热力学性质对于准确预测管线运行至关重要

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几乎所有管输天然气中都含有少量重组分。正确描述重组分的参数能更准确地预测气体露点和液体形成 ,这对天然气管线运行至关重要。本文用Maddox和Lilly法计算其参数 ,并详细介绍了一种计算单气相和气液两相天然气管线中压降的算法。将这种算法用于实际的和假想的管线都得出令人满意的结果 ,该算法可预测天然气管线中单相和低含液量气液两相流的压降和流动条件 Almost all natural gas pipelines contain a small amount of heavy components. Correctly describing the parameters of heavy components can predict gas dew point and liquid formation more accurately, which is crucial for gas pipeline operation. In this paper, the parameters of Maddox and Lilly are calculated, and an algorithm to calculate the pressure drop in single-gas and gas-liquid two-phase natural gas pipeline is introduced in detail. The use of this algorithm for both actual and hypothetical pipelines yields satisfactory results that predict the pressure drop and flow conditions of single-phase and low-volume gas-liquid two-phase flow in natural gas pipelines
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