Mass and momentum transfer in blood oxygenators

Goerke, A. R.; Leung, Joseph Y.-T.; Wickramasinghe, S. Ranil

doi:10.1016/s0009-2509(02)00099-4

Cited by 41 publications

(35 citation statements)

References 15 publications

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“…Flow problem in a porous tube or channel received much attention in recent years due to its various applications in medical engineering, for example, in the dialysis of blood in artificial kidney [1], in the flow of blood in the capillaries [2], in the flow in blood oxygenators [3], as well as in many http://ppr.buaa.edu.cn/ www.sciencedirect.com other engineering areas such as the design of filters [4], in transpiration cooling boundary layer control [5] and gaseous diffusion [6]. In 1953, Berman [7] described an exact solution of the Navier-Stokes equation for steady twodimensional laminar flow of a viscous, incompressible fluid in a channel with parallel, rigid, porous walls driven by uniform, steady suction or injection at the walls.…”

Section: Introductionmentioning

confidence: 99%

Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Fakour

Vahabzadeh

Ganji

2015

Propulsion and Power Research

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In this paper, laminar fluid flow and heat transfer in channel with permeable walls in the presence of a transverse magnetic field is investigated. Least square method (LSM) for computing approximate solutions of nonlinear differential equations governing the problem. We have tried to show reliability and performance of the present method compared with the numerical method (Runge-Kutta fourth-rate) to solve this problem. The influence of the four dimensionless numbers: the Hartmann number, Reynolds number, Prandtl number and Eckert number on non-dimensional velocity and temperature profiles are considered. The results show analytical present method is very close to numerically method. In general, increasing the Reynolds and Hartman number is reduces the nanofluid flow velocity in the channel and the maximum amount of temperature increase and increasing the Prandtl and Eckert number will increase the maximum amount of theta.

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Section: Introductionmentioning

confidence: 99%

Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Fakour

Vahabzadeh

Ganji

2015

Propulsion and Power Research

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“…In order to compensate for this current designs typically increase the dialysate flowrate, which is not practical for home dialysis. The current practice of short, intensive hemodialysis sessions lead to significant fluctuations in blood chemistry and elicit immune system responses from blood membrane contact (Goerke et al 2002). The morbidity of patients has been shown to be directly correlated with dialysis intensity (Brunelli et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Urea separation in flat-plate microchannel hemodialyzer; experiment and modeling

Tuhy

2012

Biomed Microdevices

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Two flat-plate microchannel hemodialyzers were constructed consisting of two identical laminae separated by a 20[μm] thick ultrafiltration membrane (Gambro AN69). Each lamina contains a parallel array of microchannels 100[μm] deep, 200[μm] wide, and 5.6[cm] or 9.9[cm] in length respectively. Urea was removed from the aqueous stream containing 1.0[g] urea per liter de-ionized water in the blood side, by countercurrent contact with pure de-ionized water in the dialysate side of the flat-plate hemodialyzer. In all cases volumetric flow rate of water in the dialysate side was equal or less than the volumetric flow rate in the blood side, which is in large contrast to commercial applications of hollow-fiber hemodialyzers where dialysate flow is severalfold larger than blood flow rate. A three-dimensional finite volume mass transport model, built entirely from the first principles with no adjustable parameters, was written in FORTRAN. The results of the mathematical model excellently predict experimental results. The fractional removals of urea predicted by the model are within 2.7%-11% of experimentally obtained values for different blood and dialysate velocities/flow rates in microchannels, and for different transmembrane pressures. The overall mass transfer coefficient was calculated using the urea outlet concentrations obtained at various average velocities (1.0-5.0[cm/s]) in the blood and dialysate, and two nominal transmembrane pressures (∆P(tm) = 0 and 10,000.[Pa]). Overall mass transfer coefficients obtained experimentally ranged from 0.068 to 0.14 [cm/min]. The numerical model predicted an average overall mass transfer coefficient of 0.08 [cm/min]. This value is 60% higher than those found in commercial dialyzers (~0.05[cm/min]).

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“…Several researchers have investigated the mass transfer correlations for membrane oxygenators [17][18][19][20][21][22][23][24][25][26][27][28][29][30], gas absorption modules [31][32][33], and other hollow fiber membrane devices [34][35][36][37][38][39]. Also, researchers in heat transfer have reported the heat transfer correlation for tube heat exchanger using tube bundle [40][41][42][43][44][45][46][47][48][49].…”

Section: Mass Transfer Correlations For Hollow Fiber Modulementioning

confidence: 99%

Rearrangement of hollow fibers for enhancing oxygen transfer in an artificial gill using oxygen carrier solution

Nagase

Kohori

Sakai

et al. 2005

Journal of Membrane Science

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Mass and momentum transfer in blood oxygenators

Cited by 41 publications

References 15 publications

Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Study of heat transfer and flow of nanofluid in permeable channel in the presence of magnetic field

Urea separation in flat-plate microchannel hemodialyzer; experiment and modeling

Rearrangement of hollow fibers for enhancing oxygen transfer in an artificial gill using oxygen carrier solution

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