Residual Life Estimation of Service Exposed Reheater Tubes in a Boiler of a Thermal Power Plant

2002 ◽  
Vol 13 (2) ◽  
pp. 73-90 ◽  
Author(s):  
A.K. Ray, ◽  
Y. N. Tiwari, ◽  
J.K. Sahu, ◽  
J. Swaminathan, ◽  
S.K. Sinha, ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Residual Life ◽  
Thermal Power ◽  
Life Estimation

Residual Life Estimation of Service Exposed Reheater Tubes in a Boiler of a Thermal Power Plant

ENERGYO ◽  
2018 ◽  
Author(s):  
A.K. Ray ◽  
Y. N. Tiwari ◽  
J.K. Sahu ◽  
J. Swaminathan ◽  
S.K. Sinha ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Residual Life ◽  
Thermal Power ◽  
Life Estimation

scholarly journals Residual life estimation of a thermal power plant component: The high-pressure turbine housing case

2009 ◽  
Vol 13 (4) ◽  
pp. 99-106 ◽  
Author(s):  
Gordana Jovicic ◽  
Vencislav Grabulov ◽  
Stevan Maksimovic ◽  
Miroslav Zivkovic ◽  
Nebojsa Jovicic ◽  
...  
Keyword(s):  
High Pressure ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Residual Life ◽  
Thermal Power ◽  
Estimation Procedure ◽  
High Pressure Turbine ◽  
Plant Component ◽  
Life Estimation ◽  
Turbine Housing

This study focuses on the estimation of residual life of damaged thermal power plant components. The high-pressure turbine housing was chosen as an example of thermal power plant component where, during the years of exploitation, damage appeared in the form of dominant crack. Residual life estimation procedure, based upon experimental and numerical methods has been introduced and applied. Material properties were determined experimentally both at room and operating temperature, while all necessary calculations were performed by the special finite element method, so-called X-FEM. The residual life estimation of the damaged high-pressure turbine housing was performed by applying the Paris's law for crack growth analysis.

Development of Compact Small Punch Creep Testing Equipment

2011 ◽  
Author(s):  
Hajime Watanabe ◽  
Akihiro Kanaya ◽  
Junichi Kusumoto ◽  
Takafumi Tsurui
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Residual Life ◽  
Thermal Power ◽  
Creep Property ◽  
Testing Equipment ◽  
Creep Testing ◽  
Small Punch ◽  
Life Evaluation

Japan has many aged thermal power plant facilities and some boilers in such facilities have been in operation for more than 100,000 hours, so the importance of creep residual life evaluation of components exposed to severe conditions has been increasing. Although creep residual life of such components can be evaluated by destructive methods relatively accurately, they significantly affect the component to be sampled, take a long time to carry out and are high-cost. To solve these problems, Kobe Material Testing Laboratory Co., Ltd. and Kyushu Electric Power Co., Inc. have jointly developed compact-sized and less expensive small punch creep testing equipment for accurate creep residual life evaluation. Outer dimensions of developed equipment are 660W × 335D × 807H (mm); weight is 130kg. Small punch creep test can be conducted by this testing equipment, in order to identify creep property using 8mm diameter and 0.5mm thickness specimens taken from tubes or pipes of thermal power plant facilities, and evaluate remaining life. The testing equipment is expected to improve efficiency and reduce costs to evaluate material characteristics and creep residual life for facilities in power plants and various industries.

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

Nonlinear Trend Analysis of Mill Fan System Vibrations for Predictive Maintenance and Diagnostics

2012 ◽  
Vol 58 (4) ◽  
pp. 351-356
Author(s):  
Mincho B. Hadjiski ◽  
Lyubka A. Doukovska ◽  
Stefan L. Kojnov
Keyword(s):  
Power Plant ◽  
Trend Analysis ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Balkan Peninsula ◽  
Predictive Maintenance ◽  
Nonlinear Trend ◽  
The Subject ◽  
The Given

Abstract Present paper considers nonlinear trend analysis for diagnostics and predictive maintenance. The subject is a device from Maritsa East 2 thermal power plant a mill fan. The choice of the given power plant is not occasional. This is the largest thermal power plant on the Balkan Peninsula. Mill fans are main part of the fuel preparation in the coal fired power plants. The possibility to predict eventual damages or wear out without switching off the device is significant for providing faultless and reliable work avoiding the losses caused by planned maintenance. This paper addresses the needs of the Maritsa East 2 Complex aiming to improve the ecological parameters of the electro energy production process.

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