Results 221 to 230 of about 5,028,148 (268)

Effect of drag reducing polymers on water holdup in an oil–water horizontal flow

International Journal of Multiphase Flow, 2012
Abstract Water holdup measurements with conductivity probe were conducted in a 2.54-cm pipe of oil–water flow with and without Drag-Reducing Polymers (DRP) in a horizontal pipe. The water holdup was significantly influenced by the injection of DRP at same inlet flow rates. The water holdup of oil–water with DRP is larger than that without DRP for low
Mohammed Al-Yaari, Abdelsalam Al-Sarkhi
exaly   +2 more sources

Measurement of Pressure Drop and Water Holdup in Vertical Upward Oil-in-Water Emulsions

IEEE Sensors Journal, 2018
This paper aims to experimentally investigate pressure drop and water holdup in vertical upward oil-in-water emulsions. As a key factor to extract water holdup with differential pressure method, friction factor is complicatedly associated with the Reynolds number of mixed fluid.
Ningde Jin, He Yuansheng, Yunfeng Han
exaly   +2 more sources

A parallel-wire microwave resonant sensor for measurement of water holdup in high water-cut oil-in-water flows

Flow Measurement and Instrumentation, 2020
Abstract In the present study, we propose a parallel-wire microwave resonant sensor (PMRS) with transmission-through configuration for water holdup measurement in high water-cut oil-in-water flows. Through the finite element method (FEM) analysis using HFSS software, the variations of sensor responses for changing water holdup and salinity are ...
Ningde Jin, Dayang Wang, Yunfeng Han
exaly   +2 more sources

Characteristics of water holdup for oil and water mixture flows in horizontal, vertical, and inclined pipes

Canadian Journal of Chemical Engineering, 2016
AbstractIn this work, the water holdup and slippage for oil and water mixture flows in horizontal, vertical, and inclined pipes have been investigated. A large group of experimental data was collected from 21 different sources covering the whole range of inclination angles from −90° to 90° to reveal the holdup characteristics and develop the drift ...
Jing-yu Xu, Shuo Liu
exaly   +2 more sources

Measurement of water holdup in vertical upward high water-cut oil-in-water flows using a high frequency sensor

Sensors and Actuators A: Physical, 2019
Abstract In the present study, we propose a high frequency sensor (HFS) for water holdup measurement in high water-cut oil-in-water flow with low velocity. Through analyzing amplitude-frequency characteristics and phase-frequency characteristics of HFS in different working frequencies using the finite element method, the optimal working frequency of ...
Ningde Jin
exaly   +2 more sources

Measurement of Water Holdup in Oil-in-Water Flows Using Three-Channel Conductance Probe With Center Body

IEEE Sensors Journal, 2018
A three-channel conductance probe has been proposed to measure the water holdup in oil-in-water flows with low-flow rate and high-water cut. The probe consists of three pairs of arc shape electrodes with center body. The geometry of the electrodes in each channel has been optimized using the finite-element method.
Ningde Jin, Dayang Wang, Yunfeng Han
exaly   +2 more sources

Measurement of Water Holdup in Oil–Gas–Water Slug Flow Using Microstrip Antenna

IEEE Transactions on Instrumentation and Measurement, 2021
Water holdup measurement in multiphase flow with varying water salinity is a significant and challenging research topic. In this study, a new microstrip-antenna-based microwave transmission sensor (MAMTS) and a new decoupling method are proposed to achieve salinity independent measurement of water holdup in oil–gas–water slug flows. The MAMTS is formed
Dayang Wang, Ningde Jin, Jing Ma, Yingyu Ren   +3 more
openaire   +2 more sources

Water holdup measurement in kerosene–water two-phase flows

Measurement Science and Technology, 2007
This paper proposes an intrusive method for measurement of water holdup based on water layer thickness in horizontal pipes. Water layer thickness is measured by a capacitance probe, which is made of a metal wire with an insulating film. The capacitance is linearly proportional to the water layer thickness and is independent of water salinity and its ...
S-F Huang, X-G Zhang, D Wang, Z-H Lin
openaire   +1 more source

Simple microwave method for detecting water holdup [PDF]

Microwave and Optical Technology Letters, 2008
A microwave sensor is designed to measure the resonance behavior of the hydrocarbon mixture to determine the water holdup of a near horizontal oil carrying pipeline. This technique is particularly useful for detecting very small water holdup (
Sharif Sheikh
exaly   +1 more source

Gas Holdup in a Cocurrent Air-Water-Fiber Bubble Column

Volume 3, 2004
Effects of superficial liquid velocity (Ul), superficial gas velocity (Ug), and fiber mass fraction (C) on gas holdup (ε) and flow regime transition are studied experimentally in well-mixed water-cellulose fiber suspensions in a cocurrent bubble column.
Tang, Chengzhi, Heindel, Theodore
openaire   +2 more sources