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Sökning: WFRF:(Westlund Örjan)

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  • Arvidson, Magnus, et al. (författare)
  • The Development of Automatic Sprinkler System Concepts for Maritime Vehicle Carriers
  • 2024
  • Ingår i: Fire technology. - : Springer. - 0015-2684 .- 1572-8099.
  • Tidskriftsartikel (refereegranskat)abstract
    • Closed ro-ro spaces on maritime vehicle carriers are usually protected by a total-flooding carbon dioxide system. Such systems have many benefits, for example that there are no residues that can adversely affect the protected objects (in this case thousands of vehicles) and the agent is electrically non-conductive. However, there could be a considerable time delay from the start of a fire until the carbon dioxide system is discharged. Experience has shown that this delay time can cause significant fire damage and jeopardize the performance of the system. Within the EU funded LASH FIRE project, design and installation guidelines for supplementary automatic water-based fire sprinkler systems were developed. An important design feature is that the system automatically activates at an early stage of a fire. This would allow more time to fight the fire manually or to safely evacuate the space and discharge the CO2 system when the fire is controlled to one or a few vehicles instead of at a time when it has escalated in size. The work was partly based on a comprehensive literature review that identified relevant standards and information applicable to the design of automatic fire sprinkler and deluge water spray systems. Large-scale fire tests verified that the suggested system designs were able to provide control of realistic vehicle fires, including fires in passenger cars and a freight truck.
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  • Arvidson, Magnus, et al. (författare)
  • Water Spray Fire Suppression Tests Comparing Gasoline-Fuelled and Battery Electric Vehicles
  • 2023
  • Ingår i: Fire technology. - : Springer Nature. - 0015-2684 .- 1572-8099. ; 59, s. 3391-
  • Tidskriftsartikel (refereegranskat)abstract
    • The increased use of electric vehicles has raised a concern about the performance efficiency of water spray fire suppression systems (often denoted “drencher systems”) typically installed on ro–ro cargo and ro–ro passenger ships. A test series was conducted involving testing of two pairs of geometrically similar gasoline-fuelled and battery electric vehicles in test conditions as equivalent as possible. During testing, key parameters such as the heat release rate, the gas temperature above the vehicle and the surface temperature of target steel sheet screens at the sides of the vehicle were measured. Fire ignition was arranged in such a way that the gasoline fuel or the battery pack was involved at the initial stage of the fire. It is concluded that fires in the two types of vehicles are different but have similarities. However, a fire in a battery electric vehicle does not seem to be more challenging than a fire in a gasoline-fuelled vehicle for a drencher system designed in accordance with current international recommendations
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  • Resultat 1-4 av 4

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