scholarly journals Improving Thermal Power Plant Efficiency

2020 ◽  
Vol 8 (6) ◽  
pp. 1265-1274

Energy is the most important requirement for the growth and development of a nation since it is the basic necessity for every sector. The most common form of energy used is electricity. Electricity is the form of energy that is used both commercially and non-commercially. Thus, generation of electricity is the most significant requirement. Thermal electric power generation is one of the major methods for generation of electricity. But generation of electricity is it enough. It has to be done in the most effective and efficient manner. Owing to acute importance of electricity, it is important that it is done in the most efficient manner so that losses are minimized, outputs are maximized, optimum utilization of resources is done and reduction in the overall cost of the power plant can be achieved. Such outputs are even more important in the present era where sustainable development has become the most important requirement. The present research will analyze the factors affecting efficiency of a power plant. The study will further analyze the effect of operational practices & choice of fuel on efficiency of thermal power plant and the technologies available for improving the thermal power plant efficiency. The research will analyze the ways to optimize the thermal power plant through review based and theoretical analysis. The present research will be a review based work wherein an in depth analyses of the existing literature will be done. The conceptual model thus formed from the review will then be verified through qualitative analysis using thematic analysis method. The respondents (N=8) will be acclaimed professors and research associates in the field of thermal energy. Based on the findings from the review and qualitative analysis, conclusion will be drawn and discussion will be presented wherein all the research questions will be answered. Finally, the future prospective based on the present research will be presented.

SIMULATION ◽  
2017 ◽  
Vol 93 (11) ◽  
pp. 995-1010 ◽  
Author(s):  
Sreepradha Chandrasekharan ◽  
Rames Chandra Panda ◽  
Bhuvaneswari Natrajan Swaminathan

The subcritical coal-fired boilers of thermal power plants consist of a combustion chamber, economizer unit, drum unit (drum, riser, and downcomer), superheater unit (primary superheater, secondary superheater, and final superheater), and reheater unit. The input and output of these units are highly interactive in nature. The efficiency of the subcritical plants is only around 33%. The efficiency needs to be increased to produce more power for the increasing demand, which can be achieved only by implementing supercritical technology or ultra-supercritical technology. However, the conversion of existing subcritical power plants to supercritical power plants is impossible due to the installation cost. So in order to increase the overall efficiency of the existing subcritical power plants, boilers of such units must be examined in order to find safer operational practices. This paper highlights the mathematical modeling of the economizer unit and drum unit of boiler, which can help in enhancing the performance of the boiler system of the power plant. Mass and energy balances for the integrating boiler units have been formulated using first principle laws. The developed model has then been validated with actual plant data obtained from a 210 MW coal-fired thermal power plant. The performance of the open loop responses of the model are analyzed and are included in the results and discussion of the paper. The model provides support for level, pressure, and temperature measurements and predictions. The effect of changes in the parameters of the boiler are studied and discussed in detail.


2012 ◽  
Vol 58 (4) ◽  
pp. 351-356
Author(s):  
Mincho B. Hadjiski ◽  
Lyubka A. Doukovska ◽  
Stefan L. Kojnov

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.


2013 ◽  
Vol 12 (2) ◽  
pp. 337-342 ◽  
Author(s):  
Firuta Goga ◽  
Roxana Dudric ◽  
Calin Cormos ◽  
Florica Imre ◽  
Liliana Bizo ◽  
...  

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