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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >A unified thermodynamic framework for LNG rapid phase transition on water
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A unified thermodynamic framework for LNG rapid phase transition on water

机译：一个统一的液化天然气快速的热力学框架相变对水

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摘要

Rapid phase transition (RPT) is a phenomenon which frequently occurs after an LNG release on water. Its effects are potentially hazardous mainly because of the very fast rate of high energy release, in addition to fire and explosion. A significant case history and various experimental campaigns provide evidence which has allowed assessing different aspects of this event. This paper aims at offering a unified thermodynamic analysis of RPT. The thermodynamic and the kinetic limits of liquid superheat have been fully reviewed and specifically applied to LNG, within the homogeneous nucleation theory for multi-component liquids. Thermal and thermo-mechanical interface properties, such as interface temperature, evaporation rate, surface properties and liquid fragmentation have also been investigated. The importance of LNG composition has been analysed with respect to the experimental data. Finally, on the basis of the well known Shepherd and Sturtevart test, bubble growth rate has been modelled according to Mikic, Rohsenow and Griffith (MRG) equation and a new rigorous method has been set up to predict RPT overpressure, in line with Lighthill's acoustic theory, which removes the existing uncertainty and some subjectivities of the available models and possibly increases the thermo-fluid dynamic understanding of the phenomenon. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：快速相变(RPT)是一个现象经常发生在液化天然气释放的水。它主要是有潜在危险的影响由于高能源的速度非常快释放,除了火和爆炸。重大案件的历史和各种实验允许活动提供证据评估这一事件的不同方面。本文旨在提供一个统一的热力学RPT的分析。动力学限制液体过热全面回顾和专门应用于液化天然气,在均匀成核理论多组分的液体。形变场界面属性,例如界面温度、蒸发率、表面属性和液体分裂也被调查。成分分析的实验数据。众所周知的牧羊人和Sturtevart测试,泡沫根据成员增长率模型,Rohsenow格里菲斯(著)方程和一个新的严格的方法建立了预测RPT超压,符合《声现有理论,它消除了不确定性和一些可用的推动模式并可能增加thermo-fluid动态对这种现象的理解。化学工程师学会。爱思唯尔帐面价值保留所有权利。

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