Thermodynamic Modeling and Validation of a 210-MW Capacity Coal-Fired Power Plant

Abstract

This paper presents the thermodynamic modeling and validation of a 210-MW subcritical coal-fired power plant situated in North India. In the era of high computing facilities available, modeling and simulation have become a very pertinent tool for design and development. As such, the objective of the present work is not to enhance the thermal conversion efficiency, but to represent the thermal system in a simplistic yet functional manner. The thermal performance module consists of the following main sections such as steam boiler, economizer, superheater, reheater, steam turbine, condensate extraction pump, boiler feed pump, feedwater heaters and condenser. Thus, a semi-empirical module has been developed to predict thermal performance of coal-fired power plant. It includes the mass balance, energy balance, thermodynamic property relations for working substance followed by empirical correlations for steam bled pressure and thermodynamics of a steam power cycle. By using the MATLAB calculation tool, a process-based computer program of the coal-fired power plant has been successfully validated for thermal efficiency, steam flow rate and coal consumption rate at wide plant load range. The predictions were compared with operating data of 210-MW thermal power plant at different power output levels. The predicted results agree with plant operating data.

Dynamic Modeling and Simulation of a Subcritical Coal-Fired Power Plant under Load-Following Conditions

“…Steady-state and data-driven contributions to subcritical power plant modeling have been reported to estimate process conditions and various interactions. − In dynamic modeling for subcritical coal-fired power plants, various contributions, including modeling of a subset of the components of subcritical coal-fired power plants, are available in the literature. This consists of some of the components in either the fire, water, and/or steam side. − Work on configurations for natural and forced convection operations in the evaporative loop is also available. , The need for dynamic modeling has also been highlighted for control development. ,, More detailed modeling of the main components in the fireside, steamside, and waterside has also been presented …”

Data modelling and simulation control of steam heat circulation system in coal-fired power plant

“…It can get 5% MCR per minute in practical applications, which is far superior to the regulation characteristics of conventional coal-fired units at 2% MCR per minute. In the future smart grid, this adjustment capability will play an essential role in smoothing the volatility of RES such as wind [1].…”

Comparison of Energy Flow Stream and Isentropic Method for Steam Turbine Energy Analysis

“…The scientific and professional literature offers many different energy and numerical analysis of entire steam power plants as presented by Erdem et al [1], Mitrović et al [2], Kumar et al [3], Noroozian et al [4], Ahmadi and Toghraie [5] and Uysal et al [6]. The energy and numerical analysis can also be applied to a research of steam power plant components, such as steam turbines [7], [8], steam condensers [9], steam generators [10,11] and air heaters for steam generators [12], feed water heaters [13], gland steam condensers [14] and many others. An investigation of combined power plants [15], CHP (Combined Heat and Power) plants [16], solar power plants [17] or power plants, which use solar assisting [18], can also be performed by various types of energy analysis methods.…”