Investigation of Microstructure and Mechanical Properties of A335 P11 Main Steam Pipe in Stesen Janaelektrik Jambatan Connaught Power Plant, Malaysia

2018 ◽  
Vol 71 (10) ◽  
pp. 2527-2540 ◽  
Author(s):  
Taoheed Olohunde Sadiq ◽  
Lukmanulhakim Mohd Daud ◽  
Jamaliah Idris
Keyword(s):  
Mechanical Properties ◽  
Power Plant ◽  
Microstructure And Mechanical Properties ◽  
Steam Pipe ◽  
Main Steam

Residual life prediction of service exposed main steam pipe of boilers in a thermal power plant

2000 ◽  
Vol 7 (5) ◽  
pp. 359-376 ◽  
Author(s):  
A.K. Ray ◽  
Y.N. Tiwari ◽  
R.K. Sinha ◽  
S. Chaudhuri ◽  
R. Singh
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Life Prediction ◽  
Residual Life ◽  
Thermal Power ◽  
Steam Pipe ◽  
Residual Life Prediction ◽  
Main Steam

The Steam Pipe Network Mathematical Modeling and Flow Field Analysis of Zibo Power Plant

2014 ◽  
Vol 960-961 ◽  
pp. 1081-1085
Author(s):  
Dong Yang ◽  
Xiao Lu
Keyword(s):  
Power Plant ◽  
Velocity Vector ◽  
Field Analysis ◽  
Pipe Network ◽  
Before And After ◽  
Long Time ◽  
Flow Field Analysis ◽  
Steam Pipe ◽  
Main Steam ◽  
Steam Pipes

As Zibo power plant original steam pipes for a long time to run, the strength decreased and resistance was large, transformation was proposed to optimize. A mathematical model of the main steam pipe network was established to analysis changes of temperature, pressure and velocity vector before and after transformation. After transformation, the loss was significantly reduced,so transformation successfully achieve the optimization, adjustment and analysis functions of the main steam pipe network.

Design and Test of an Extensometer for Strain Monitoring of High Temperature Pipelines

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
X. Y. Hu ◽  
J. H. Jia ◽  
N. Wang ◽  
X. M. Xia ◽  
Z. D. Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Room Temperature ◽  
Design Procedure ◽  
High Accuracy ◽  
Deformation Monitoring ◽  
Strain Monitoring ◽  
Site Monitoring ◽  
Steam Pipe ◽  
Main Steam

In this paper, an extensometer was specifically designed for online deformation monitoring of high temperature pipes and its applicability was verified experimentally. The design procedure and the installation of the extensometer were described in detail. Experiments were carried out to prove the accuracy and the reliability of the extensometer. The laboratory test at room temperature was performed. The reliability of the extensometer at high temperature was validated by on-site monitoring of the deformation of a main steam pipe operating at 540 °C in a power plant. It was demonstrated that the designed extensometer has a high accuracy and an excellent reliability for measurement of the deformation of the high temperature pipes.

scholarly journals Microstructure and Mechanical Properties of an Austenitic Heat-Resistant Steel after Service at 570 °C and 25.4 MPa for 18 Years

2021 ◽  
Author(s):  
Xu Yang ◽  
Chengwei Yu ◽  
Xisheng Yang ◽  
Kai Yan ◽  
Gong Qian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Power Plant ◽  
Impact Toughness ◽  
Grain Boundary ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Microstructure And Mechanical Properties ◽  
The Impact

AbstractMicrostructure and mechanical properties of an austenitic heat-resistant steel (12Cr18Ni12Ti) serviced in a supercritical power plant at 570 °C/25.4 MPa for 160,000 h were investigated. The results show that the hardness and the tensile strength did not decrease; however, the impact toughness was remarkably reduced. The TiC precipitate shows excellent thermostability; for example, it hardly grew up, and no big M23C6 carbides were found. However, large Fe, Cr-rich σ-phase was doomed to precipitate along grain boundary, which should be responsible for the reduced toughness. The growth of σ-phase was observed to have an interaction with the preexisted carbides.

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