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The efficiency of generators in a power plant decreases as running duration increases. This can also happen to the generator PT. Steam Power Plant. Semen Tonasa Plant is known Boiler Turbine Generator (BTG) BTG II has been operating for approximately 8 years and based on operation data, there decrease generated by genera-tor, when viewed from input current turbine, compared initial this plant. ...

We describe the use of the veriication tools xeve and fc2symbmin on the esterel encoding of a Steam Boiler controller proposed by J.R. Abial. xeve is a veriication tool set dedicated to the analysis of synchronous reactive systems in the form of boolean equations, using the symbolic representation of BDDs for implicit state representation. fc2symbmin is a latter addition to this toolset, and al...

A novel, targeted approach to sootblower activation has been demonstrated recently at a large, T-fired, coal unit. Targeted sootblowing techniques are designed to activate blowers based upon the conditions of the boiler rather than a traditional time and/or sequence based approach. Various approaches have been used in the past to perform targeted sootblowing including neural network based model...

This paper considers an approach to design a controller used for the air-to-fuel ratio (AFR) optimization in the combustion process of a power plant boiler. The optimization of the AFR will reduce the excess air level and improve the combustion efficiency in the boiler system. The combustion improvement indicates boiler operating cost savings. The fuzzy logic controller, which is a method of a ...

Understanding of how and where NOx formation occurs in industrial boiler is very important for efficient and clean operation of utility boilers. This study aims to numerically simulate the NOx formation using a 3D model furnace of an industrial boiler. The studied boiler is a 160 MW and is gas fired with natural gas. The boiler combustion model is a 3D problem that involves turbulence, combusti...

The types of coal are multiplex in domestic small and medium sized boilers, and with unstable ingredients, the method of maintaining the amount of wind and coal supply in a fixed proportion of the wind adjustment does not always ensure the best economical boiler combustion process, the key of optimizing combustion is to modify reasonable proportion of wind and coal online. In this paper, a kind...

Achieving accurate control of main steam temperature is a very difficult task in thermal power plants due to the large process lag (8 to 10 minutes) associated with the superheater system and there exists a deviation of ± 10 °C in closed loop control. A control oriented boiler model and an appropriate optimal control strategy are the essential tools for improving the accuracy of this control sy...

The performance of hot water space heating systems for mild to warm temperate climates is dominated by the efficiency of boiler operation at low load (i.e. below 25% of nameplate capacity). This efficiency is influenced by a number of effects that are poorly represented in common modelling approaches, including static thermal losses from the boiler and distribution system, changes in burner eff...

Quality regulation of the combustion process inside the furnace is the basis of high demands for increasing robustness, safety and efficiency of thermal power plants. The paper considers the possibility of spatial temperature distribution control inside the boiler, based on the correction of distribution of coal over the mills. Such control system ensures the maintenance of the flame focus away...