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A Versatile Approach to Explosion Vent Design

机译:通用的防爆口设计方法

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Calculations for explosion venting in flammable vapor systems are often done using established methods documented in NFPA 68. It is understood that these equations may under predict vent area where enclosures are congested or the environment in the enclosure is initially turbulent. For new designs, it is helpful for design teams to have the flexibility to choose from a number of potential venting configurations. This paper reviews a methodology that was developed and implemented for several projects where computational fluid dynamics was used to evaluate enclosure design parameters for a range of vent configurations. The results of the modeling simulations were then fit to a lumped parameter model for deflagration venting developed in part by Vladimir Molkov. The end result is an equation that can be used by the design team as needed to finalize the design minimizing the use of computer modeling resources.
机译:通常使用NFPA 68中记录的既定方法对易燃气体系统中的爆炸进行计算。可以理解,这些方程可能是在预测的通风区域(外壳密闭或外壳环境最初处于湍流状态)下。对于新设计,设计团队可以灵活地从多种潜在的排气配置中进行选择,这对您很有帮助。本文回顾了为几个项目开发和实施的方法,在这些项目中,使用计算流体动力学来评估一系列通风口配置的外壳设计参数。建模仿真的结果随后适合由弗拉基米尔·莫尔科夫(Vladimir Molkov)部分开发的用于爆燃排放的集总参数模型。最终结果是一个方程,设计团队可以根据需要使用该方程来完成设计,从而最大程度地减少计算机建模资源的使用。

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