Fire tests with a line type heat detection system in the Runehamar tunnel

A series of full scale fire detection tests was carried out in the Runehamar tunnel, to investigate the performance of a line type heat detection system based on Fiber Bragg Grating (FBG) temperature sensing. A total of 30 tests were conducted, including 20 tests with a gas burner and 10 tests with liquid pools as the fire source. Different fire scenarios and tunnel velocities were tested with and without a cover surrounding the fire source. In the tests with the gas burner, various t-squared fire curves were tested. The results are analysed and presented with the focuses on the predictions of FBG temperature and rate of temperature rise, the minimum heat release rate and minimum fire growth rate for fire detection, and the estimation of exact fire location based on measurements of the line type heat detection system.

Language

  • English

Media Info

  • Pagination: pp 537-552
  • Monograph Title: Proceedings from the Ninth International Symposium on Tunnel Safety and Security, Munich, Germany, March 11-13, 2020

Subject/Index Terms

Filing Info

  • Accession Number: 01845965
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • ISBN: 9789189049895
  • Files: ITRD, VTI
  • Created Date: May 20 2022 2:06PM