Failure Analysis of PRDS Pipe in a Thermal Power Plant Boiler

2016 ◽  
Vol 99 (2) ◽  
pp. 233-238 ◽  
Author(s):  
Debashis Ghosh ◽  
Subrata Ray ◽  
Jiten Mandal ◽  
Nilrudra Mandal ◽  
Awdhesh Kumar Shukla
Keyword(s):  
Power Plant ◽  
Failure Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Power Plant Boiler ◽  
Plant Boiler

Failure Investigation of Radiant Platen Superheater Tube of Thermal Power Plant Boiler

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
D. Ghosh ◽  
S. Ray ◽  
A. Mandal ◽  
H. Roy
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Metallographic Analysis ◽  
Premature Failure ◽  
Superheater Tube ◽  
Power Plant Boiler ◽  
Super Heater ◽  
Cause Of Failure ◽  
Plant Boiler

AbstractThis paper highlights a case study of typical premature failure of a radiant platen superheater tube of 210 MW thermal power plant boiler. Visual examination, dimensional measurement and chemical analysis, are conducted as part of the investigations. Apart from these, metallographic analysis and fractography are also conducted to ascertain the probable cause of failure. Finally it has been concluded that the premature failure of the super heater tube can be attributed to localized creep at high temperature. The corrective actions has also been suggested to avoid this type of failure in near future.

scholarly journals Behaviour of Thermal Power Plant Boiler Support Steel Structure under Seismic Excitations

2019 ◽  
Vol 8 (1) ◽  
pp. 74-80
Author(s):  
R. Arun Kumar . ◽  
C. Umarani .
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Time History ◽  
Steel Structure ◽  
Mode Shapes ◽  
Seismic Excitations ◽  
Static And Dynamic Analysis ◽  
Power Plant Boiler ◽  
Plant Boiler

Static and dynamic analysis of a thermal power plant boiler support steel structure is carried out to study its behaviour and responses. Non-Linear Time History Analysis (NLTHA) method is adopted to study the behaviour and response of the structure in addition with Equivalent Static Analysis (ESA) and Response Spectrum Analysis (RSA) methods using SAP2000 software application. Though NLTHA method is not used extensively in Indian boiler support structure design practices, in the present study, an attempt is made to study about the realistic behaviour and performance of boiler support steel structure using NLTHA. Three different ground motions are used for analysing the boiler support steel structure with compatible scale factors and during the analysis, behaviour of the structure under different seismic excitations are usually compared in terms of [5] load-deflection, moment-rotation, moment-curvature and stress-stain relationships. Hence it is found that NLTHA method provides more accurate and dynamic results compared to the ESA and RSA methods. Various seismic demand parameters like mode shapes, displacements, drifts, base shear forces, floor accelerations and floor response spectra curves are presented in the results to understand the behaviour and response of the boiler support steel structures during the seismic excitations.

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