The modeling of centrifugal pump transients

• Autorzy: Szymczyk J. , Karaśkiewicz K.
• Języki publikacji: EN

Abstrakty

EN

Centrifugal pumps are part of larger hydraulic systems. These hydraulic machines can work not only in the pumping mode but in a number of other modes whose job description is possible using complete characteristics. Some of these modes, such as the turbine mode and the reversed turbine mode, may have practical significance. Knowledge of the transition from one steady state to another state allows to estimate instantaneous values such as, e.g., flow current and torque, which may be even a few times higher than nominal. The principal issues in these transients are amplitudes of parameters of these pumps and the time constants associated with the characteristics of the system.

Słowa kluczowe

EN

rotodynamic pumps; complete pump characteristics; transients

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2015
• Tom: nr 130
• Strony: 83--92
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Szymczyk J.

• Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, pl. Politechniki 1, 00-661 Warsaw, Poland

autor

Karaśkiewicz K.

• Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, pl. Politechniki 1, 00-661 Warsaw, Poland

Bibliografia

• 1] Centrifugal Pump Lexicon. KSB A.G., Frankenthal 1990.
• [2] Sulzer Centrifugal Pump Handbook. Elsevier, London 1992.
• [3] Stepanoff A.J.: Centrifugal and Axial Flow Pumps. J.Wiley, New York 1957.
• [4] Jędral W.: Rotodynamic pumps. PWN, Warsaw 2001 (in Polish).
• [5] Ayder E. et al.: Experimental investigation of the complete characteristics of rotodynamic pumps. FEDSM2009, ASME 2009 Fluids Engineering Division Summer Meeting, Colorado, August 2–6, 2009.
• [6] Jędral W., Karaśkiewicz K.: Start-up of axial-flow pump at initial reverse flow. Pompy-Pompownie 4(2002), 30–34 (in Polish).
• [7] Stepanoff A.J., Wiley J.: Centrifugal and Axial Flow Pumps. New York 1957.
• [8] Jędral W.: Universal representation of the characteristics of the complete centrifugal pumps with different specific speed. In: Proc. 11th Nat. Conf. Mech. Fluids, Warsaw 1994, 97–102.
• [9] Lahssuny Y.: Transients caused by the pump coastdown in pressurized water reactors. PhD thesis, Warsaw University of Technology, Warsaw 1996.