首页> 外文OA文献 >Sensor and model integration for the rapid prediction of concurrent flow flame spread
【2h】

Sensor and model integration for the rapid prediction of concurrent flow flame spread

机译:传感器和模型集成,可快速预测并发火焰传播

摘要

Fire Safety Engineering is required at every stage in the life cycle of modern-day buildings. Fire safety design, detection and suppression, and emergency response are all vital components of Structural Fire Safety but are usually perceived as independent issues. Sensor deployment and exploitation is now common place in modern buildings for means such as temperature, air quality and security management. Despite the potential wealth of information these sensors could afford fire fighters, the design of sensor networks within buildings is entirely detached from procedures associated to emergency management. The experiences of Dalmarnock Fire Test Two showed that streams of raw data emerging from sensors lead to a rapid information overload and do little to improve the understanding of the complex phenomenon and likely future events during a real fire. Despite current sensor technology in other fields being far more advanced than that of fire, there is no justification for more complex and expensive sensors in this context. In isolation therefore, sensors are not sufficient to aid emergency response.udFire modelling follows a similar path. Two studies of Dalmarnock Fire Test One demonstrate clearly the current state of the art of fire modelling. A Priori studies by Rein et al. 2009 showed that blind prediction of the evolution of a compartment fire is currently beyond the state of the art of fire modelling practice. A Posteriori studies by Jahn et al. 2007 demonstrated that even with the provision of large quantities of sensor data, video footage, and prior knowledge of the fire; producing a CFD reconstruction was an incredibly difficult, laborious, intuitive and repetitive task.udFire fighting is therefore left as an isolated activity that does not benefit from sensor data or the potential of modelling the event. In isolation sensors and fire modelling are found lacking. Together though they appear to form the perfect compliment. Sensors provide a plethora of information which lacks interpretation. Models provide a method of interpretation but lack the necessary information to make this output robust. Thus a mechanism to achieve accurate, timely predictions by means of theoretical models steered by continuous calibration against sensor measurements is proposed.
机译:在现代建筑生命周期的每个阶段都需要消防安全工程。消防安全设计,检测和抑制以及紧急响应都是结构消防安全的重要组成部分,但通常被视为独立问题。如今,在诸如温度,空气质量和安全管理之类的手段中,传感器的部署和开发已在现代建筑中很普遍。尽管这些传感器可以为消防员提供潜在的大量信息,但建筑物内传感器网络的设计与应急管理相关的程序完全分开。达拉玛诺克第二次火灾测试的经验表明,传感器发出的原始数据流会导致信息快速过载,并且对增进人们对真实火灾中的复杂现象和未来可能发生的事件的理解没有多大作用。尽管在其他领域,当前的传感器技术远比火灾技术先进,但在这种情况下,没有理由要求使用更复杂,更昂贵的传感器。因此,仅凭传感器,不足以帮助紧急响应。 udFire建模遵循类似的路径。达拉玛诺克火灾测试的两项研究之一清楚地证明了火灾建模的最新状态。 Rein等人的先验研究。 2009年表明,对舱室火灾演变的盲目预测目前超出了火灾建模实践的水平。 Jahn等人的后验研究。 2007年证明,即使提供了大量的传感器数据,视频镜头和火灾的先验知识,该技术仍能有效应对火灾。进行CFD重建是一项极其艰巨,费力,直观和重复的任务。因此,消防是一项孤立的活动,无法从传感器数据或事件建模的潜力中受益。在隔离中,发现缺乏传感器和火模型。尽管它们在一起似乎形成了完美的称赞。传感器提供了大量信息,缺乏解释。模型提供了一种解释方法,但是缺少使该输出稳定的必要信息。因此,提出了一种通过对传感器测量值进行连续校准指导的理论模型来实现准确,及时的预测的机制。

著录项

  • 作者

    Cowlard Adam;

  • 作者单位
  • 年度 2009
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号