Analysis of Flow and Pressure Drop on Tube Side of Spiral Tube Heat Exchanger under Sloshing Conditions

被引：1

作者：

Li, Fengzhi ^{[1
]}

Tian, Zhongyun ^{[1
]}

Jiang, Yiqiang ^{[1
]}

Zheng, Wenke ^{[1
]}

Chen, Jie ^{[2
]}

Li, Shulei ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Architecture, Key Lab Cold Reg Urban & Rural Human Settlement En, Minist Ind & Informat Technol, Harbin 150000, Peoples R China

[2] China Natl Offshore Oil Corp Gas & Power Grp, Beijing 100028, Peoples R China

[3] Northwestern Polytech Univ, Sch Marine Sci & Technol, Box 24, Xian 710072, Peoples R China

来源：

ENERGIES | 2023年 / 16卷 / 14期

基金：

中国国家自然科学基金;

关键词：

condensation; flow pattern; frictional pressure drop; sloshing factor; WATER 2-PHASE FLOW; SINGLE-PHASE FLOW; CONVECTIVE CONDENSATION; TRANSITION; PATTERNS; REGIMES; SYSTEM;

D O I：

10.3390/en16145263

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The utilization of the spiral tube heat exchanger (SHE) has become increasingly prevalent in large-scale liquefaction processes. However, the flow pattern and frictional pressure drop of two-phase flow in the spiral tube have been scarcely studied, particularly under offshore sloshing conditions. An experimental system had been developed to explore the flow pattern and frictional pressure drop characteristics of mixed hydrocarbon fluid in a spiral tube. Moreover, these have been developed in order to examine the effects of sloshing style (roll, pitch, heave), sloshing period (5-15 s), sloshing amplitude (5-15 & DEG; or 50-150 mm), mass flux (200-800 kg/(m(2)& BULL;s)), vapor quality (0-1), and saturation pressure (2-4 MPa) on the frictional pressure drop of methane/ethane mixture in the spiral tube. The results indicated that sloshing conditions reduce the frictional pressure drop, thereby enhancing fluid flow. A correlation was established to predict the sloshing factor of frictional pressure drop, and the MARD under verification conditions was 6.04%. Furthermore, three flow pattern boundaries were proposed based on We* as an indicator.

引用

页数：16