Transient Behavior of A Cavitating Centrifugal Pump at Rapid Change in Operating Conditions-Part 2 : Transient Phenomena at Pump Startup/Shutdown  

Oleh:

Tsukamoto, H. ; Tanaka, T.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 121 no. 4 (1999), page 850-856.
Topik: PUMP; transient behaviour; cavitating centrifugal; rapid change; operating conditions; phenomena; pump

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

In the 1st report, the dynamic behaviour of a cavitating centrifugal pump was related to the transient phenomena at the sudden opening / closure of the discharge valve. In this paper, the experimental study was extended to the transient behavior of the cavitating centrifugal pump at rapid starting / stopping of the pump. Unsteady pressures and flowrate were related to time - dependent cavitation behaviour in a similar manner as for the rapid operation of the discharge valve. As a result of the present study, pressure fluctuations were found to occur due to water column separation at the sudden stop of the pump similarly to pressure oscillations associated with the sudden closure of the discharge valve. Moreover, the experimental results on the transient behaviour at pump startup indicated that the transient fluctuations of delivery pressure and discharge flowrate are caused by oscillating cavitation similarly to the ones occurring at the opening of the discharge valve.

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