the above data can be used to obtain extended data such as effective combustion heat and specific extinction area. The cone calorimeter test has a safe, fast and accurate detection method. In addition to product development, the cone calorimeter can also be used as a quality control tool.