The Performance Based Design of Fire Detectors

• Main Authors: Hong-Xiang Chen, 陳泓翔
• Other Authors: San-Ping Ho
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/16036435534610368541

碩士 === 長榮大學 === 職業安全與衛生學系碩士班 === 94 === In Taiwan, the fire protection regulations often define some rigid requirements that can't be altered. If we can cooperate with the most popular Performance Based Design (PBD), we can solve the problems that a lot of traditional regulations can't be solved. According to the test standards of fixed temperature heat detectors in Taiwan, this research found Response Time Index (RTI) of heat detectors was fixed no matter what activation temperature is. But the test standards of this and Underwriters Laboratories (UL) are different in some requirements. And the fire protection regulations in Taiwan can be improved to better, especially when there is a beam in the room. If the beam’s height exceeds 40cm, we should divide the room into two blocks; if the height is under 40cm, need not be divided into two blocks. This regulation also differs from norm of 72 of U.S.A. NFPA (National Fire Protection Association) greatly. According to the simulation result of this research, beams had significant effects to heat detector actuation in the large room area, Moreover, general cognition about the temperature rising curve of steady state fire (oil fire) differs from actual fire test. Fire Dynamics Simulator (FDS) overestimated the temperature curve of a pool fire scenario. A better FDS simulation could be obtained by using the temperature rising curve data from a heptanes’ oil fire. The domestic regulations are more conservative in lower room temperature occupancy, but U.S. regulations provide the better protection requirements in higher room temperature occupancy. The smoke detectors are necessary to classify to three groups from the sensitivity tests.