TY - GEN
T1 - Influences of impeller diameter and diffuser blades on air-water two-phase flow performance of centrifugal pump
AU - Matsushita, Naoki
AU - Furukawa, Akinori
AU - Okuma, Kusuo
AU - Watanabe, Satoshi
PY - 2005/12/1
Y1 - 2005/12/1
N2 - A tandem arrangement of double rotating cascades and single diffuser cascade, proposed as a centrifugal pump with high performance in air-water two-phase flow condition, yields lower head due to the smallness of the impeller outlet in comparison with a impeller with large outlet diameter and no diffuser. Influences of impeller diameter change and installation of diffuser blades on two-phase flow performance were experimentally investigated under the case of the same volute casing. As the result, the similarity law of the diameter of impeller having the similar blade geometry and the rotational speed is satisfied even in two-phase flow condition. Comparing pump performances between a large impeller without diffuser blades and a small one with diffuser blades, higher two-phase flow performance is obtained by controlling the rotational speed of a small impeller with diffuser blades in the range of small water flow rates, while a large impeller with no diffuser gives high performance in the range of high water flow rate and small air flow rate.
AB - A tandem arrangement of double rotating cascades and single diffuser cascade, proposed as a centrifugal pump with high performance in air-water two-phase flow condition, yields lower head due to the smallness of the impeller outlet in comparison with a impeller with large outlet diameter and no diffuser. Influences of impeller diameter change and installation of diffuser blades on two-phase flow performance were experimentally investigated under the case of the same volute casing. As the result, the similarity law of the diameter of impeller having the similar blade geometry and the rotational speed is satisfied even in two-phase flow condition. Comparing pump performances between a large impeller without diffuser blades and a small one with diffuser blades, higher two-phase flow performance is obtained by controlling the rotational speed of a small impeller with diffuser blades in the range of small water flow rates, while a large impeller with no diffuser gives high performance in the range of high water flow rate and small air flow rate.
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U2 - 10.1115/FEDSM2005-77388
DO - 10.1115/FEDSM2005-77388
M3 - Conference contribution
AN - SCOPUS:33646541686
SN - 0791837602
SN - 9780791837603
T3 - Proceedings of 2005 ASME Fluids Engineering Division Summer Meeting, FEDSM2005
SP - 1704
EP - 1709
BT - Proceedings of 2005 ASME Fluids Engineering Division Summer Meeting, FEDSM2005
T2 - 2005 ASME Fluids Engineering Division Summer Meeting, FEDSM2005
Y2 - 19 June 2005 through 23 June 2005
ER -