The Experts below are selected from a list of 33456 Experts worldwide ranked by ideXlab platform
Tianxi Che - One of the best experts on this subject based on the ideXlab platform.
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a new dry tray Pressure Drop Model of float valve trays
Aiche Journal, 2013Co-Authors: Ju Wang, Yixua Tang, Yansheng Liu, Rui Cao, Tianxi CheAbstract:An accurate prediction of the dry Pressure Drop is very important for consideration of valve trays and for calculations in distillation field. Therefore, in this article, a series of hydraulic experiments were first conducted to reveal that the intermediate state during the valve opening process is closely related to the dry tray Pressure Drop under great valve weight. Then, a rigorous force analysis was made to show that Euler number is related only to the valve's position at the balance points for a certain valve type. Third, a new Model for prediction of the dry tray Pressure Drop—which considers for the first time the influence of the intermediate state—was developed and then simplified for the purpose of convenient utilizations. Finally, the new Model and its simplified form were tested by comparisons with the experimental results. The agreements are good, with the mean deviations being <5%. © 2013 American Institute of Chemical Engineers AIChE J, 59: 2694–2705, 2013
Xue‐jun Fan - One of the best experts on this subject based on the ideXlab platform.
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A new dry tray Pressure Drop Model of float valve trays
AIChE Journal, 2013Co-Authors: Jun Wang, Rui Cao, Yi‐xuan Tang, Yan‐sheng Liu, Tian‐xin Chen, Xue‐jun FanAbstract:An accurate prediction of the dry Pressure Drop is very important for consideration of valve trays and for calculations in distillation field. Therefore, in this article, a series of hydraulic experiments were first conducted to reveal that the intermediate state during the valve opening process is closely related to the dry tray Pressure Drop under great valve weight. Then, a rigorous force analysis was made to show that Euler number is related only to the valve's position at the balance points for a certain valve type. Third, a new Model for prediction of the dry tray Pressure Drop—which considers for the first time the influence of the intermediate state—was developed and then simplified for the purpose of convenient utilizations. Finally, the new Model and its simplified form were tested by comparisons with the experimental results. The agreements are good, with the mean deviations being
Rui Cao - One of the best experts on this subject based on the ideXlab platform.
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a new dry tray Pressure Drop Model of float valve trays
Aiche Journal, 2013Co-Authors: Ju Wang, Yixua Tang, Yansheng Liu, Rui Cao, Tianxi CheAbstract:An accurate prediction of the dry Pressure Drop is very important for consideration of valve trays and for calculations in distillation field. Therefore, in this article, a series of hydraulic experiments were first conducted to reveal that the intermediate state during the valve opening process is closely related to the dry tray Pressure Drop under great valve weight. Then, a rigorous force analysis was made to show that Euler number is related only to the valve's position at the balance points for a certain valve type. Third, a new Model for prediction of the dry tray Pressure Drop—which considers for the first time the influence of the intermediate state—was developed and then simplified for the purpose of convenient utilizations. Finally, the new Model and its simplified form were tested by comparisons with the experimental results. The agreements are good, with the mean deviations being <5%. © 2013 American Institute of Chemical Engineers AIChE J, 59: 2694–2705, 2013
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A new dry tray Pressure Drop Model of float valve trays
AIChE Journal, 2013Co-Authors: Jun Wang, Rui Cao, Yi‐xuan Tang, Yan‐sheng Liu, Tian‐xin Chen, Xue‐jun FanAbstract:An accurate prediction of the dry Pressure Drop is very important for consideration of valve trays and for calculations in distillation field. Therefore, in this article, a series of hydraulic experiments were first conducted to reveal that the intermediate state during the valve opening process is closely related to the dry tray Pressure Drop under great valve weight. Then, a rigorous force analysis was made to show that Euler number is related only to the valve's position at the balance points for a certain valve type. Third, a new Model for prediction of the dry tray Pressure Drop—which considers for the first time the influence of the intermediate state—was developed and then simplified for the purpose of convenient utilizations. Finally, the new Model and its simplified form were tested by comparisons with the experimental results. The agreements are good, with the mean deviations being
Shekar Viswanathan - One of the best experts on this subject based on the ideXlab platform.
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Development of a Pressure Drop Model for a variable throat venturi scrubber
Chemical Engineering Journal, 1998Co-Authors: Shekar ViswanathanAbstract:Abstract Experimental studies were performed using a pilot-plant scale McInnis–Bischoff variable throat venturi scrubber using operating variable ranges that are normally encountered with industrial size units. The investigation involved the examination of Pressure Drop as a function of various liquid-to-gas ratios, throat gas velocities and throat area. Two hundred and five separate runs were carried out by measuring Pressure Drop by varying the throat gas velocity, and the liquid loading. A better understanding of single-phase and two-phase flow losses in variable throat scrubber was achieved during this study. The Rothfus et al. correlation for single-phase flow in annuli has been extended to low ( L ′/ D ) eq values for velocities in the range of 60–120 m/s. This extended correlation was essential for the prediction of two-phase frictional losses for all the Models tested using the McInnis–Bischoff variable throat venturi scrubber data. The simplified empirical correlation, Δ P TP =− Δ P SP +3.16×10 −2 L G −24.52 where the Pressure Drop expressed in cms of water was obtained for the prediction of two-phase Pressure Drop at various liquid-to-gas ratios and throat velocities in the McInnis–Bischoff scrubber.
Philippe Glenat - One of the best experts on this subject based on the ideXlab platform.
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Relative Pressure Drop Model for Hydrate Formation and Transportability in Flowlines in High Water Cut Systems
Energies, 2020Co-Authors: Trung-kien Pham, Ana Cameirão, Aline Melchuna, Jean-michel Herri, Philippe GlenatAbstract:Today, oil and gas fields gradually become mature with a high amount of water being produced (water cut (WC)), favoring conditions for gas hydrate formation up to the blockage of pipelines. The Pressure Drop is an important parameter which is closely related to the multiphase flow characteristics, risk of plugging and security of flowlines. This study developed a Model based on flowloop experiments to predict the relative Pressure Drop in pipelines once hydrate is formed in high water cutsystems in the absence and presence of AA-LDHI and/or salt. In this Model, the relative Pressure Drop during flow is a function of hydrate volume and hydrate agglomerate structure, represented by the volume fraction factor (Kν). This parameter is adjusted for each experiment between 1.00 and 2.74. The structure of the hydrate agglomerates can be predicted from the measured relative Pressure Drop as well as their impact on the flow, especially in case of a homogeneous suspension of hydrates in the flow.
