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Connecting rod

Insulation^

Connecting rod

Step 2

O J Step 3

Step 4

Figure 5.12. P-V diagram for helium gas engine operating in Caruot cycle. Step 1—Isothermal heat intake at temperature Tn. Step 2—Adiabatic temperature decrease to Tc. Step 3—Isothermal heat discharge at temperature Tc. Step 4—Adiabatic temperature increase to T„.

Step 2

O J Step 3

Step 4

Figure 5.12. P-V diagram for helium gas engine operating in Caruot cycle. Step 1—Isothermal heat intake at temperature Tn. Step 2—Adiabatic temperature decrease to Tc. Step 3—Isothermal heat discharge at temperature Tc. Step 4—Adiabatic temperature increase to T„.

some ice) is placed at the uncovered end. Thus the flame and the ice serve as the high-temperature and low-temperature reservoirs, respectively. For adiabatic operation, the flap is closed, thereby completely thermally insulating the engine.

The function of the flywheel is to serve as the output of converted energy from the engine, in this case mechanical rotational kinetic energy. Thus when work is done by the engine, as the gas expands the work appears as an increase in the rotational kinetic energy of the flywheel. Similarly, some of the rotational kinetic energy of the flywheel can be used to push the piston back and compress the gas, thereby doing work on the engine.

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