基于结构特征的LNG低温软管内流场流动特性研究
On flow characteristics of LNG cryogenic hoses based on structural features
刘淼儿 1李方遒 1程昊 1李欣欣1
作者信息
- 1. 中海石油气电集团有限责任公司,北京 100028
- 折叠
摘要
低温软管在浮式液化天然气(LNG)传输系统中是必不可少的一部分,在浮式天然气液化装置(FLNG)和LNG运输船之间进行串靠卸料过程中起到了关键作用.针对低温软管内的波纹管内部流体流动特性进行理论分析和计算流体力学(CFD)数值模型建立,应用FLUENT针对不同工况条件及结构参数下的低温软管开展内流特性模拟计算.通过模拟计算得到一系列管内流动压降及换热系数的变化规律,从而推导低温软管流动换热理论模型,为更加准确、快速地进行工艺计算提供理论基础及参考修正系数.
Abstract
Cryogenic hoses are an essential part of floating LNG transfer systems and play a crucial role during the side-by-side offloading process between FLNG units and LNG carriers.With the ongoing development of offshore oil and gas fields moving into deeper waters,LNG cryogenic hoses have a significant and irreplaceable application prospect.This paper conducts a theoretical analysis and establishes a computational fluid dynamics(CFD)numerical model for the fluid flow characteristics inside the corrugated tubes of cryogenic hoses.Using FLUENT,simulations of internal flow characteristics under various operating conditions and structural parameters are performed for cryogenic hoses.The results provide a series of trends in terms of internal flow pressure drops and heat transfer coefficients,derivating a theoretical model for the flow and heat transfer in cryogenic hoses.This model provides a theoretical basis and correction factors for more accurate and efficient calculations.The findings of this work support the design of cryogenic hoses and lay a foundation for industrial production and domestic application of these hoses.
关键词
LNG低温软管/结构特征/流动特性/计算流体力学Key words
LNG cryogenic hose/structural features/flow characteristics/computational fluid dynamics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据