A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fire hazards at power generation facilities
Power generation plants present several challenging hazards. Some are well understood (e.g., rotating equipment) while others remain poorly defined or understood (e.g., lubricating oil systems, control oil systems, and hydraulic oil systems). In an effort to better define the hazards created by pumped oil systems for our clients and to help us develop better protection options, FM Global initiated a research project to investigate oil fire hazards expected at a power generation plant without an operating floor. The objectives of the project were to 1) provide detailed visual documentation of the potential fire scenarios associated with turbine halls within power generation facilities without an operating floor and 2) examine new and existing protection schemes to mitigate losses due to fires. A final project was aimed at defining a functional spray shield that could be used to mitigate spray fires at flanges. This full-scale test series provided a clear confirmation of the severity of oil spray and three-dimensional spill fires and the challenge of providing effective fixed protection for the tested scenarios. In addition, the testing also demonstrated: 1. The best protection is to shut off the flow of oil! 2. Pool fires can be extinguished. 3. Extinguishment is affected by: Ceiling height, type of system, water density, a deluge system is more effective than closed sprinklers, inadequate amounts of water may change the dynamics of a fire and produce larger event. 4. Closed sprinklers or heat detectors will not activate under grated walkways or without the presence of a ceiling unless they are in the fire plume. 5 Ceiling sprinkler protection can not extinguish a spray or 3-D spill fire. 6 Local sprinkler protection can not extinguish a spray or 3-D spill fire. 7. A properly designed local sprinkler system will control the exposure created by a spray or 3-D spill fire until the flow of oil is terminated. Close spaced sprinklers are needed to impact spray fire intensity. 8. Currently available spray shields may not remove the momentum of a spray leak; instead they may redirect the spray. 9. To determine the effectiveness of a spray shield, it needs to be tested against the conditions it will need to perform under.
Fire hazards at power generation facilities
Power generation plants present several challenging hazards. Some are well understood (e.g., rotating equipment) while others remain poorly defined or understood (e.g., lubricating oil systems, control oil systems, and hydraulic oil systems). In an effort to better define the hazards created by pumped oil systems for our clients and to help us develop better protection options, FM Global initiated a research project to investigate oil fire hazards expected at a power generation plant without an operating floor. The objectives of the project were to 1) provide detailed visual documentation of the potential fire scenarios associated with turbine halls within power generation facilities without an operating floor and 2) examine new and existing protection schemes to mitigate losses due to fires. A final project was aimed at defining a functional spray shield that could be used to mitigate spray fires at flanges. This full-scale test series provided a clear confirmation of the severity of oil spray and three-dimensional spill fires and the challenge of providing effective fixed protection for the tested scenarios. In addition, the testing also demonstrated: 1. The best protection is to shut off the flow of oil! 2. Pool fires can be extinguished. 3. Extinguishment is affected by: Ceiling height, type of system, water density, a deluge system is more effective than closed sprinklers, inadequate amounts of water may change the dynamics of a fire and produce larger event. 4. Closed sprinklers or heat detectors will not activate under grated walkways or without the presence of a ceiling unless they are in the fire plume. 5 Ceiling sprinkler protection can not extinguish a spray or 3-D spill fire. 6 Local sprinkler protection can not extinguish a spray or 3-D spill fire. 7. A properly designed local sprinkler system will control the exposure created by a spray or 3-D spill fire until the flow of oil is terminated. Close spaced sprinklers are needed to impact spray fire intensity. 8. Currently available spray shields may not remove the momentum of a spray leak; instead they may redirect the spray. 9. To determine the effectiveness of a spray shield, it needs to be tested against the conditions it will need to perform under.
Fire hazards at power generation facilities
Brandrisiken in einem Kraftwerk
LeBlanc, John A. (author) / Wieczorek, Christopher J. (author)
2007
12 Seiten, 4 Bilder, 2 Tabellen
Conference paper
Storage medium
English
Energieerzeugung , Risiko , Pumpen , Öl , Nebel , Feuerlöschen , Wasser , Sprinkleranlage , Brand (Feuer) , Kraftwerk
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