A Modern Method for Analyzing Thermal Energy System with System State Equation and Analytical Formula of Performance Index

This paper addresses overall performance analysis of coal-fired power unit.From the point of view of system en-gineering,a general steam-water distribution equation of the thermal plant system is presented.This system stateequation is an exact expression combining system topological structure and system properties.Through propermathematic transform,the inner relationship and interaction between the main system and auxiliary system arerevealed and its general form is given.An analytical formula for the heat consumption rate of thermal power plantis one direct fruit of the equation,which greatly facilitate the online analyzing and optimizing of complex thermalsystem.The new approach,with the aid of modern data acquiring technology,is a perfect extension of the tradi-tional analysis method based on the First Law of Thermodynamics.

A modern method for analyzing thermal energy system with system state equation and analytical formula of performance index

This paper addresses overall performance analysis of coal-fired power unit.From the point of view of system en- gineering,a general steam-water distribution equation of the thermal plant system is presented.This system state equation is an exact expression combining system topological structure and system properties.Through proper mathematic transform,the inner relationship and interaction between the main system and auxiliary system are revealed and its general form is given.An analytical formula for the heat consumption rate of thermal power plant is one direct fruit of the equation,which greatly facilitate the online analyzing and optimizing of complex thermal system.The new approach,with the aid of modern data acquiring technology,is a perfect extension of the tradi- tional analysis method based on the First Law of Thermodynamics.