Numerical Simulation and Computational Flow Characterization Analyses of Centrifugal Pump Operating as Turbine

Table 1

Comparison methods to obtain BEP for PAT.

Ns (m, m^3/s)	Pmax (%)	D (m)	h	q	h	q	h	q	h	q	h	q
14.6	65.5	0.250	2.05	1.56	1.63	1.28	1.78	1.45	2.20	2.09	2.14	1.48
14.7 (Williams, 1992)	46	0.125	2.87	1.63	2.17	1.47	2.54	1.86	2.84	2.4	2.71	1.72
20.7 (micro-hydropower development, 2003)	60	0.160	2.24	1.73	1.84	1.42	2.4	1.66	2.22	2.04	2.29	1.74
23.0	76	0.250	1.95	1.59	1.41	1.19	1.49	1.29	1.78	1.76	1.94	1.60
34.8 (Joshi S., 2005)	83	—	1.71	1.55	1.28	1.14	1.34	1.20	1.49	1.36	1.70	1.48
36.4 (Singh, 2005)	74.4	0.175	1.72	1.54	1.81	1.34	1.43	1.27	1.73	1.78	1.71	1.50
37.7	86.5	0.250	1.73	1.48	1.24	1.11	1.27	1.16	1.34	1.16	1.65	1.44
45.2 (Singh, 2005)	80	0.200	1.40	1.38	1.56	1.25	1.31	1.2	1.51	1.49	1.51	1.33
55.6	87	0.250	1.34	1.15	1.23	1.11	1.26	1.16	1.32	1.13	1.38	1.18