موقعك الحالي:صفحة رئيسية>المنتجات
2002-6-1 · Mass transfer and friction factor correlations for commercially available hollow fibre and flat sheet blood oxygenators have been determined experimentally. Water was used as a substitute for blood. ... (28) may be rewritten as (29) St mass Sc 2 3 =St mom, where St mass and St mom are the Stanton numbers for mass and momentum transfer ...
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2002-9-10 · The transport of momentum is described by a friction factor, f, which is defined differently to the overall mass transfer coefficient, F=AH,(0.5pv2)f where F is the friction force, A , is the wetted surface and p and v are the density and velocity of the fluid, respectively [6].
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Mass and momentum transfer in commercial blood oxygenators: by Binbing Han and S.R. Wickramasinghe. Desalination 148 (2002) 227-233. Abstract In modern blood oxygenators, microporous membranes (flat sheet or hollow fibre) are used to separate the blood and gas phases. Blood flows on one side of the membrane while gas (usually oxygen or air ...
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Mass and momentum transfer in commercial blood oxygenators ... this study mass transfer and friction factor correlations for commercially available hollow fibre and flat sheet blood oxygenators have been determined experimentally. Water was used as a substitute for blood. The diffusion of oxygen into and out of water has been studied.
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2002-10-1 · Mass transfer and friction factor correlations for microporous hollow fibre blood oxygenators (BOs) have been determined experimentally. Water and glycerol water solutions were used as a substitute for blood. The diffusion of oxygen into and out of water and glycerol water solutions has been studied. The liquid stream flowed outside and across ...
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2011-11-10 · DEVELOPMENT OF COMPUTATIONAL MASS AND MOMENTUM TRANSFER MODELS FOR EXTRACORPOREAL HOLLOW FIBER MEMBRANE OXYGENATORS . Kenneth Leslie Gage, PhD . University of Pittsburgh, 2007. Simulation of mass and momentum transfer in hollow fiber membrane (HFM) oxygenators has remained a topic of interest for decades.
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Simulation of mass and momentum transfer in hollow fiber membrane (HFM) oxygenators has remained a topic of interest for decades. The current work reports upon efforts toward modeling the transport phenomena within these devices using a computational fluid dynamic (CFD) approach. The results and findings form a basis for future efforts in computational model
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Mass and momentum transport in extra-luminal flow (ELF) membrane devices for blood oxygenation ... In this study, the blood flow through two HFM oxygenators, including the commercially-available ...
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2021-7-30 · Mass and momentum transfer in hollow fibre blood oxygenators Journal of Membrane Science ，2002，208 (1-2)： 247-256. [本文引用: 2] [17] 沈良，谢为，庞燕婉 等. 内置式膜式氧合器模型氧合效果的评价 复旦学报(自然科学版 ...
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2001-3-15 · The study aimed at obtaining semi-empirical non-dimensional equations correlating shell-side pressure drop and oxygen transfer rate to module geometry and operating conditions, that can be used for the development of optimal ELF membrane oxygenators. Momentum and mass transport in the liquid phase circulating outside the membranes were ...
Read MoreMass and momentum transfer in commercial blood oxygenators: by Binbing Han and S.R. Wickramasinghe. Desalination 148 (2002) 227-233. Abstract In modern blood oxygenators, microporous membranes (flat sheet or hollow fibre) are used to separate the blood and gas phases. Blood flows on one side of the membrane while gas (usually oxygen or air ...
Read MoreSimulation of mass and momentum transfer in hollow fiber membrane (HFM) oxygenators has remained a topic of interest for decades. The current work reports upon efforts toward modeling the transport phenomena within these devices using a computational fluid dynamic (CFD) approach. The results and findings form a basis for future efforts in computational model
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Characterization of mass and momentum transfer in blood oxygenators therefore important to the design of these devices. ... Organ-izing the curriculum with
Read MoreMass and momentum transport in extra-luminal flow (ELF) membrane devices for blood oxygenation ... In this study, the blood flow through two HFM oxygenators, including the commercially-available ...
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2012-8-17 · Goerke AR, Leung J, Wickramasinghe SR. Mass and momentum transfer in blood oxygenators. Chem Eng Sci. 2002;57:2035–46. Article CAS Google Scholar 22. Wickramasinghe SR, Han B. Mass and momentum transfer in commercial blood oxygenators. Desalination. 2002;184:227–33. Article Google Scholar 23.
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2021-3-21 · Wickramasinghe S R，Garcia J D，Han B B. Mass and momentum transfer in hollow fibre blood oxygenators. Journal of Membrane Science，2002，208(1-2)：247-256. 17 沈良，谢为，庞燕婉等. 内置式膜式氧合器模型氧合效果的评价. 复旦学报(自然科学版
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2020-7-31 · Blood oxygenators, also known as artificial lungs, are widely used in cardiopulmonary bypass surgery to maintain physiologic oxygen ... “Development of Computational Mass and Momentum Transfer Models for Extracorporeal Hollow Fiber Membrane Oxygenators,” Ph.D. thesis, University of Pittsburgh, ...
Read MoreNew laboratory experiments with hollow fiber blood oxygenators allow integration of concepts into already full programs. This work describes three new educational experiments that have been developed to introduce students to concepts of mass balances, mass transfer and momentum transfer as applied to a hollow fiber blood oxygenator. In addition ...
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2008-5-9 · Mass and Momentum Transfer in Commercial Blood Oxygenators,” Desalination. 0011-9164, 148 (1–3), pp. 227 ...
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2015-2-25 · 8.3 Correlations of Mass Transfer Coefficients 249 8.4 Dimensional Analysis: The Route to Correlations 257 8.5 Mass Transfer Across Interfaces 261 8.6 Conclusions 269 Questions for Discussion 270 Problems 270 Further Reading 273 9 Theories of Mass Transfer 274 9.1 The Film Theory 275 9.2 Penetration and Surface-Renewal Theories 277 9.3 Why
Read More2020-7-31 · Blood oxygenators, also known as artificial lungs, are widely used in cardiopulmonary bypass surgery to maintain physiologic oxygen ... “Development of Computational Mass and Momentum Transfer Models for Extracorporeal Hollow Fiber Membrane Oxygenators,” Ph.D. thesis, University of Pittsburgh, ...
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2021-7-30 · Use of blood oxygenator membrane units in teaching mass balances, friction factor and mass transfer analysis ... laboratory experiments with hollow fiber blood oxygenators allow integration of concepts ... have been developed to introduce students to concepts of mass balances, mass transfer and momentum transfer as applied to a hollow fiber ...
Read MoreNew laboratory experiments with hollow fiber blood oxygenators allow integration of concepts into already full programs. This work describes three new educational experiments that have been developed to introduce students to concepts of mass balances, mass transfer and momentum transfer as applied to a hollow fiber blood oxygenator. In addition ...
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2018-10-24 · The gas exchange between the tube-side fluid and the shell-side venous blood is modeled by solving mass, momentum and species conservation equations.,Simulations using sub-channel analysis are performed for the first time. As the DIANA-based approach is well known in rod bundle heat transfer, it is applied to membrane oxygenators.
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2022-2-10 · Computational fluid dynamics (CFD) techniques are increasingly used to analyze and optimize flow, mass transfer, and blood damage characteristics of blood contacting devices such as blood pumps, 1 oxygenators, 2 and dialyzers. 3 As part of work conducted under support of a contract with the National Heart, Lung, and Blood Institute (NHLBI), Ension has used CFD
Read More2008-5-9 · Mass and Momentum Transfer in Commercial Blood Oxygenators,” Desalination. 0011-9164, 148 (1–3), pp. 227 ...
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2012-8-17 · Geometric data are fundamental to the design of a contactor. The efficiency of a membrane contactor is mainly defined by its mass-transfer coefficient. However, design modifications also have significant effects on the performance of membrane contactors. In a hollow-fiber membrane oxygenator (HFMO), properties such as priming volume and effective
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2005-1-18 · Extracorporeal blood oxygenators are used to oxygenate blood during open-heart surgery. Hydrophobic microporous flat-sheet or hollow-fiber membranes are used to separate blood and gas phases. Oxygen ...
Read More2013-4-25 · Based on their design, all membrane oxygenators generate a certain resistance to flow. In clinical practice, this resistance is calculated by measuring both blood flow and the pressure drop over the oxygenator.
Read More2015-2-25 · 8.3 Correlations of Mass Transfer Coefficients 249 8.4 Dimensional Analysis: The Route to Correlations 257 8.5 Mass Transfer Across Interfaces 261 8.6 Conclusions 269 Questions for Discussion 270 Problems 270 Further Reading 273 9 Theories of Mass Transfer 274 9.1 The Film Theory 275 9.2 Penetration and Surface-Renewal Theories 277 9.3 Why
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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