THEORETICAL AND EXPERIMENTAL ANALYSIS OF DYNAMIC PROCESSES OF PIPE BRANCH FOR SUPPLY WATER TO THE PELTON TURBINE

Abstract

The paper presents the results of the analysis of pipe branch A6 to feed the ydropower Plant "Peruæica" with integrated action Pelton turbines. The nalysis was conducted experimentally (tensometric) and numerically. The basis f the experimental research is the numerical finite element analysis of pipe ranch A6 in pipeline C3. Pipe branch research was conducted in order to set the xperiment and to determine extreme stress states. The analysis was used to erform the determination of the stress state of a geometrically complex ssembly. This was done in detail as it had never been done before, even in the esign phase. The actual states of the body pipe branch were established, along ith the possible occurrence of water hammer accompanied by the appearance of ydraulic oscillation. This provides better energetic efficiency of the turbine evices.

Keywords

Dates

  • Submission Date2012-05-05
  • Revision Date2012-07-04
  • Acceptance Date2012-07-10

DOI Reference

10.2298/TSCI120505196J

References

  1. Pejoviæ, S., Obradoviæ, D., Transient hydraulic processes and vibrations, Symposium "Modern problems of nonlinear continuum mechanics", Proceedings, Vrnjaèka Banja, Serbia, 1985, pp. 35-77
  2. Pejoviæ, S., et al. Calculations of hydraulic oscillations, International conference 35 years of Turboinstitut, Proceedings, Ljubljanja, Yugoslavia, 1984, pp. 750-766.
  3. Documentation of Material Control and Production Quality Pipe System under pressure at Power Plant „Peruæica"- third phase", Institut of Material, Belgrad, Serbia, 1975.
  4. Stability Analysis of Pipe System III Power Plant „Peruæica", Energoproject Belgrad, 2000.
  5. Power Plant „Peruæica"- Pipe System C3, Periodicaly Examination Report, Lola Institut, Belgrad, Serbia, 2002.
  6. Jovanoviæ, Lj. M., et al., Characteristic Stress State Examination of Pipe System C3 in Power Plant „Peruæica"- Part 9, Mechanical Faculty Podgorica, Montenegro and Mechanical Faculty Niš, Serbia, 2008.
  7. Pejoviæ, S., et al., The influence of the transitional occurrences on the safety of energetic installments, 12th Council of the energy experts of Serbia, Proceedings, Poreè, Yugoslavia, 1981.
  8. Babiæ, M., et al., Overview of a new method for Designing high Efficiency Small hydro power Plants, Thermal Science, 14 (2010), pp. 155-169.
  9. ANSYS - Release 7.0, Theory Reference, Nonlinear Structural Analysis, 2000.
  10. MSC/NASTRAN for Windows V 4.0, Theory Reference, FEMAP, 1998.
  11. ALGOR-SSAP0H, V11.08-3H, Reference 1996.
  12. Pejoviæ, S., Hydraulic shock and transient regimes of hydropower systems, Institut of Mechanical Faculty, Belgrad, 1977.
  13. Karney, B., McInnis, D., Efficient calculation of transient flow in simple pipe network, Journal of Hydraulic Engineering, 118 (1992), 7, pp. 1014-1030.
  14. Borièiæ, B. Z., et al., Improving of method of characteristics for calculation of transient flow in pipe networks, International scientific conference, Unitech '04, Proceedings, 2004, pp. II-465-II-470.
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