Study of the Different Factors That Influence Jet Pump Performance

A. A. Saker, H. Z. Hassan

Public Authority of Applied Education and Training, Kuwait City, Kuwait.

DOI: 10.4236/ojfd.2013.32006                

Abstract

The objective of this work is to study experimentally the characteristics of jet pump. Suction head, driving air pressure and the percentage of the distance between throat section and nozzle are recorded. The effect of each parameter on the pump performance is investigated, in order to have a better understanding about the behavior of such pump under various conditions. A simple geometry jet pump was designed, developed and tested. The experiments show that we should be careful in increasing the suction head, and stability must be considered between the suction head and the driving air mass flow rate. While the effect of increasing P_a will stop at certain maximum of the ratio of the mass flow rate of water to air (M), that is any increase in P_a will meet no change in M. While increasing S/D_th will leads to decrease in the percentage of M because the optimum S/D_th = 0.5 so that at this value we will have the best performance and any other values for S/D_th the percentage M will decreases, but this effect is not so clear and it could be neglected. The pump performance is not so sensitive with the change of S/D_th after S/D_th = 0.5. Also this information will help improving and extending the use of the jet pump in many practical applications.

Keywords

Jet Pump; Nozzle-Throat Interface; Driving Air Pressure

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	E. Lisowski and H. Momeni, “CFD Modeling of a Jet Pump with Circumferential Nozzles for Large Flow Rates,” Archives of Foundry Engineering, Vol. 10, No. 3, 2010. pp. 69-72.
[2]	J. M. Sawicki, “Hydraulic Loss Coefficient in 1D Flows,” Archives of Hydro-Engineering and Environmental Mechanics, Vol. 54, No. 2, 2007, pp. 95-116
[3]	H. J. Zhu, B. S. Qiu, Q. K. Jia and X. L. Yang, “Simulation Analysis of Hydraulic Jet Pump,” Advanced Material Research, Vol. 204-210, 2011, pp. 293-296.
[4]	I. A. El-Sawaf, M. A. Halawa, M. A. Younes and I. R. Teaima, “Study of the Different Parameters that Influence on the Performance of Water Jet Pump,” Fifteenth International Water Technology Conference, Alexandria, 2011.
[5]	R. T. Ibrahim, “A Central-Type Jet Pump Model For Wheat Grains Removing From Water Channels,” Sixteenth International Water Technology Conference, Turkey, 2012.
[6]	N. H. G. Mueller, “Water Jet Pump,” 1964.
[7]	R. Vogal, “Theoretische und Experimentelle Untersuchungen as Strohlopparaten,” Vol. 5, Maschinenbautechnick, Berlin, 1965.
[8]	F. Schulz and K. H. Fasol, “Wasserstahlpumen Zur Forderung Von Flussegkeiten,” “Springer-Verlag, Vienna, 1958.
[9]	N. L. Sanger, “Non-Cavitation Performance of Two Low Area Ratio Water Jet Pumps Having Throat Lengths of 7.25 Diameters,” 1985.
[10]	A. H. Hammoud, “Effect of Design and Operational parameters on Jet Pump Performance,” Proceedings of the 4th WSEAS International Conference on Fluid Mechanics and Aerodynamics, Elounda, 21-23 August 2006, pp. 245-252.
[11]	V. P. sharma, S. Kumaraswamy and A. Mani, “Expermental Investigations with Nozzle in a Two Phase Flow Jet Pump,” 2011.