DEVELOPMENT AND RESEARCH OF VIBRATION IRREGULARITY IN PIPING SYSTEMS AND PATHS OF TURBOMACHINES ON THE BASIS OF MATHEMATICAL MODELING
https://doi.org/10.30724/1998-9903-2019-21-1-2-93-110
Abstract
Abstract: The present paper presents a comparison of the performance of different flow conditioners. The numerical investigation is carried out using ANSYS FlUENT. Flow conditioners efficiency is evaluated on the basis of the ability of these devices to produce a uniform velocity profiles with low pressure loss under high-level disturbance conditions, such as those produced by gate and ball valves. A new flow conditioner device, which consists of two perforated conic plates has been designed, and demonstrated a high performance within a short distance downstream of the flow conditioner.
About the Authors
A. E. Zaryankin
Moscow Power Engineering Institute
Russian Federation
Russian Federation
Arkadiy E. Zaryankin – Power Engineering Institute
Moscow
T. Padashmoghanlo
Moscow Power Engineering Institute
Russian Federation
Russian Federation
Tohid Padashmoghanlo– Power Engineering Institute
Moscow
References
1. Kostyuk A.G., Kumenko A.I., Nekrasov A.L. and et.al. An experimental analysis of pressure pulsations in the steam admission elements of a turbine installation // Thermal Engineering. 2000. Vol. 47, No. 6. P.529–537 (In Russian).
2. Kasilov V.F., Kalinin S.V., Gvozdev V.M. and et.al. A study of the vibrational activity of the control valves in the steam admission system of the HP cylinder in a K-200-130 steam turbine // Thermal Engineering. 2001. Vol. 48, No. 11. P.890–898 (In Russian).
3. Zaryankin V.A. Aerodynamic methods for increasing the efficiency and reliability of heat engineering elements and equipment in power thermal plants : Ph.D. thesis. Moscow Power Engineering Institute. 2000. 190 p (In Russian).
4. Zaryankin A.E., Padashmoghanlo T., Osipov S.K. and Istomin S.A. Computational and analytical investigation of ejector tee junctions / TYAZHELOE MASHINOSTROENIE. 2018. No. 4. P.28–35 (In Russian).
5. VORTAB flow conditioners: http://www.vortab.com/ / (accessed: May 2018)
6. Cheng flow conditioners: http://www.chengfluid.com/flow_conditioner / (accessed: May 2018)
7. SDI flow conditioner: https://www.badgermeter.de/en / (accessed: May 2018)
8. Low headless flow conditioner model 3000: http://westfallstaticmixers.com/ / (accessed: May 2018)
9. Laws E.M. Flow conditioning – a new development // Flow Measurement and Instrumentation. 1990. Vol. 1, Issue. 3. P.165–170.
10. Akashi K., Watanabe H., Koga. K. Development of new flow rectifier for shortening upstream straight pipe length of flow meter // In Proc. IMEKO Symp.1979. P.279.
11. Spearman E.P., Sattary J.A., Reader-Harris M.J. Comparison of velocity and turbulence profiles downstream of perforated plate flow conditioners // Flow Measurement and Instrumentation. 1996. Vol. 7, Issue. 3–4. P.181–199.
12. Frattolillo A., Massarotti N. Flow conditioners efficiency a comparison based on numerical approach // Flow Measurement and Instrumentation. 2002. Vol. 13, Issue. 1–2. P.1–11.
13. Laribi B., Wauters P., Youcefi A. Numerical Investigation of Contribution of Three Flow Conditioners in the Development and Establishment of Turbulent Flows //ASME 2010 3rd Joint US- European Fluids Engineering Summer Meeting. 2010. Vol. 2. P.233–238.
14. Melda Özdinç Çarpınlıoğlu, Emrah Özahi. Laminar flow control via utilization of pipe entrance inserts (a comment on entrance length concept) // Flow Measurement and Instrumentation. 2011. Vol. 22, Issue. 3. P.165–174.
15. Moloney F., Wickramaratne C., Almatrafi E. and et.al. Flow Conditioning Techniques for a Bent Pipe in a Constrained Latent Heat Storage System // ASME 2016 International Mechanical Engineering Congress and Exposition. 2016. Vol. 7.: Fluids Engineering. pp. V007T09A010.
16. Zaryankin A.E., Rogalev N.D., Rogalev A.N. and et.al. New Flow Conditioners as a Means of Enhancing the Reliability and Efficiency of Power Equipment // Modern Applied Science. 2016. Vol. 10, Issue. 2. P.172–184.
17. Sudo K., Sumida M., Hibara H. Experimental investigation on turbulent flow in a circular- sectioned 90-degree bend // Experiments in Fluids. 1998. Vol. 25, No. 1. P.42–49.
18. Kim J., Yadav M., Kim S. Characteristics of Secondary Flow Induced by 90-Degree Elbow in Turbulent Pipe Flow // Engineering Applications of Computational Fluid Mechanics. 2014. Vol. 8, Issue. 2. P.229–239.
19. Dutta P., Saha S.K., Nandi N., Pal N. Numerical study on flow separation in 90° pipe bend under high Reynolds number by k-ε modelling // Engineering Science and Technology, an International Journal. 2016. Vol. 19, Issue. 2. P.904–910.
20. Abu-Taleb SH. A. Investigation and improvement of wide – angle diffusers in order to increase the efficiency of heat engineering equipment and elements of steam turbines : Ph.D. thesis. Moscow Power Engineering Institute. 1994. 149 p (In Russian).
Review
For citations:
Zaryankin A.E., Padashmoghanlo T. DEVELOPMENT AND RESEARCH OF VIBRATION IRREGULARITY IN PIPING SYSTEMS AND PATHS OF TURBOMACHINES ON THE BASIS OF MATHEMATICAL MODELING. Power engineering: research, equipment, technology. 2019;21(1-2):93-110. (In Russ.) https://doi.org/10.30724/1998-9903-2019-21-1-2-93-110
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