Quantitative study of thermodynamics system(I):model and basic concepts
Yang Liu · 2011
Thermodynamics System Transformation,which can tell the system change between the former type and the new one,dues to heat and mass transfer in system,and cannot be judged in Classical Thermodynamics System.This paper puts forward a new Thermodynamics System which can classify Thermodynamics System Transformation.Drawn on modern thermodynamics and shell theory,the new thermodynamics system model includes three parts: Interior,Border(Shell) and Exterior.In this system,Shell is composed of the Wall and Gate,and the Wall is insulated.What's more,the concepts of shell open ratio and exchange ratio of the new thermodynamics system are presented,and their relationship is also examined.Based on the new thermodynamics system,we conclude that information can be seen as the same as mass and energy.Thus,in this way the exchanging material between the new system and the exterior can be included of mass,energy and information.Using material flow as an example,we deduce the stability criterion for system(the criterion of shell open ratio) which can tell change of Thermodynamics System Transformation from the former one to the new type.The work gives a development and improvement of classical thermodynamics theory,and also provides theoretical basis for accurate analysis of heat mass transfer process in thermodynamics system.