Effect of Flow Baffles on the Dialysate Flow Distribution of Hollow-Fiber Hemodialyzers: A Nonintrusive Experimental Study Using MRISource: Journal of Biomechanical Engineering:;2003:;volume( 125 ):;issue: 004::page 481Author:Churn K. Poh
,
Peter A. Hardy
,
Zhijie Liao
,
William R. Clark
,
Dayong Gao
,
Zhongping Huang
DOI: 10.1115/1.1590355Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We used an innovative, nonintrusive MRI technique called the two-dimensional (2D) Phase-Contrast (2DPC) velocity-imaging technique to investigate the effect of flow baffles on the dialysate-side flow distribution in two different hollow-fiber hemodialyzers (A and B); each with flow rates between 200 and 1000 mL/min (3.33×10−6 and 1.67×10−5 m3/s). Our experimental results show that (1) the dialysate-side flow distribution was nonuniform with channeling flow occurred at the peripheral cross section of these hollow-fiber hemodialyzers, and (2) the existing designs of flow baffles failed to promote uniform dialysate-side flow distribution for all flow rates studies.
keyword(s): Flow (Dynamics) , Fibers , Imaging AND Magnetic resonance imaging ,
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| contributor author | Churn K. Poh | |
| contributor author | Peter A. Hardy | |
| contributor author | Zhijie Liao | |
| contributor author | William R. Clark | |
| contributor author | Dayong Gao | |
| contributor author | Zhongping Huang | |
| date accessioned | 2017-05-09T00:09:30Z | |
| date available | 2017-05-09T00:09:30Z | |
| date copyright | August, 2003 | |
| date issued | 2003 | |
| identifier issn | 0148-0731 | |
| identifier other | JBENDY-26331#481_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/127966 | |
| description abstract | We used an innovative, nonintrusive MRI technique called the two-dimensional (2D) Phase-Contrast (2DPC) velocity-imaging technique to investigate the effect of flow baffles on the dialysate-side flow distribution in two different hollow-fiber hemodialyzers (A and B); each with flow rates between 200 and 1000 mL/min (3.33×10−6 and 1.67×10−5 m3/s). Our experimental results show that (1) the dialysate-side flow distribution was nonuniform with channeling flow occurred at the peripheral cross section of these hollow-fiber hemodialyzers, and (2) the existing designs of flow baffles failed to promote uniform dialysate-side flow distribution for all flow rates studies. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effect of Flow Baffles on the Dialysate Flow Distribution of Hollow-Fiber Hemodialyzers: A Nonintrusive Experimental Study Using MRI | |
| type | Journal Paper | |
| journal volume | 125 | |
| journal issue | 4 | |
| journal title | Journal of Biomechanical Engineering | |
| identifier doi | 10.1115/1.1590355 | |
| journal fristpage | 481 | |
| journal lastpage | 489 | |
| identifier eissn | 1528-8951 | |
| keywords | Flow (Dynamics) | |
| keywords | Fibers | |
| keywords | Imaging AND Magnetic resonance imaging | |
| tree | Journal of Biomechanical Engineering:;2003:;volume( 125 ):;issue: 004 | |
| contenttype | Fulltext |