摘要
热力学系统动态变化过程是由系统与外界的热质传递过程引起的,但传统热力学并不能完全对此作出判断.借鉴现代热力学和界壳理论,提出一种新的热力学系统模型,由系统内部、边界(界壳)和外界组成,其中边界(界壳)由界壁和界门组成,界壁是"绝缘"的;给出热力学系统边界开放度、边界交换率概念,讨论边界开放度与边界交换率关系;在新的热力学系统中,提出将"信息"作为与物质和能量等同的物理量,热力学系统与外界传递和交换的物量包括物质、能量和信息.以热力学系统物质流交换过程为例,推导系统稳定条件判据(边界开放度判据).该成果对经典热力学理论有所完善和补充,为精确分析热力学系统热质传递过程提供理论依据.
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.
出处
《大庆石油学院学报》
CAS
北大核心
2011年第1期96-99,121,共4页
Journal of Daqing Petroleum Institute
基金
国家自然科学基金项目(51051002
50776014)
黑龙江省教育厅科学技术研究资助项目(11541004)
关键词
热力学系统
定量化模型
开放度
交换率
稳定性判据
thermodynamics system
quantitative model
shell open ratio
exchange ratio
stability criterion
