在混合天然气输送管道中对度分布的模拟研究
Weiqing Xu1,2, Yongwei An3, Shuangjie Yan3
1School of Automation Science and Electrical Engineering, Beihang University, Beijing, China.
PloS one
|December 3, 2024
概括
引力导致天然气管道中的分布不均. 本研究使用CFD分析管道特征如波浪和球如何影响的度,为更安全的能源运输提供了见解.
科学领域:
- 能源科学 能源科学
- 化学工程是化学工程的重要组成部分.
- 流体动力学 流体动力学
背景情况:
- 与天然气混合是一种可行的清洁能源转型战略.
- 管道中的的重力诱导分层构成了分配挑战.
- 了解度梯度对于安全有效的运输至关重要.
研究的目的:
- 调查混合天然气管道中的度分布.
- 分析管道几何形状 (波纹,球) 和运行条件对分层的影响.
- 确定影响积的因素,并提出缓解策略.
主要方法:
- 使用了计算流体动力学 (CFD) 模拟.
- 在波浪和球管道的建造模型上进行了模拟.
- 调查的关键参数包括波浪角度,高度,管道直径,球开口,温度,压力和流量.
主要成果:
- 波浪式部分的管道直径较大,可以最大限度地减少的积累.
- 更高的波浪角度和更小的垂直高度差异降低了积累风险.
- 垂直高度差异的增加显著加剧了体积分数梯度.
- 球的打开影响了速度波动,但加剧了的积累,梯度增加了两倍以上.
- 最佳的交付条件包括低比率,高温,低压,高流量.
结论:
- 管道设计,特别是波纹和球配置,显著影响的分配.
- 操作条件在管理的分层和积累方面发挥着至关重要的作用.
- 这些发现为设计和运营天然气联合运输基础设施的安全和有效提供了必要的数据.
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