Thermal Economy Analysis For 1050MW Supercritical Thermal Power Unit

Supercritical unit thermodynamic system design,on-site safety,economy,and stable operation of the equipment and thermal system energy saving transformation of important technical support for the theory premise and is the study of thermal system calculation,it has important theory value and practical meaning.Therefore,based on the laws of thermodynamics to choose certain economic analysis method to study thermal system analysis and calculation has important theoretical and realistic significance.Taking guohua jiujiang power plant 1050 mw supercritical unit type 0 high added flexibility tenth level regenerative system as the research object,thermal efficiency of thermal system analysis research.Thermal system based on the basic law of thermodynamics,and through the appropriate simplification and matrix,derived for supercritical unit thermal efficiency of the thermal system analysis of the EEDM equation(matrix equation)-energy efficiency distribution matrix equation,the equation has the advantage of high precision,strong commonality and calculation process is simple,EEDM matrix equation of the matrix expression form and numerical matrix elements and supercritical unit thermal system structure characteristics and the related thermodynamic parameters there is a one-to-one relationship,the matrix at the end of the line element To reheat cycle efficiency of the thermal system,the results consistent with the traditional heat balance calculation.In order to solve the traditional hot economic analysis method is complex in calculation and low precision and poor generality.On the basis of the first thermodynamic law,the use of "analysis" after induction,first analysis of the thoughts,the supercritical unit in the thermal system auxiliary soda composition on thermal economy of influence on the induction to the main system related thermodynamic parameters,the construction of a "fictitious" thermal system,and through theoretical derivation corresponding the general expression of the EEDM equation by MATLAB to solve thermal equipment such as a heater,steam cooler is the local change thermal efficiency.