Prediction of mechanical stresses of single rotor blade of low pressure of Nasiriya power plant steam turbine

Authors

  • Noura A.Essi Department of Mechanical Engineer, College of Engineering, Thi-Qar University ,Thi-Qar ,Iraq
  • Rafid M. Hunnun Department of Mechanical Engineer, College of Engineering, Thi-Qar University ,Thi-Qar ,Iraq
  • Hazim I. Radhi Department of Mechanical Engineer, College of Engineering, Thi-Qar University ,Thi-Qar ,Iraq

DOI:

https://doi.org/10.31663/tqujes.10.1.356(2019)

Keywords:

Steam turbine, rotational load, steam pressure

Abstract

  In this paper, two types of stresses acting on the single rotor blade of low pressure steam turbine for Nasiriya power plant were studied. The first type of stresses  was the stresses due to pressure force on the single rotor blade,  while the second type of stresses  are the centrifugal stresses. The stresses due the pressure force were studied in this paper at three loads (70, 140, 210 MW),  while the pressures acting on the first rotor blade of steam turbine  were 512, 3311.7, 6496.8 Pa respectively .  In addition , the blade was fixed at the root and free at the end, while the rotational speed of blade was 341 rad/sec was applied as rotational load.  The results showed that the rotational load has the greatest effect on the blade. Also the stresses due to rotational load are higher than stresses due to steam pressure at the three loads.

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Published

2019-06-01

Issue

Vol. 10 No. 1 (2019)

Section

Articles

License

Copyright (c) 2019 The Author(s), under exclusive license to the University of Thi-Qar

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Prediction of mechanical stresses of single rotor blade of low pressure of Nasiriya power plant steam turbine. (2019). University of Thi-Qar Journal for Engineering Sciences, 10(1), 71-78. https://doi.org/10.31663/tqujes.10.1.356(2019)