| Heat recovery steam generation(HRSG) is of great significance to the capability of combined gas-steam cycle,which is developing rapidly recently.The status quo of HRSG is discussed,including the arrangement of heating surfaces,flow characteristics of flue gas,the optimization of thermodynamic parameters,start-up and variable load operation.The deficiencies in development and investigation are pointed out.This paper can provide reference for the development and optimizing design of HRSG. |