Este applet mostra os processos físicos de uma máquina de Carnot.

O Ciclo de Carnot é uma sequência reversível de quatro estágios consistindo de

1. compressão adiabática

2. expansão isotérmica a temperatura T₂ (alta)

3. expansão adiabática

4. compressão isotérmica a temperatura T₁ (baixa)

5. volta ao passo 1 e continua.

1. Fixe o ponto de partida (Pressão, Volume) do processo de compressão adiabática:

O programa irá mostrar a posição do pistão e informações relacionadas a medida que o mouse se move na região P-V. Clique o mouse para escolher o valor.

2. Set the starting point for the isothermal compression process:

click the mouse button again (within the possible region).

3. Press Start button to start the animation, Press Reset to reset the conditions.

The efficiency of the heat engine will be displayed at top-right corner of P-V curve region.

Different color for the gas volume represent its temperature.

Color of the piston:

Red : contact with heat reservior at high T2 ĄC

Red bar within the gas volume is proportional to heat flow(In).

Green: contact with heat reservior at low T1 ĄC

Red bar within the piston region is proportional to heat flow(Out).

(Total length of the red bar is the maximum heat flow during isothermal expansion process)

Blue : adiabatic processĄC

4. Cp/Cv is the ratio of the specific heat of the gas at constant pressure to that at constant volume.

You can enter any value larger than 1. (Be reasonable, OK!)

It will reset the program automatically.

5. When the mouse is within P-V region (while animation is suspended)

The P, V values will be shown at the top.

Your suggestions are highly appreciated!

E-mail : Please click hwang@phy03.phy.ntnu.edu.tw

AuthorĄGFu-Kwun Hwang, Dept. of physics, National Taiwan Normal University

Last modified : Mon Jan 26 07:05:34 1998