基于流态的螺旋管内两相流及摩擦压降预测模型研究

IF 5.1 3区 工程技术 Q2 ENERGY & FUELS Thermal Science and Engineering Progress Pub Date : 2024-11-19 DOI:10.1016/j.tsep.2024.103018
Zhongyun Tian , Wenke Zheng , Xueying Sun , Lei Wang , Yiqiang Jiang , Xiaoguang Mi
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引用次数: 0

摘要

天然气作为最清洁的化石燃料,是通向可再生能源系统的桥梁,受到了人们的强烈关注。液化天然气的生产仍面临一些挑战。本文通过实验研究了天然气液化过程中碳氢化合物混合流体的冷凝摩擦压降。分析了蒸汽质量、质量通量和操作压力等因素的影响,利用可视化系统观察了螺旋管中的流动状态,将冷凝流动模式分为四种类型,并得出了换算标准。随后,比较了 11 种经典摩擦压降预测模型的准确性,并结合基于流态的模式和一般模式,建立了适合烃类混合物流体的摩擦压降全局模型。在基于流态的模式和一般模式下,全局模型的平均绝对相对偏差分别为 12.5 % 和 17.3 %。与实验数据和发表的论文数据相比,超过 80% 的数据点误差在 20% 以内。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Research on prediction model of two-phase flow and friction pressure drop in spiral pipe based on flow regimes
Natural gas, the cleanest fossil fuel, is a bridge to renewable energy systems and has received strong attention. There are still some challenges in the production of liquefied natural gas. This article experimentally investigates the condensation friction pressure drop of hydrocarbon mixture fluids during the liquefaction process of natural gas. Analyzed the effects of factors such as vapor quality, mass flux, and operating pressure, observed the flow regimes in the spiral pipe using a visualization system, divided the condensation flow patterns into four types, and obtained conversion criteria. Subsequently, the accuracy of eleven classic prediction models of friction pressure drop was compared, and a global model of friction pressure drop suitable for hydrocarbon mixture fluids was developed, incorporating flow regime-based mode and general mode. The global model had a mean absolute relative deviation of 12.5 % and 17.3 % under flow regime-based mode and general mode, respectively. Compared with the experimental and published paper data, it was verified that over 80 % of the data points had errors within 20 %.
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来源期刊
Thermal Science and Engineering Progress
Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
7.20
自引率
10.40%
发文量
327
审稿时长
41 days
期刊介绍: Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.
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