1. 交流电机电枢绕组结构 • 三相对称、均匀分布 • 特殊的两相正弦分布 2. 交流电机电枢绕组产生的磁势 • 对称多相分布绕组流过对称交流电流 • 同心式分布或集中绕组流过直流电流 3. 交流电机绕组的气隙磁场 4. 交流电机绕组的感应电势 5. 谐波电势及其削弱或消除的方法

绪论 制冷的作用 制冷发展史 突破性的进展和挑战 1.1 制冷方式： （1）蒸气压缩式制冷 （2）蒸气吸收式制冷 （3）蒸气喷射式制冷 （4）吸附式制冷 （5）热电制冷 （6）空气膨胀制冷 （7）涡流管制冷 （8）脉管制冷 1.2 制冷的基本热力学原理

上海交通大学：《heat pumping processes and systems》课程资源（教学资料）Refrigeration I

上海交通大学：《heat pumping processes and systems》课程资源（教学资料）Refrigerants

上海交通大学：《heat pumping processes and systems》课程资源（教学资料）Refrigerants

上海交通大学：《heat pumping processes and systems》课程资源（教学资料）Kap-3-one stage

• Multiphase flow covers a vast field, cross different scales, different engineering disciplines, different application contexts, and different analytic approaches. • Therefore one course for the fundamental understanding of , a unifying approach to the multiphase flow

• Gas bubbles can grow or collapse in flow • Introducing many important phenomena • General assumptions in this chapter – Flow far away from bubble is at rest – Spherical symmetric bubble – Single bubble

Introduction • Forces on particle can radically modified them, and in turn to change the interaction between particles and continuous phase. • This chapter consider the translation of disperse phase consists of deformable particles

上海交通大学：《多相流和传热 Multiphase flow and heat transfer》课程教学资源_Chapter 2 Single particle motion