Experimental study on the response characteristics of photoelectric smoke detectors below grid ceilings of different hollowing rate

摘要：

　　There are many differences on the setting requirements of fire detectors in the buildings used grid or flat ceilings.In this paper,applied researches on the setting standard of fire detector below grid ceilings were firstly carried out.On the basis of the setting requirements of fire detector,the numerical simulation of smoke movement below and above grid ceilings with four kinds of hollowing rates was conducted in the standard combustion lab by using FDS software.After that,according to the GB4715-2005 National Standards sensitivity requirements of the 75mm×75mm size grid ceilings,the experimental researches on the response characteristics of photoelectric smoke detectors,which were above or under the grid ceilings,were carried out under conditions of different obscuration rates and in FDS simulations.Finally,through comparative analysis of the experimental study and numerical simulation results,the correctness of numerical simulations and the feasibility of using FDS to study the smoke spread below and above grid ceilings were validated.

关键词： fire detector grid ceiling hollowing rate smoke spread characteristic

作者: CHEN Nan ZHANG Tianwei MEI Zhibin

作者单位: Fire Engineering Department of Chinese People Armed Police Force Academy,Langfang 065000,Hebei,China Fire Alarm Laboratory of Shenyang Fire Research Institute,Shenyang 117000,Liaoning,China

会议类型: 国际会议

会议名称: 2012 International Symposium on Safety Science and Technology (2012安全科学与技术国际会议)

会议地点: 南京

会议语种:英文

页码: 602-609

在线出版日期: 2012-10-23（万方平台首次上网日期，不代表论文的发表时间）