Influence of fire source locations on the actuation of wet-type sprinklers in an office fire

Chi-ming Lai, Hung Chi Su, Ming Ju Tsai, Chien Jung Chen, Chun Ta Tzeng, Ta-Hui Lin

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


An experiment is conducted on a full-scale model office and an actual sprinkler system to explore the influence of fire source locations on sprinkler actuation. The office space is a brick structure that measures 5.7 m in interior length, 4.7 m in width and 2.4 m in ceiling height, and equipped with a sprinkler system. The investigated fire source (100 kW LPG burner) locations include the room center, wall centers, room corner, and other locations at different distances from sprinklers. The results show that actuation of the sprinklers is affected by the fire source locations and the heat conduction properties of the glass temperature-sensing bulb. Average actuation time of all the tests is 102 s, around 40 s faster than if the fire source is located in the room center. For fire sources in corners, sprinklers are quickly activated at the experimental time 75 s, showing concentrated hot gas flow.

Original languageEnglish
Pages (from-to)107-114
Number of pages8
JournalBuilding and Environment
Issue number1
Publication statusPublished - 2010 Jan 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Environmental Engineering
  • Geography, Planning and Development
  • Building and Construction

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