Theoretical Model for the Performance of Liquid Ring Pump Based on the Actual Operating Cycle

Table 3

Average relative errors of predicted models.

Type of pump	Average relative errors (%)	Prager’s model			Powle’s model			Proposed model
2BE1103	(r/min)	1170	1300	1450	1170	1300	1450	1170	1300	1450
		5.23	4.25	5.41	4.68	5.36	10.06	1.77	1.83	5.32
		—	—	—	—	—	—	6.43	4.87	6.69
2BE1253	(r/min)	590	740	920	590	740	920	590	740	920
		4.17	7.13	9.38	4.27	5.02	5.80	3.34	2.99	4.94
		—	—	—	—	—	—	6.40	10.53	7.62
2BE1353	(r/min)	372	490	590	372	490	590	372	490	590
		8.85	7.38	7.07	12.95	4.01	4.52	8.66	1.88	1.40
		—	—	—	—	—	—	5.02	4.66	4.46