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Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.66 [2007] >
JSIR Vol.66(07) [July 2007] >
| Title: | Analysis of transient thermal cycling for life assessment of steam turbine rotors |
| Authors: | Prasad, Y Maruthi
Shukla, A K
Roy, Amitava |
| Keywords: | Creep
Fatigue
Life assessment
Steam turbine rotor
Thermal stress |
| Issue Date: | Jul-2007 |
| Publisher: | CSIR |
| IPC Code: | F01B21/04 |
| Abstract: | Transient temperatures and stresses in the rotor during start-up and shut down cycles were evaluated using finite
element analysis. Thermal gradients developed during thermal transients are the key source of stress generation in the rotor.
Stress-strain response during thermal transients revealed non-proportional loading at the rotor surface and proportional loading
in the rotor. Life assessment methodology of turbine rotors subjected to thermal power plant operating conditions is presented.
Predictions from linear damage summation are compared with the results of nondestructive study of an actual steam turbine
rotor. |
| Page(s): | 536-544 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.66(07) [July 2007]
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