Infrared radiation and smoke characteristics test of open wood fire and decalin fire

The combustion of different substances has different spectral and smoke characteristics. Decalin in the international standard ISO7240-15 has low-temperature black smoke combustion characteristics, while wood open fire can simulate the combustion characteristic of a large number of wood stacking site. These two types of test fires are not covered in Chinese standards. This article establishes a flame infrared radiation measurement system, which tests decalin and wood open flames respectively, and qualitatively evaluates its performance evaluation effect on point-type flame detectors; Conduct smoke characteristic tests on decalin and wood open fire, testing point-type smoke detectors and point-type fire detectors using smoke and heat sensors based on these two test fires. The results indicate that the two standard test fires in ISO have good evaluation effects on detectors of different types and applications. The open wood fire can simulate the development process of wood combustion, while decalin simulates low-temperature and dense smoke combustion.