Results 211 to 220 of about 92,347 (259)
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ASAIO Journal, 1995
From an engineering point of view, the suitable revolution number for high efficiency operation of an axial flow pump is known. A multistage axial flow pump is a useful tool for reducing revolution number with a high efficiency axial flow pump. A two stage (25) axial flow pump designed at a 5 L/min flow rate and a 100 mmHg pressure head was evaluated ...
Yoshinari Wakisaka +12 more
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From an engineering point of view, the suitable revolution number for high efficiency operation of an axial flow pump is known. A multistage axial flow pump is a useful tool for reducing revolution number with a high efficiency axial flow pump. A two stage (25) axial flow pump designed at a 5 L/min flow rate and a 100 mmHg pressure head was evaluated ...
Yoshinari Wakisaka +12 more
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Improving the Performance of an Axial Flow Pump: An Overview
Advances in Science and Technology, 2021Thus far, axial flow pumps remain a significant hydrodynamic unit. These pumps have common applications for various systems that require a high flow rate and a lower head. They tend to be less efficient and consume excessive power when operating at low flow conditions.
M. Prince Moifatswane +2 more
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The Performance of an Axial-Flow Pump
Proceedings of the Institution of Mechanical Engineers, 1956Tests were made on an 11-inch diameter axial-flow propeller pump with impeller and guide blades designed for free vortex conditions, using as a basis the modified aerofoil theory. The best overall efficiency obtained was 82 per cent. Apart from head-flow and efficiency characteristics, measurements were made of velocities and yaw angles within the ...
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The Design of Axial Flow Pumps
Journal of Fluids Engineering, 1956Abstract A design procedure for axial-flow pump impellers is presented that accounts for induced interference effects in the prediction of performance. Induced interference velocities at an impeller blade have been calculated using a three-dimensional model that includes the effects of the other blades and of the total downstream ...
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[The design of axial flow pump].
Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, 2002Axial flow pump has been the hot point of the research field of circulatory support. This article has outlined the basic principle of its design and the methodology of its experimental study, and explained that excellent engineer design, avoiding turbulence, cavitation and wake, and reducing the destroy of red blood cells were the goal to get in design
E, Chen, X, Yu, W, Ding
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ASAIO journal (American Society for Artificial Internal Organs : 1992), 2003
Each year, thousands of cardiac patients await healthy donor hearts for transplantation. Due to the current shortage of donor hearts (approximately 2300 per year), these patients often require supplemental circulatory support until a transplant becomes available. This supplemental support is often provided by a mechanical heart pump or left ventricular
Xinwei, Song +6 more
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Each year, thousands of cardiac patients await healthy donor hearts for transplantation. Due to the current shortage of donor hearts (approximately 2300 per year), these patients often require supplemental circulatory support until a transplant becomes available. This supplemental support is often provided by a mechanical heart pump or left ventricular
Xinwei, Song +6 more
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Submersible axial-flow pumps for dredges
Hydrotechnical Construction, 19951. For the first time in Russia a submersible axial-flow dredge pump was developed and tested for installation as a first-stage pump on dredges to reduce the negative pressure before the hold dredge pump and to increase its positive suction head. 2.
S. P. Ogorodnikov +2 more
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CONE FLOW AND AXIAL FLOW PUMPS
1993This chapter describes cone flow and axial flow pumps. For low heads up to about 40 m per stage and for type numbers above about 3000, cone flow and axial flow pumps may be used. In general, these pumps have vertical spindles and are arranged to draw water directly from a well or sump, for example, mixed flow pump.
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Numerical study on the impeller of an axial flow blood pump
2011 4th International Conference on Biomedical Engineering and Informatics (BMEI), 2011Continuous flow rotary blood pumps have been developed for decades due to the limited heart donors. Both axial and centrifugal flow types have been developed. In this study, an axial flow blood pump is studied, and the main focus is on the impeller optimization. Totally, nine impeller designs have been studied.
Leok Poh Chua, Boyang Su
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An Approach to Reducing Hemolysis in an Axial-Flow Blood Pump
ASAIO Journal, 1995In an attempt to decrease hemolysis caused by an axial-flow blood pump, we studied whether specific speed (Ns) at a design point (determined by flow in m3/min, pump head in m, and pump speeds in rpm), should be kept within the existing engineering standard range (1000 < Ns < 2500) or whether pump speed should be reduced to a minimum (Ns < 1000).
Hirofumi Anai +10 more
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