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首页> 外文会议>15th international conference amp; exhibition on liquefied natural gas (LNG 15): proceedings amp; committee reports >NEW SLOSHING ASSESSMENT METHODOLOGY FOR MEMBRANE TANKS IN LNG CARRIERS
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NEW SLOSHING ASSESSMENT METHODOLOGY FOR MEMBRANE TANKS IN LNG CARRIERS

机译：LNG运输车膜罐的晃动评估新方法

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This paper is for those who are at the leading edge of changes taking place in the delivery of LNG with membrane based insulation systems in LNG carriers. It addresses the relevance of technical developments that support industry's continued safe application of membrane systems and how these developments can help our industry face more demanding conditions associated with changes underway in LNG carrier designs and operations.rnTo meet the growing demand for LNG, industry is pursing development of very large LNG membrane ships to reduce the cost of delivery through economies of scale. Industry is also pursuing applications involving offshore cargo transfer operations with membrane carriers. With such changes and the potential for new sloshing load conditions, reliable sloshing assessment methods for LNG tanks are vital to achieving confidence in the integrity of membranes in these carriers.rnLeveraging the excellent performance history of LNG carriers, industry's approach to qualifying new membrane tanks has been to compare predicted sloshing loads for new larger ships to those of conventional ships. For cases where the differences are large or there is not an operating basis for comparison, a comparative approach can be onerous and may lead to design requirements that are potentially impractical and unnecessary for new LNG carrier cargo tanks. A more traditional engineering approach, one that compares load directly to capacity, avoids these shortcomings. ExxonMobil has developed such a methodology, referred to as EM~(PACT).rnThis paper provides an overview of our direct methodology (EM~(PACT)) for assessing the effect of sloshing on membrane integrity, along with the feasibility and incentives for the LNG industry to move toward the use of this approach for new membrane carriers and operations.
机译：本文适用于那些在以液化天然气运输船中的薄膜绝缘系统交付液化天然气方面处于变革前沿的人。它解决了支持行业继续安全应用膜系统的技术发展的相关性，以及这些发展如何帮助我们的行业面对与LNG运载工具设计和运营变化有关的更苛刻的条件。为了满足对LNG不断增长的需求，行业正在追求开发大型LNG膜船以降低规模经济的运输成本。工业界也正在寻求涉及使用膜载体的海上货物转移作业的应用程序。有了这样的变化以及潜在的新晃荡载荷条件，用于LNG储罐的可靠晃荡评估方法对于使人们对这些运输船中的膜的完整性具有信心至关重要。rn利用LNG船出色的性能历史，行业鉴定新膜储罐的方法具有用来比较新的大型船舶与常规船舶的预计晃荡载荷。对于差异较大或没有可比较的操作依据的情况，比较方法可能会很麻烦，并且可能导致设计要求，对于新的LNG液货船，这些要求可能是不切实际且不必要的。一种更传统的工程方法，即直接将负载与容量进行比较，可以避免这些缺点。埃克森美孚（ExxonMobil）已开发出一种称为EM〜（PACT）的方法。本文概述了我们的直接方法（EM〜（PACT）），用于评估晃荡对膜完整性的影响，以及对这种方法的可行性和激励措施。 LNG行业正朝着将这种方法用于新的膜载体和运营的方向发展。

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