Abstract
Users, researchers and engineers require a fundamental knowledge of reverse pump theory. In this chapter first, a complete description of all PAT components is given. Then, the theory of small reverse pumps is described, based on the results of theoretical analyses, experiments and numerical simulations. PAT characteristic and efficiency curves are introduced and, the influence of pump size and rotational speed on such curves is considered. The possibility of using numerical simulations instead of experimental results is discussed. Finally, additional aspects like cavitation and the incidence of pressure surges are presented and different tools, commonly used for PAT sizing and hydropower plant design, are described. The reader will be prepared, by means of the theoretical basis provided, for the comprehension of the hydraulic and mechanical processes connected with a PAT operation.
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Notes
- 1.
Net Positive Suction Head.
References
S. Derakhshan, A. Nourbakhsh, Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds. Exp. Therm. Fluid Sci. 32(3), 800–807 (2008)
S.-S. Yang, S. Derakhshan, F.-Y. Kong, Theoretical, numerical and experimental prediction of pump as turbine performance. Renew. Energy 48, 507–513 (2012)
A. Williams, Pumps as Turbines used with Induction Generators for Stand-alone Micro-hydroelectric Power Plants (Nottingham Trent University, UK, 1992)
A. Nourbakhsh, S. Derakhshan, E. Javidpour, A. Riasi, Centrifugal & axial pumps used as turbines in small hydropower stations, in Hidroenergia 2010: International Congress on Small Hydropower International Conference and Exhibition on Small Hydropower (2010), pp. 16–19
S. Derakhshan, A. Nourbakhsh, Theoretical, numerical and experimental investigation of centrifugal pumps in reverse operation. Exp. Therm. Fluid Sci. 32(8), 1620–1627 (2008)
A. Carravetta, O. Fecarotta, H. Ramos, Numerical simulation on pump as turbine: mesh reliability and performance concerns, in 2011 International Conference on Clean Electrical Power (ICCEP) (2011), pp. 169–174
O. Fecarotta, A. Carravetta, H. Ramos, CFD and comparisons for a pump as turbine: mesh reliability and performance concerns. Int J Energy Env. 2(1), 39–48 (2011)
A. Pereira, H. Ramos, CFD for hydrodynamic efficiency and design optimization of key elements of SHP. Int. J. Energy 1(6), 937–952 (2010)
J.-M. Chapallaz, P. Eichenberger, G. Fischer, Mini Hydro Power Group., and German Appropriate Technology Exchange., in Manual on Pumps Used as Turbines (Vieweg, 1992)
H. Ramos (Editor), Guidelines for design of small hydropower plants. WREAN (Western Regional Energy Agency and Network) and DED (Department of Economic Development—Energy Division), Belfast, North Ireland, ISBN 972-96346-4-5 (2000)
E. Wylie, V. Streeter, in Fluid Transient in Systems (Englewood Cliffs, NJ 7632: Prentice Hall, 1993)
B. Brunone, U.M. Golia, M. Greco, Effects of two-dimensionality on pipe transients modeling. J. Hydraul. Eng. 121(12), 906–912 (1995)
G. Pezzinga, Evaluation of unsteady flow resistances by Quasi-2D or 1D models. J. Hydraul. Eng. 126(10), 778–785 (2000)
H. Ramos, Simulation and Control of Hydrotransients at Small Hydroelectric Power Plants (Technical University of Lisbon, Portugal, 1995)
X.X. Zhang, Y.G. Cheng, L.S. Xia, J.D. Yang, Dynamic characteristics of a pump-turbine during hydraulic transients of a model pumped-storage system: 3D CFD simulation. IOP Conf. Ser. Earth Environ. Sci. 22(3), 32030 (2014)
O. Fecarotta, Impiego Di Pompe Come Turbine: calcolo fluidodinamico per l’analisi prestazionale e l’inserimento in rete (2011)
A. Ismaier, E. Schlücker, Fluid dynamic interaction between water hammer and centrifugal pumps. Nucl. Eng. Des. 239(12), 3151–3154 (2009)
A. Nourbakhsh, A. Jaumotte, C. Hirsch, H. Parizi, in Turbopumps and Pumping Systems (Springer Science & Business Media, 2007)
J.F. Gülich, Centrifugal Pumps (Springer, Berlin, 2008)
P. Singh, Optimization of the Internal Hydraulic and of System Design in Pumps as Turbines with Field Implementation and Evaluation (2005)
S.-S. Yang, F.-Y. Kong, H. Chen, X.-H. Su, Effects of blade wrap angle influencing a pump as turbine. J. Fluids Eng. 134(6), 61102 (2012)
H. Ramos, A.B. Almeida, Dynamic orifice model on waterhammer analysis of high or medium heads of small hydropower schemes. J. Hydraul. Res. 39(4), 429–436 (2001)
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Carravetta, A., Derakhshan Houreh, S., Ramos, H.M. (2018). Reverse Pump Theory. In: Pumps as Turbines. Springer Tracts in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-67507-7_2
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DOI: https://doi.org/10.1007/978-3-319-67507-7_2
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