Dynamic Modeling of a Combined-Cycle Plant

Ahluwalia, K. S.; Domenichini, R.

doi:10.1115/89-gt-133

Cited by 7 publications

(10 citation statements)

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“…A digital simulation of the dynamic performance of the combined cycle under different conditions was carried with the help of a FORTRAN computer program described elsewhere (2).…”

Section: Dynamic Simulation Of Combined Cyclementioning

confidence: 99%

Control System for a Combined Cycle

Maderni

Fontana²,

Icardi³

1989

Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration

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The paper describes the organization and the architecture of the digital control system for the combined cycle of FIAT Mirafiori power plant. The choice of functions subject to automatic control is connected to the features required such as: - automatic start-up with steam turbine as prime mover; - operation of the cicle either in parallel or in “island” mode with regard to the national grid; - sliding pressure on the steam generation side, for higher cycle efficiency; In order to take into account interactions between the different equipment in the definition of the control functions, the behaviour of the whole cycle physical variables has been examined by a digital dynamic simulation.

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“…A digital simulation of the dynamic performance of the combined cycle under different conditions was carried with the help of a FORTRAN computer program described elsewhere (2).…”

Section: Dynamic Simulation Of Combined Cyclementioning

confidence: 99%

Control System for a Combined Cycle

Maderni

Fontana²,

Icardi³

1989

Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration

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“…22 The influence of various manipulated variables of the power plant on the power production and main steam temperature of the cogeneration plant was analyzed by Aklilu and Gilani. 23 Ahluwalia and Domenichini 24 and Shin et al 25 modeled and simulated a gas/steam combined cycle power plant to analyze the transient behavior of the plant.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of the boiler drum of a coal-fired thermal power plant

Chandrasekharan

Panda

Swaminathan³

2017

SIMULATION

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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.

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“…Until now various authors studied in field of combined cycle power plants that some of them investigate simulation and dynamic behavior of these power plants: Ahluwalia and his coworker in [5] discusses the dynamic modeling of a gas-fired 60Mw combined cycle power plant; Kim TS in [2] simulates the transient behavior of a dual-pressure bottoming system for a combined cycle power plant. Kim JH in [6] describes models for transient analysis of heavy duty 150Mw gas turbines.…”

Section: Introductionmentioning

confidence: 99%

Transient Modeling of Single-Pressure Combined Cycle Power Plant Exposed to Load Reduction

Daneshvar¹,

Behbahaninia²,

Khazraii³

et al. 2012

IJMO

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Gas/steam combined-cycle is a well-known technology for power generation due to its numerous advantages including high efficiency and low environmental emission. The purpose of this paper was investigation of thermodynamic parameters' behavior of single-pressure system due to load reduction of gas turbine. In this study, dynamic simulation is performed to analyze the transient behavior of a combined-cycle power plant. This simulation was done using mass and energy conservation equations for each component as a control volume. Governing equations set was solved by forward finite difference method and the results were illustrated by some figures. For validation of this transient modeling, the bottoming cycle parameters values at the end of transient operation were compared with the numerical output of the well-known commercial software Thermo flow in steady state mode that acceptable adaption have been seen. Index Terms-Combined-cycle power plant, dynamic modeling, transient behavior, heat recovery steam generator (HRSG)

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Dynamic Modeling of a Combined-Cycle Plant

Cited by 7 publications

References 0 publications

Control System for a Combined Cycle

Control System for a Combined Cycle

Dynamic analysis of the boiler drum of a coal-fired thermal power plant

Transient Modeling of Single-Pressure Combined Cycle Power Plant Exposed to Load Reduction

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