Statistical modeling of an integrated boiler for coal fired thermal power plant

Abstract

The coal fired thermal power plants plays major role in the power production in the world as they are available in abundance. Many of the existing power plants are based on the subcritical technology which can produce power with the efficiency of around 33%. But the newer plants are built on either supercritical or ultra-supercritical technology whose efficiency can be up to 50%. Main objective of the work is to enhance the efficiency of the existing subcritical power plants to compensate for the increasing demand. For achieving the objective, the statistical modeling of the boiler units such as economizer, drum and the superheater are initially carried out. The effectiveness of the developed models is tested using analysis methods like R2 analysis and ANOVA (Analysis of Variance). The dependability of the process variable (temperature) on different manipulated variables is analyzed in the paper. Validations of the model are provided with their error analysis. Response surface methodology (RSM) supported by DOE (design of experiments) are implemented to optimize the operating parameters. Individual models along with the integrated model are used to study and design the predictive control of the coal-fired thermal power plant.

First and second-order models for the vortex length in cylinder-on-cone cyclones based on large-eddy simulations

“…Chandrasekharan et al [20] used response surface methods to study and optimize the performance of coal fired thermal power plants as functions of the operating variables. They combined their overall model with models for the individual processing units for design purposes.…”

A novel approach of NPSO on dynamic weighted NHPP model for software reliability analysis with additional fault introduction parameter

“…In general, NHPP growth model with imperfect debugging ([7], [17], [18]) is one of the best kind of analytical framework, which is used to approximate mean value function (MVF) of exponential growth, considering that the failure occurrence is up to a certain point of time. During the past three decades, the NHPP growth curve model has been applied in different researches such as: evaluation of agriculture, exchange of transportation systems, development of discoveries, transformation of aircraft industry, the evolution of telecommunication systems and statistical modeling [19]. Therefore, it is difficult to find an area of system evolution, where NHPP growth curves analysis has yet not been applied upon.…”

Bir Termik Enerji Santralinde Ana Buhar Sıcaklığı Parametresinin YSA ve ARIMA Yöntemleriyle Modellenmesi ve Kestirim Performanslarının Araştırılması

“…Buhar türbinindeki çürük buhar kondenser ünitesine gelerek yoğunlaşır, tekrar su fazına dönüştürülür ve besleme suyu pompası ile tekrar kazan ünitesine gönderilir. Böylelikle, bir döngü içerisinde devam eden bu su ve buhar dönüşümleri ile sürekli olarak bir elektrik enerjisi üretimi gerçekleştirilmiş olur Chandrasekharan et al 2017)…”

“…Buhar daha sonra kızdırıcıya aktarılır ve su, dönüşüm için tamburun içinde dolaşır. Böylece doymamış buhar, superheater ünitesinde doymuş buhara dönüştürülür(Chandrasekharan et al 2017). Bir termik santrale ilişkin temel ekipmanlar ve proses akış şeması aşağıdaki şekilde verilmektedir.Formülde L ifadesiyle gösterilen ısı kayıplarını genel olarak suyun baharlaşma nedeniyle kaybı, iyi yanmamış atık gaz, yakma havası ve yakıttaki nemlenme kaybı, termal radyasyon, yanmayan yakıt külü kaybı ve hesaplanamayan diğer kayıplar ifade etmektedir.…”