The Experts below are selected from a list of 147504 Experts worldwide ranked by ideXlab platform
Lu-sheng Zhai - One of the best experts on this subject based on the ideXlab platform.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
Yiyu Zhou - One of the best experts on this subject based on the ideXlab platform.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
Xinghe Liang - One of the best experts on this subject based on the ideXlab platform.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
Dayang Wang - One of the best experts on this subject based on the ideXlab platform.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
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fLow measurement of oil water two phase fLow at Low fLow Rate using the plug in conductance sensor array
Sensors, 2019Co-Authors: Yiyu Zhou, Xinghe Liang, Dayang Wang, Lu-sheng ZhaiAbstract:In order to improve the fLow measurement accuracy of oil-water two-phase fLow at Low fLow Rate, this paper presents a plug-in conductance sensor array (PICSA) for the measurement of water holdup and cross-correlation velocity. Due to the existence of the insert body in PICSA, the effect of slippage and the non-uniform distribution of dispersed phase on the measurement of oil-water two-phase fLow at Low fLow Rate can be reduced. The finite element method is used to analyze the electric field distribution characteristics of the plug-in conductance sensor, and the sensor geometry is optimized. The dynamic experiment of oil-water two-phase fLow is carried out where water cut Kw and mixture velocity Um are set in the range of 10–98% and 0.0184–0.2580 m/s respectively. Experimental results show that the PICSA has good resolution in water holdup measurement for dispersed oil-in-water slug fLow (D OS/W), transition fLow (TF), dispersed oil-in-water bubble fLow (D O/W) and very fine dispersed oil-in-water bubble fLow (VFD O/W). In addition, the cross-correlation velocity of the oil-water two-phase fLow is obtained by using the plug-in upstream and downstream conductance sensor arrays. The relationship between the cross-correlation velocity and mixture velocity is found to be sensitive to the change of fLow pattern, but it has a good linear relationship under the same fLow pattern. Based on the fLow pattern identification, a good prediction result of the mixture velocity is obtained using kinematic wave theory. Finally, a high precision prediction of the individual phase volume fraction of oil-water two-phase fLow at Low fLow Rate is achieved by using the drift flux model.
Marco Aurelio Zezzi Arruda - One of the best experts on this subject based on the ideXlab platform.
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description of the thermospray formed at Low fLow Rate in thermospray flame furnace atomic absorption spectrometry based on high speed images
Analytical Chemistry, 2007Co-Authors: Marcel Luis Brancalion, Edvaldo Sabadini, Marco Aurelio Zezzi ArrudaAbstract:The mechanism of the thermospray formed at Low fLow Rates using a peristaltic pump in thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) is described here for the first time. The study was based on magnified images of the thermospray formed inside the hot tube furnace by using a high-speed CMOS camera. For this purpose different image acquisition speeds were used (from 1000 to 18000 frames/s), revealing that the thermospray obtained under such conditions is quite different from those already reported. The frames of the thermospray evolution indicate that the Leindenfrost effect plays an important role and alLow us to propose a mechanism for its formation. The analysis of the images contributed to calculation of parameters related to thermospray formation, such as pulse incidence average (110 ± 10, 320 ± 50, and 1200 ± 150 pulses per second) and pulse speed (6 ± 1, 10 ± 1, and 14 ± 2 m s-1) for 0.1, 0.4, and 1.0 mL min-1 fLow Rate, respectively, for both parameters. Additionally, the evap...
