The study of activated mechanism of sprinklered system and detector on fire suppression effect in buildings

• Main Authors: Rong-Feng Tsai, 蔡榮鋒
• Other Authors: HSUAN-TING CHANG
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/77103020195963445097

博士 === 雲林科技大學 === 工程科技研究所博士班 === 99 === The performance-based fire safety design in buildings has been studied for a long period of time in Taiwan. A precise method for measuring the smoke layer height is developed by the patent “Development and Research the Method of Measure Smoke Layer”. This method avoids false alarms due to uncertainty of smoke movement. This project applied the technology to the detector-sprinkler system and intended to understand the fire suppression effect by a short sprinkler activation time. Generally, the smoke will be detected earlier than heat and fire. Therefore, smoke detector response correct and provide signal to activate sprinkler system. However, sometimes the grass ball did not break at the design temperature and the smoke was larger enough to obstruct the evacuation. Thus, a modified try-sprinkler system was investigated in this thesis. Important parameters of smoke detector were studied first including the smoke, light and fire. The laser beam detectors were used in this project to increase the accuracy of the operation time. The laser beam detector is coupled with the try-sprinkler system may provide a better fire suppression effect during a fire. The close type sprinkler can control the fire but not suppress it. Using the new development, the accurate smoke detector signal may provide a correct sprinkler activated time to suppress a building fire.