Simulation of centrifugal compressors performance is widely performed by one-dimensional analysis because of relatively reliable results by this method, considering some major modifications in gas properties and analysing compression stages. The compressed medium is mixture of various gasses with different thermodynamic properties and molecular weights, which lead to considerable changes owing to different process and site conditions in many oil and gas applications. The mentioned characteristic changes are not considered in traditional performance prediction methods and result in large errors during estimation. In this paper, modified two-zone and one-dimensional models are presented, in which major variations are considered and numerical solutions are employed to successfully achieve satisfactory performance estimation. Results are verified with experimental data for stage pressure ratios and rotor efficiencies. These comparisons show that the proposed one-dimensional and two-zone models are revised in comparison to conventional techniques and effectively simulate compressors performance.
RodgersC., ‘Mean line performance prediction for radial inflow turbines’Small high pressure ratio turbines VKI Lecture Series, 1987-07, 1987.
2.
BoyceM. P., ‘Principles of operation and performance estimation of centrifugal compressors’ In Proceedings of the 22nd Turbomachinery Symposium, Dallas, Texas, September 1993, pp. 161–178.
3.
HashemiE.PezeshkpourP., ‘Multi-stage centrifugal compressors and defining the optimum pressure ratio according to temperature limitations’ In Proceedings of the ASME Power 2008, Orlando, Florida, USA, 2008.
BrownR. N., Compressors selection and sizing (USA: Gulf Professional Publishing2005).
6.
GreshK. K., ‘Field analysis of multi-section compressors’Hydrocarbon processing (Jeannette, Pennsylvania: Flexware Inc.1998).
7.
Al-SuhaibaniZ., Flow analysis and modeling of centrifugal compressor impellers. PhD Thesis, Michigan State University, USA, 2005.
8.
HashemiE.KarimiM., ‘Improvement of centrifugal compressors performance prediction with the modified one dimensional analysis’ In Proceedings of the International Conference on Compressors and their systems, 2009 (Professional Engineering Publishing, Bury St Edmunds and London).
9.
BibaY.MenegayP., ‘Inverse design of centrifugal compressor stages using a mean line approach’Int. J. Rotat. Mach.10 (2004): 75–84.
10.
HorlockJ. H., ‘Review of losses and efficiencies in axial flow turbines’Int. J. Mech. Sci.2 (1960): 48–75.
11.
WhitfieldA., Design of radial turbomachines (UK: Longman Group1990).
JohnsonM. W.MooreJ., ‘The development of wake flow in a centrifugal compressor’ASME J. Eng. Power102 (1980): 383–390.
14.
JapikseD., ‘Assessment of single- and two-zone modeling of centrifugal compressors’ Studies in component performance: Part 3. ASME paper 85-GT-73, 1985.
FrigneP.van den BraembusscheR., ‘One-dimensional design of performance maps for centrifugal compressors taking into account flow separation in the impeller’ Technical Note 129, Von Karman Institute for Fluid Dynamics, Turbomachinery Department, June 1978.
17.
RodgersC., ‘Efficiency of centrifugal compressor impellers’ In Proceedings of the AGARD Conference on Centrifugal compressors, flow phenomena and performance, Brussels, 1980, pp. 22. 1–22.14, paper no. 282.
18.
BrenneL.BjorgeT.GilarranzJ. L.KochJ. M.MillerH., ‘Performance evaluation of a centrifugal compressor operating under wet gas conditions’ In Proceedings of the Thirty-Fourth Turbomachinery Symposium, Houston, Texas, USA, 2005 ISO 5389. Turbo compressors—performance test code 2nd edition, (Switzerland: International Standards Organization 2005) ASME PTC 10. Compressors and exhausters (New York, USA: Ame-rican Society of Mechanical Engineers 1997).
19.
StodolaA., Steam and gas turbines (New York, USA: McGraw-Hill1945).
20.
StanitzJ. D., ‘Some theoretical aerodynamic investigations of impeller in radial and mixed-flow centrifugal compressors’Trans. ASME74 (1952): 437–476.
21.
WiesnerF. J., ‘A review of slip factors for centrifugal impellers’Trans. ASME J. Eng. Power89 (1967): 558–572.
22.
PaengK. S.ChungM. K., ‘A new slip factor for centrifugal impellers’Proc. IMechE, Part A: J. Power and Energy215A5 (2001): 645–649.DOI: 10.1243/0957650011538776.
23.
BackströmT. W., ‘A unified correlation for slip factor in centrifugal impellers’J. Turbomach.128 (2006): 1–11.
24.
MorozL.GovorusñhenkoY.PagurP.RomanenkoL., ‘Integrated conceptual design environment for centrifugal compressors flow path design’ In Proceedings of the IMECE2008, Boston, USA, 2008.
25.
RautaheimoP.SalminenE.SiikonenT., ‘Nume-rical simulation of the flow in the NASA low-speed centrifugal compressor’Int. J. Turbo Jet Eng.20 (2003): 155–170.
SandbergM. R., ‘Equation of state influences on compressor performance determination’ In Proceedings of the Thirty-Fourth Turbomachinery Symposium, Houston, Texas, 2005.
28.
KumarS. K.KurzR.O'ConnellJ. P., Equations of state for compressor design and testing. ASME paper 99-GT-12, 1999.
29.
AngusS.ArmstrongB.ReuckK. M., IUPAC. International thermodynamic tables of the fluid state (Oxford, UK: Pergamon Press1976).
30.
VargaftikN. B., Tables on thermophysical properties of liquids and gases2nd edition, (Washington: Hemisphere Publishing Co. 1975).
