The Analysis of Steady State Fire and Time Square Fire Simulations

• Main Authors: Zhan-Yang Lin, 林展仰
• Other Authors: San-Ping Ho
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/65942172403645467128

碩士 === 長榮大學 === 職業安全與衛生研究所 === 96 === Different common fuels were tested to compare their stabilities, heat release rates, water cooling effects, and pan edge effects. The heat release rates of heptane and hexane are more stable than gasoline by 1 ft and 2 ft pan fires, but the heat release rates of these fuels are all unstable in 3 ft pan fires. The constant of Alpert correlation underestimates the gas temperature when the ceiling height is from 2.8 meters to 3.6 meters and the HRR is between 90 kW and 1300 kW with an unconfined ceiling. The constant will be modified from 5.38 to 8.45. The gas temperature is higher in an FDS simulation than in a real fire test. A better FDS simulation result can be obtained if its heat release rate is 80% of the actual fire test. In room fire tests, the sprinkler actuation time is different due to different building structures. It should be noticed when a different sprinkler head is decided to use in a specific design, a time square fire simulator is developed to simulate fast and medium growth rate fire with a good simulation result.