0·0000000鲁00000春 0000000000000 第一章基本概念 Chapter 1. Basic Concepts LOGO
LOGO 第一章 基本概念 Chapter 1. Basic Concepts
Contents 1. Thermodynamic system 热力系统 2. Properties of A System 系统的状态参数 3. State and Equilibrium 状态及平衡状态 4. Process and cycles 过程与循环 www.themegallery.com Company Logo
www.themegallery.com Company Logo Contents 1. Thermodynamic System 热力系统 2. Properties of A System 系统的状态参数 3. State and Equilibrium 状态及平衡状态 4. Process and Cycles 过程与循环
8 1.1 Thermodynamic System::::::9:::::::::. 热力系统 1. Systen(热力系统的定义) a quantity of matter or a region in space chosen for study (系统就是指被选做研究对象的物体或空间。) For example: Inlet Boundary System Turbine Output Work I Outlet Surroundings Surroundin 气缸活塞装置 汽轮机 Cylinder-piston equipment Steam turbine www.themegallery.com Company Logo
www.themegallery.com Company Logo §1.1 Thermodynamic System 热力系统 1. System （热力系统的定义 ） A quantity of matter or a region in space chosen for study. （系统就是指被选做研究对象的物体或空间。） For example: 气缸-活塞装置 Cylinder-piston equipment 汽轮机 Steam turbine
00 2. System, Surroundings and boundary 系统、外界和边界 (1) Surroundings(外界) The mass or region outside the system is called surroundings (2) Boundary(边界) The real or imaginary surface that separates the system from its surroundings is called boundary (3) Interactions between system and its surroundings(系统与外界 间的相互作用) There are mass or energy exchange between system and its surroundings. And they must cross the boundaries 系统与外界之间有质量及能量的交换,且都必须穿越边界 www.themegallery.com Company Logo
www.themegallery.com Company Logo (1) Surroundings（外界） The mass or region outside the system is called surroundings. (2) Boundary（边界） The real or imaginary surface that separates the system from its surroundings is called boundary. (3) Interactions between system and its surroundings (系统与外界 间的相互作用） There are mass or energy exchange between system and its surroundings. And they must cross the boundaries. 系统与外界之间有质量及能量的交换，且都必须穿越边界 2. System, Surroundings and boundary 系统、外界和边界
00 (4)Characteristics of boundaries Boundaries are selected subjectively 边界是人为选定的 Boundaries can be fixed or movable 边界可以是固定的,也可以是可移动 Boundaries can be real or imaginary. 边界可以是真实的,也可以是假想的 www.themegallery.com Company Logo
www.themegallery.com Company Logo (4) Characteristics of boundaries ▪ Boundaries are selected subjectively 边界是人为选定的. ◼ Boundaries can be fixed or movable. 边界可以是固定的，也可以是可移动 ◼ Boundaries can be real or imaginary. 边界可以是真实的，也可以是假想的