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A parametric study on the use of passive fire protection in FPSO topside module

  • Friebe, Martin (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Jang, Beom-Seon (Research Institute of Marine Systems Engineering, Dept. of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Jim, Yanlin (Department of Naval Architecture and Ocean Engineering, Seoul National University)
  • Published : 2014.12.31

Abstract

Fire is a continuous threat to FPSO topside modules as large amounts of oil and gas are passing through the modules. As a conventional measure to mitigate structural failure under fire, passive fire protection (PFP) coatings are widely used on main structural members. However, an excessive use of PFP coatings can cause considerable cost for material purchase, installation, inspection and maintenance. Long installation time can be a risk since the work should be done nearly at the last fabrication stage. Thus, the minimal use of PFP can be beneficial to the reduction of construction cost and the avoidance of schedule delay. This paper presents a few case studies on how different applications of PFP have influence on collapse time of a FPSO module structure. A series of heat analysis and thermal elasto-plastic FE analysis are performed for different PFP coatings and the resultant collapse time and the amount of PFP coatings are compared with each other.

Keywords

Acknowledgement

Grant : QRA based design verification Technology for Highly Hazard Accidents of Offshore Installations

Supported by : KEIT

References

  1. Amdahl, J., Holmas, T. and Skallerud, B., 2003. Ultimate strength members of members with attachments during accidenttal fires. International Conference Response of Structures to Extreme Loading, Toronto, Canada, 3-6 August 2003.
  2. Andersen, C. and Lindholm, C., 2008. Risk reduction by use of passive fire protection - A study regarding implementation of new installations offshore. Mater Thesis. Department of Fire Safety Engineering and Systems Safety, Lund University, Sweden.
  3. BSI, 2005. Eurocode 3: Design of steel structures, Part 1-2: General rules - Structural fire design. London: British Standards.
  4. FABIG, 2010. Technical note 11 : fire loading and structural response. UK: The Steel Construction Institute.
  5. Jin, Y. and Jang, B.S., 2013. A study on probabilistic scenario based fire risk analysis for FPSO structure. Proceedings of the 27th Asian-Pacific Technincal Exchange and Advisory Meeting on Marine Structures, TEAM 2013, Keelung, Taiwan, 9-12 August 2013.
  6. Johnson, A.D., Shirvill, L.C. and Ungut, A., 1999. CFD calculation of impinging gas jet flame, Offshore technology report, OTO 1999/ 011. UK: HSE.
  7. Kinsella, E., 2011. Tools for thermal analysis of intumescent materials. Master Thesis. The University of Edinburgh.
  8. Krohn, A.B.A., 2009. Measurement of conductivity of intumescing material. Master Thesis. University of Bergen.
  9. NORSOK, 2000. Technical Safety S-001. Oslo, Norway: Norwegian Technology Standards Institution.
  10. Opstad, K., 2010. Thermal properties of passive fire protection material, proposal of test method, Report No.10-51575-RP- 001-V01. Norway: Petrell AS.
  11. Shettya, N.K., Soares, C.G., Thoft-Christensenc, P. and Jensen, F.M., 1998. Fire safety assessment and optimal design of passive fire protection for offshore structures. Reliability Engineering & System Safety, 61(1-2), pp.439-149.
  12. Shirvill, L.C., 1992. Performance of passive fire protection in jet fires, major hazards onshore and offshore. Institution of Chemical Engineers Symposium Series, Norway, 20-23 October 1992.
  13. USFOS, 2011a. FAHTS user's manual. Norway: USFOS A/S.
  14. USFOS, 2011b. USFOS user's manual. Norway: USFOS A/S.