Abstract
When a centrifugal pump is operated at very low discharge with low suction head, the air dissolving in water merges to become bubble and stays inside an impeller channel. The staying bubbles accumulate to form a large bubble zone and decrease pumping head. This phenomena is called “air locking”, and often arises when air-rich water is used in a pumping system, such as a water supply system of a building.
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References
Yamamoto, K., Instability in a Cavitating Centrifugal Pump, JSME International Jr, Ser. 2, Vol. 34, No. 1 (1991), pp. 9–17.
Brennen, C. and Acosta, A. J., The Dynamic Transfer Function for a Cavitating Inducer, Trans.:IS,t1E, Jr. Fluid Dynamics, Vol. 98, No. 2 (1976), pp. 182–191.
Kaneko, M. and Ohashi, H.,, Self-Excited Oscillations of a Centrifugal Pump System under Air/Water Two Phase Flow Condition, Proc. LAHR Symp.(Arnsterdam), Vol. 2 (1982), Paper No. 36.
Ichiki I., Airtocking Phenomena at Partial Load Operation in Centrifugal Pump, Ebara Research Report (in Japanese), Vol.151(1991–4), p. 24.
Gleitzer, E. M., The Stability of Pumping Systems, Trans. A.SME, Jr. Fluid Engineering, Vol. 103, No. 2 (1981), pp. 193–242.
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© 1996 Springer Science+Business Media Dordrecht
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Kurokawa, J., Matsui, J., Takada, H., Hirayama, T. (1996). Self-Sustained Oscillation of Gas-Liquid Flow in a Centrifugal Pump with Semi-Open Impeller. In: Cabrera, E., Espert, V., Martínez, F. (eds) Hydraulic Machinery and Cavitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9385-9_39
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DOI: https://doi.org/10.1007/978-94-010-9385-9_39
Publisher Name: Springer, Dordrecht
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