Systems modelling of a coal-based steam power plant

Abstract

A power plant manager has to minimize operation and maintenance (O&M) expenses while ensuring the reliability, safety, and security of supply in order to remain competitive in the global market. The performance of a steam power plant (SPP) is a function of its basic structure (i.e., layout and design), availability (maintenance aspects), operation ef ciency (trained manpower), safety and security, and other regulatory aspects. Understanding of its structure will help in the improvement of performance, design, maintenance planning, and so on. A mathematical model using the graph theory and matrix method is developed to evaluate the performance of a coal-based SPP. Detailed methodology for developing a system structure graph (SSG), various system structure matrices, and their permanent functions are described for the boiler of an SPP (a macro level system). Structural interconnections between six systems of boiler are considered for developing an SSG of a boiler. To carry out complete structural modelling and analyses of the boiler, system structure graphs of its six systems and their subsystems are presented. A top-down approach for complete analysis of any system is also given.This method can be extended further for modelling a complete SPP by incorporating a turbogenerator macro system and its subsystems, thus converting real-life SPP from a block diagram into a mathematical model for analysis and synthesis of a power plant from different perspectives.

Structural modelling and integrative analysis of microelectromechanical systems product using graph theoretic approach

“…Hence it is not possible to derive/ develop different results as no mathematical operation can be carried out. Mathematical modeling is done using graph theory for systems like power plants, composite industry and manufacturing system (Mohan et al 2003;Prabhakaran et al 2006;Singh and Agrawal 2008). Thus, for modeling of the MEMS product systems it is meaningful to select the graph theory and matrix algebra (Jurkat and Ryser 1966).…”

“…To fill this research gap, a graph theory based MEMS product system model is proposed, which has the capability to consider the interactions/interdependence and connectivities in an integrated way. This tool has so far been applied extensively to analyze complex systems such as power plants (Mohan et al 2003), composite materials (Prabhakaran et al 2006) and manufacturing (Singh and Agrawal 2008), but it has not been used to model and analyze a MEMS product system.…”

Modelling and Analysis of Urban Traffic Noise System Using Algebraic Graph Theoretic Approach

“…This approach which has proven its worth in different disciplines [32][33][34][35] has many benefits, some of which are presented below:…”

Mathematical Modelling of Dynamics of Boiler Surfaces Heated Convectively

“…This is due to the absence of mathematical models that apply to big power units under transient thermal conditions (Krzyżanowski & Głuch, 2004). The existing attempts to model steam superheaters and economizers are based on greatly simplified one-dimensional models or models with lumped parameters (Chakraborty & Chakraborty, 2002;Enns, 1962;Lu, 1999;Mohan et al, 2003). Shirakawa presents a dynamic simulation tool that facilitates plant and control system design of thermal power plants (Shirakawa, 2006).…”