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Risk-Based Design Margin Selection for Heat Exchangers

机译：基于风险的换热器设计余量选择

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摘要

For more than a quarter century, business and industry have used risk-based matrices to quantify probability and conse-quences in decision making. However, this tool has not yet been applied to the heat exchanger design process. Adding a design margin to the calculated size of an exchanger is common practice. This margin represents the added heat exchanger area necessary to provide confidence that the exchanger will operate as required throughout its run cycle. An assumption is made that the additional area will not have a deleterious impact on performance. This report introduces the concept of a risk-based design margin selection process as a quantitative aid in separating the individual components that comprise the uncertainty in heat exchanger design. In addition, it provides a technique to help the designer determine a reasonable, cost-effective margin to apply to the heat exchanger. Two example cases show the application of the procedure.
机译：四分之一世纪以来，工商业使用基于风险的矩阵来量化决策中的概率和结果。但是，该工具尚未应用于热交换器的设计过程。在设计的交换器尺寸上增加设计裕度是常见的做法。该裕度表示为确保交换器将在整个运行周期内按要求运行所必需的增加的热交换器面积。假定附加区域不会对性能产生有害影响。本报告介绍了基于风险的设计余量选择过程的概念，作为定量帮助分离构成热交换器设计不确定性的各个组成部分的概念。此外，它提供了一种技术，可帮助设计人员确定要应用于热交换器的合理，具有成本效益的裕度。两个示例情况说明了该过程的应用。

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  • 来源
    《Heat Transfer Engineering》 |2011年第4期|p.307-313|共7页
  • 作者

    RICHARD L. SHILLING; MATTHEW P. RUDY; THOMAS M. RUDY;

  • 作者单位

    Heat Transfer Research, Inc., College Station, Texas, USA;

    ToMaRu Consulting, Warrenton, Virginia, USA;

    ToMaRu Consulting, Warrenton, Virginia, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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