Topic
Fire sprinkler
About: Fire sprinkler is a research topic. Over the lifetime, 384 publications have been published within this topic receiving 2209 citations.
Papers published on a yearly basis
Papers
Patent•
15 May 1986
TL;DR: An alignment bracket assembly for holding and aligning a fire sprinkler supply pipe in a horizontal or vertical orientation relative to a pair of spaced apart building members such as joists, studs or T-bar suspended ceiling frame supports is described in this article.
Abstract: An alignment bracket assembly for holding and aligning a fire sprinkler supply pipe in a horizontal or vertical orientation relative to a pair of spaced apart building members such as joists, studs or T-bar suspended ceiling frame supports comprises a central member of non-circular cross-section, preferably square, and a pair of end members in telescoping sliding engagement at opposite ends of the central member. The end members each have attachment devices at their free ends for securing them to respective spaced building members. A pipe holding bracket is slidably mounted on the central member and has a pair of arms projecting from the central member for engaging opposite faces of the fire sprinkler pipe between them. The arms can be urged towards one another to grip the fire sprinkler pipe to maintain it in a vertical or horizontal orientation and reduce the risk of displacement or misalignment of the fire sprinkler head during ceiling installation.
64 citations
TL;DR: In this article, an analytical modeling methodology for fire sprinkler piping systems was developed and used to generate seismic fragility parameters of these systems, and the analytical model was used to evaluate the performance of the system.
Abstract: For the first time, an analytical modeling methodology is developed for fire sprinkler piping systems and used to generate seismic fragility parameters of these systems. The analytical model accoun...
64 citations
TL;DR: In this paper, the spray patterns of a pendent fire sprinkler were characterized through experimental measurements in the near and far field of the sprinkler by using a laser-based shadow-imaging system to measure the droplet size, velocity and number density in the spray.
57 citations
TL;DR: In this article, the critical fire suppression mechanisms of water mist systems and conventional fire sprinklers are investigated and compared, with emphasis on the influence of water droplet sizes on the fire suppression mechanism.
Abstract: With recent developments in the design and manufacturing process of water-based fire suppression systems , more advanced technologies such as water mist systems have expanded in their building application. In this article, the critical fire suppression mechanisms of water mist systems and conventional fire sprinklers are investigated and compared, with emphasis on the influence of water droplet sizes on the fire suppression mechanisms. Applying computational fluid dynamics (CFD), a fully ventilated fire compartment room has been considered where a methane pool fire was placed at the centre. The considered fire suppression systems were placed directly upon the fire. Thermocouple and gas probes were applied in the computational domain to identify different stages of the fire suppression process, as well as to evaluate the suppression performance. The velocity field was analyzed to examine the penetration effect of suppression systems. Relative humidity and oxygen concentration data obtained by gas analyzers were also studied to further understand the droplet/fire interaction behavior. It was found that latent cooling, volumetric displacement, and dilution of oxygen and fuel were the main suppression mechanisms for water mist systems, as smaller droplets evaporate more efficiently compared to larger ones. On the other hand, for sprinklers, heat extraction by water droplets from the fire was found to be the main suppression mechanism, and the evaporation effect is not as significant as in water mist systems. According to in-depth parametric studies of water droplet sizes, recommendations for the optimal running conditions have been provided for both systems.
41 citations
TL;DR: In this article, the authors considered the mathematical modelling of compartment fires and the interaction with an activated sprinkler system, and various fire and fire sprinkler models were discussed, including the Lagrange particle tracking method and the volume fraction method.
37 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 8 |
| 2020 | 20 |
| 2019 | 26 |
| 2018 | 27 |
| 2017 | 20 |
| 2016 | 28 |