Influence of Blade Profiles on Plastic Centrifugal Pump Performance

Table 7

Performance experiment of B-spline curve method.

	Measured value					n = 2900 (r/min)
	Inlet pressure	Outlet pressure	Q	n	Pin	Q	H	Pin	η
	(kPa)	(kPa)	(m^3/h)	(r/min)	(kW)	(m^3/h)	(m)	(kW)	(%)
1	−80.00	180.00	21.27	2998.15	5.40	20.57	27.70	4.89	31.77
2	−80.00	220.00	20.05	3001.80	5.31	19.37	31.21	4.79	34.39
3	−80.00	240.00	17.69	3001.60	5.13	17.09	32.69	4.63	32.90
4	−80.00	250.00	16.65	3001.51	5.03	16.09	33.48	4.54	32.34
5	−60.00	280.00	14.91	3001.36	4.81	14.41	34.17	4.34	30.91
6	−40.00	300.00	12.75	3001.13	4.60	12.32	33.90	4.15	27.41
7	−30.00	310.00	11.08	3000.93	4.44	10.71	33.71	4.01	24.54
8	−30.00	330.00	8.29	3000.63	4.26	8.01	35.37	3.85	20.07
9	−20.00	340.00	7.06	3000.61	4.17	6.82	35.28	3.76	17.42
10	−20.00	350.00	5.81	3000.56	4.05	5.62	36.16	3.66	15.13
11	−10.00	350.00	4.75	3000.45	3.92	4.59	35.16	3.54	12.42
12	−10.00	360.00	3.29	3000.55	3.82	3.18	36.05	3.45	9.05
13	−10.00	370.00	2.14	3000.56	3.72	2.07	36.97	3.36	6.20