Research on the characteristic parameters of fire in the cargo hold of aircraft in the presence of combustible materials and an ignition source state

• Published in: Hangkong Gongcheng Jinzhan Vol. 15; no. 4; pp. 179 - 188
• Main Authors: BU Zonghao, WANG Haibin, ZHANG Zhihui, LIU Quanyi
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Advances in Aeronautical Science and Engineering 01.08.2024
• Subjects: blue light; fire characterization parameters; fire smoke identification; infrared light; photoelectric smoke detectors; sauter mean particle size; scattered light power
• ISSN: 1674-8190
• DOI: 10.16615/j.cnki.1674-8190.2024.04.20

At present, the civilian aircraft cargo hold is mainly used photoelectric smoke detector as a fire smoke identification, due to the other interference particles（dust, or water vapor, etc）will be suspended in the aircraft cargo hold, which will trigger the fire detector alarm, there is a high false alarm rate problem. Based on the dual-wavelength photoelectric smoke detector can effectively reduce the problem of high false alarm rate, the collection of aircraft cargo hold typical combustibles as well as interference sources of infrared light scattering power, blue light scattering power as a fire parameter, through the particulate matter of infrared light scattering power and blue light scattering power analysis, as well as a collection of the Sauter mean particle size analysis for the subsequent development of composite smoke detector optimization of the fire parameter. Results show that the infrared and blue light have a good effect on the fire smoke particles, and a better response to fire smoke particles.