Failure Analysis of Boiler Water Wall Tube: A Case Study from Thermal Power Plant

2022 ◽  
Author(s):  
Debashis Ghosh ◽  
Himadri Roy ◽  
Atanu Saha ◽  
Chidambaram Subramanian
Keyword(s):  
Power Plant ◽  
Failure Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Boiler Water ◽  
Water Wall ◽  
Water Wall Tube

Failure Analysis of the Corroded Water Wall Tube in a 50MW Thermal Power Plant

2018 ◽  
Vol 37 (9-10) ◽  
pp. 995-999 ◽  
Author(s):  
Guohua Yang ◽  
Yuanbo Gou ◽  
Xinshi Liu ◽  
Xiaoming Zhang ◽  
Tuo Zhang
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Energy Dispersive Spectrometer ◽  
Thermal Power ◽  
Effective Means ◽  
High Temperature Corrosion ◽  
Boiler Water ◽  
Water Wall ◽  
Water Wall Tube

AbstractHigh temperature corrosion of the water wall tube in a 50 MW thermal power plant was investigated which caused several boiler accidents. X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS) were used to observe the cross-sectional morphology of the tube and analyze the oxide scales. Results show that the boiler water and the coal quality did not meet the requirements. High temperature corrosion of water wall tubes was attributed to the using of coal which had a higher ash content and lower received lower heating value. Higher dissolved oxygen and incrustation in the boiler water caused serious corrosion at the inner surface of water wall tube, which led to the possibility of decarburization and degradation of the steel. Suitable coal blending and stability of the thermal load were the effective means to prevent the high temperature corrosion of the tube.

Semiparametric Reliability Model in the Failure Analysis of a Coal-Fired Boiler Used in a Thermal Power Plant—A Case Study

2015 ◽  
Vol 27 (3) ◽  
pp. 353-360 ◽  
Author(s):  
Debasis Das Adhikary ◽  
Goutam Kumar Bose ◽  
Dipankar Bose ◽  
Souren Mitra
Keyword(s):  
Power Plant ◽  
Failure Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Reliability Model

Analysis of the causes of leakages and preventive strategies of boiler water-wall tubes in a thermal power plant

2020 ◽  
Vol 110 ◽  
pp. 104381 ◽  
Author(s):  
Song Xue ◽  
Ruidong Guo ◽  
Fengtao Hu ◽  
Kai Ding ◽  
Lv Liu ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Preventive Strategies ◽  
Boiler Water ◽  
Water Wall

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

Thermoeconomic Approach and Optimization of a Solar Thermal Power Plant

2012 ◽  
Vol 232 ◽  
pp. 609-613
Author(s):  
Ali Baghernejad ◽  
Mahmood Yaghoubi
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Production Costs ◽  
Solar Thermal ◽  
Optimum Operating ◽  
Production Plant ◽  
Optimum Operating Condition ◽  
Solar Thermal Power

In the present study, a specific and simple second law based exergoeconomic model with instant access to the production costs is introduced. The model is generalized for a case study of Shiraz solar thermal power plant with parabolic collectors for nominal power supply of 500 kW. Its applications include the evaluation of utility costs such as products or supplies of production plant, the energy costs between process operations of an energy converter such as production of an industry. Also attempt is made to minimize objective function including investment cost of the equipments and cost of exergy destruction for finding optimum operating condition for such plant.

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