Chapter_6:热机
Chapter 6:热机
Summary
Second Law of themodinamie:Certain direction
Thermal energy reservoirs / heats reservoirs.热库:
- can absorb or reject finite s aments of heat isothermally (等温吸收一定热量)
heat engine 热机
热机效率
Refrigerators 冷机
refrigerator 制冷
- COP (coefficient of performance)
heat Pump 热泵
原理
Kelvin -Planck
- No Heat Engine can produis a net amount of work whole exchanging heat with a sigh reservoirs only.
- 任何热机不能在仅与一个热源进行热交换的情况下产生净功率。
Reversible
- Si both the system and the surroundings can be restored. to. thar original condition:
- 如果系统和周围环境都能恢复到原来的状态。
Cannot cycle
reversible 可逆
Carnot principal
Carnot heat engine
Scale 热力学温标
- 开氏温标(Kelvin scal)
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