Abstract
Oil-insulated transformer is the main source of power substation fire. It is important therefore to investigate the fire suppression of transformer oil pool fires. Experiments were conducted in a 3 × 3 × 3 m room to study the transformer oil pool fire suppression by water mist. The square pool fire with dimensions of 17, 25, and 30 cm and a downward-directed single-injector nozzle with operating pressures of 1.0, 2.5, and 4 MPa were considered in the experiments. The flame shape during water mist application was recorded by a video camera. The temperature, CO concentration, and flame thermal radiation were measured to evaluate the fire suppression process by water mist. The results show that the flame would be intensified due to the injection of water mist at the initial period, and the intensification phenomenon is related to the fire size and the injection pressure of water mist system. The flame intensification occurred obviously under low injection pressure and large-size fire conditions. In addition, the fire extinguishment time increases with the decrease of the injection pressure and the increase of pool size. The results of this work would be valuable for optimizing the water mist system in the application of transformer substation fire suppression.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Petersen A, Blanc R, Carrander K et al (2012) Guide for transformer fire safety practices, Working Group A2.33
Duarte D (2012) Aspects of transformer fires in Brazil. Open J Saf Sci Technol 2:63–74
Gupta M, Pasi A, Ray A, Kale SR (2013) An experimental study of the effects of water mist characteristics on pool fire suppression. Exp Thermal Fluid Sci 44:768–778
Huang X, Wang XS, Liao GX (2011) Characterization of an effervescent atomization water mist nozzle and its fire suppression tests. Proc Combust Inst 33:2573–2579
Husted BP, Petersson P, Lund I, Holmstedt G (2009) Comparison of PIV and PDA droplet velocity measurement techniques on two high-pressure water mist nozzles. Fire Saf J 44:1030–1045
Mawhinney JR, Richardson JK (1997) A review of water mist fire suppression research and development. Fire Technol 1:54–90
Wang XS, Liao GX, Yao B, Fan WC, Wu XP (2001) Preliminary study on the interaction of water mist with pool fires. J Fire Sci 19:45–61
Wang XS, Zhao XD, Zhang Y, Cai X, Gu R, Xu HL, Liao GX (2009) Experimental study on the interaction of a water drop impacting on hot liquid surfaces. J Fire Sci 27:545–559
Bureau, Hydroelectric Research and Technical Services Group (2005) FIST 3-32, Transformer fire protection
Grant G, Brenton J, Drysdale D (2000) Fire suppression by water sprays. Fire Saf J 26:79–130
Liu Z, Kim AK (2000) Review of water mist fire suppression systems—fundamental studies. J Fire Prot Eng 10:32–50
Mawhinney JR, Back GG (2002) Water mist fire suppression systems. In: SFPE Handbook of fire protection engineering, pp 4.311–4.337
Wang XS, Liao GX, Qin J, Fan WC (2002) Experimental study on the effectiveness of the extinction of a pool fire with water mist. J Fire Sci 20:279–295
Ho San-Ping (2003). Water spray suppression and intensification of high flash point hydrocarbon pool fires, doctoral thesis. Worcester Polytechnic Institute
Cong BH, Liao GX, Huang Z (2009) Extinction limit of diesel pool fires suppressed by water mist. J Fire Sci 27:5–26
Acknowledgment
The authors appreciate the Natural Science Foundation of China (Grant No. 51323010), the Fundamental Research Funds for the Central Universities (WK23200000035), and the Anhui Provincial Natural Science Foundation (Grant No. 1408085MKL95).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer Science+Business Media Singapore
About this paper
Cite this paper
Zhu, P., Wang, X., Wang, Z., Cong, H., Ni, X. (2017). Experimental Study on Transformer Oil Pool Fire Suppression by Water Mist. In: Harada, K., Matsuyama, K., Himoto, K., Nakamura, Y., Wakatsuki, K. (eds) Fire Science and Technology 2015. Springer, Singapore. https://doi.org/10.1007/978-981-10-0376-9_92
Download citation
DOI: https://doi.org/10.1007/978-981-10-0376-9_92
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-0375-2
Online ISBN: 978-981-10-0376-9
eBook Packages: EngineeringEngineering (R0)