Effects of Design Parameters on Air-Water Two-Phase Flow Performance of a Radial-Flow Pump.

Minemura, Kiyoshi; Kinoshita, Katsuhiko; Ihara, Masaru; Egashira, Kazuyuki

doi:10.1299/kikaib.61.2996

Cited by 5 publications

(2 citation statements)

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“…The similarity law of a centrifugal pump is described by Q ∝ BD 2 designed at φ L =0.08 as a shock-less entry at the impeller inlet, and the specific speed is 149(min -1 , m 3 /min, m) in the case of D190_B13 w/o OS impeller. Figures 3 and 4 show the characteristic curves in water single-phase flow and the air-water twophase flow at φ L =0.08 constant.…”

Section: Similarity Law Of Rotational Speedmentioning

confidence: 99%

“…Especially, in the offshore oil production and aeration process of sewage disposal, a cost-reduction is desired by using a two-phase flow pump instead of using a pump and a compressor simultaneously with a gas-liquid separator [1]. Air-water two-phase flow performances of conventional centrifugal pump with the backward blades causes the severe deterioration at an inlet void fraction less than about 10% due to the strong centrifugal effect on the pump internal flow [2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on Design of Air-water Two-phase Flow Centrifugal Pump Based on Similarity Law

Matsushita¹,

Furukawa²,

Watanabe³

et al. 2009

International Journal of Fluid Machinery and Systems

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A conventional centrifugal pump causes a drastic deterioration of air-water two-phase flow performances even at an air-water two-phase flow condition of inlet void fraction less than 10% in the range of relatively low water flow rate. Then we have developed a two-phase flow centrifugal pump which consists of a tandem arrangement of double rotating cascades and blades of outer cascade have higher outlet angle more than 90º. In design of the two-phase flow pump for various sized and operating conditions, similarity relations of geometric dimensions to hydraulic performances is very useful. The similarity relations of rotational speed, impeller diameter and blade height are investigated for the developed impeller in the present paper. As the results, the similarity law of rotational speed and impeller diameter is clarified experimentally even in two-phase flow condition. In addition, influences of blade height on air-water two-phase flow performances indicate a little difference from the similarity relations.

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Section: Similarity Law Of Rotational Speedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%