In this paper, the design methodology of a new type of three-dimensional surface return diffuser (3DRD) is presented and described in detail. The main goal was to improve the hydrodynamic performance of the deep-well centrifugal pump (DCP). During this study, a two-stage DCP equipped with two different type diffusers was simulated employing the commercial computational fluid dynamics (CFD) software ANYSY-Fluent to solve the Navier-Stokes equations for three-dimensional steady flow. A sensitivity analysis of the numerical model was performed in order to impose appropriate parameters regarding grid elements number and turbulence model. The flow field and the static pressure distribution in the diffusers obtained by numerical simulation were analyzed, and the diffuser efficiency was defined to quantify the pressure conversion capability. The prototype experimental test results were acquired and compared with the data predicted from the numerical simulation, which showed that the performance of the pump with 3DRD is better than that of the traditional cylindrical return diffuser (CRD) under all operating conditions. The efficiency and single-stage head of the pump with 3DRD have been significantly improved compared with the standard DCP of the same class.

References

1.
Vasil’ev
,
V. M.
, and
Sherstyuk
,
A. N.
, 1997, “
Tests of Stages of a Deep-Well Oil Centrifugal Pump
,”
Chem. Petr. Eng.
,
33
, pp.
583
584
.
2.
Barrios
,
L.
, and
Prado
,
M. G.
, 2011, “
Experimental Visualization of Two-Phase Flow Inside an Electrical Submersible Pump Stage
,”
ASME J. Energy Resour. Technol.
,
33(4)
, p.
042901
.
3.
Gölcü
,
M.
,
Usta
,
N.
, and
Pancar
,
Y.
, 2007, “
Effects of Splitter Blades on Deep Well Pump Performance
,”
ASME J. Energy Resour. Technol.
,
129
, pp.
169
176
.
4.
Gölcü
,
M.
,
Pancar
,
Y.
, and
Sekmen
,
Y.
, 2006, “
Energy Saving in a Deep Well Pump With Splitter Blade
,”
Energy Convers. Manage.
,
47
(
5
), pp.
638
651
.
5.
Gölcü
,
M.
, 2006, “
Neural Network Analysis of Head-Flow Curves in Deep Well Pumps
,”
Energy Convers. Manage.
,
47
(
7-8
), pp.
992
1003
.
6.
Sun
,
J.
, and
Tsukamoto
,
H.
, 2001, “
Off-Design Performance Prediction for Diffuser Pumps
,”
Proc. Inst. Mech. Eng., Part A
,
215
, pp.
191
201
.
7.
Dyagelev
,
A. I.
, 1965, “
Development and Examination of the High-Efficiency Flow Part of the ÉPN-6 Deep Well Pump
,”
Hydraulic Eng. (in Russian)
,
35
, pp.
45
52
.
8.
Feng
,
J. J.
,
Benra
,
F.-K.
, and
Dohmen
,
H. J.
, 2011, “
Investigation of Periodically Unsteady Flow in a Radial Pump by CFD Simulations and LDV Measurements
,”
ASME J. Turbomach.
,
133
(1), p.
011004
.
9.
Sinha
,
M.
, and
Katz
,
J.
, 2000, “
Quantitative Visualization of the Flow in a Centrifugal Pump With Diffuser Vanes - I: On Flow Structures and Turbulence
,”
ASME Trans. J. Fluids Eng.
,
122
, pp.
97
107
.
10.
Bonaiuti
,
D.
,
Zangeneh
,
M.
,
Aartojarvi
,
R.
, and
Eriksson
,
J.
, 2010, “
Parametric Design of a Waterjet Pump by Means of Inverse Design, CFD Calculations and Experimental Analyses
,”
ASME Trans. J. Fluids Eng.
,
132
(3), p.
031104
.
11.
Goto
,
A.
, and
Zangeneh
,
M.
, 2002, “
Hydrodynamic Design of Pump Diffuser Using Inverse Design Method and CFD
,”
ASME Trans. J. Fluids Eng.
,
124
, pp.
319
328
.
12.
Boncinelli
,
P.
,
Biagi
,
R.
,
Focacci
,
A.
,
Corradini
,
U.
,
Arnone
,
A.
,
Bernacca
,
M.
, and
Borghetti
,
M.
, 2008, “
Bowl-Type Diffusers for Low Specific-Speed Pumps: An Industrial Application
,”
ASME J. Turbomach.
,
130
(3), p.
031013
.
13.
Goel
,
T.
,
Dorney
,
D. J.
,
Haftka
,
R. T.
, and
Shyy
,
W.
, 2008, “
Improving the Hydrodynamic Performance of Diffuser Vanes Via Shape Optimization
,”
Comput. Fluids
,
37
, pp.
705
723
.
14.
Gopalakrishnan
,
S.
, 1999, “
Pump Research and Development: Past, Present, and Future - An American Perspective
,”
ASME Trans. J. Fluids Eng.
,
121
, pp.
237
247
.
15.
Hergt
,
P. H.
, 1999, “
Pump Research and Development: Past, Present, and Future
,”
ASME Trans. J. Fluids Eng.
,
121
, pp.
248
253
.
16.
Shi
,
W. D.
,
Lu
,
W. G.
,
Wang
,
H. L.
, and
Li
,
Q. F.
, 2009, “
Research on the Theory and Design Methods of the New Type Submersible Pump for Deep Well
,”
FEDSM2009
,
1
(
Parts A-C
), pp.
91
97
.
17.
Gulich
,
J. F.
, 2007,
Centrifugal Pumps
,
Berlin Heidelberg, Springer
,
New York
.
18.
ISO 9906
Rotodynamic Pumps-Hydraulic Performance Acceptance Tests-Grades 1 and 2
, 1999, International Standardization Organization, Geneva.
19.
Fluent Inc., 2003,
Fluent User’s Guide
.
20.
Wang
,
F. J.
, 2004,
Computational Fluid Dynamics Analysis-CFD Principles and Application
,
Tsinghua University Press
,
Beijing
.
21.
Gonzalez
,
J.
,
Parrondo
,
J.
,
Stantolaria
,
C.
, and
Blanco
,
E.
, 2006, “
Steady and Unsteady Radial Forces for a Centrifugal Pump with Impeller to Tongue Gap Variation
,”
ASME Trans. J. Fluids Eng.
,
128
, pp.
454
462
.
22.
Celik
,
I. B.
,
Ghia
,
U.
,
Roache
,
P. J.
,
Freitas
,
C. J.
,
Coleman
,
H.
, and
Raad
,
P. E.
, 2008, “
Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications
,”
ASME Trans. J. Fluids Eng.
,
130(7)
, p.
078001
.
23.
Richardson
,
L. F.
, and
Gaunt
,
J. A.
, 1927, “
The Deferred Approach to the Limit
,”
Philos. Trans. R. Soc. London, Ser. A
,
226
, pp.
299
361
.
You do not currently have access to this content.