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  • pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY
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pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY

VP2.6.2.4
pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY
pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY pV diagram of the hot air engine (P2.6.2.4)
pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY

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Description

In the experiment P2.6.2.4, the pV diagram of the hot air engine as a heat engine is recorded using the computer-assisted measured value recording system CASSY. The pressure sensor measures the pressure p in the cylinder and a rotary motion sensor measures the position s, from which the volume is calculated, as a function of the time t. The measured values are displayed on the screen directly in a pV diagram. In the further evaluation, the mechanical work performed as piston friction per cycle

and from this the mechanical power

are calculated and plotted in a graph as a function of the no-load speed.

Components of equipment sets

1 388182 Hot-air engine LD
1 56211  4  U-core with yoke LD
1 562121  4  Clamping device with spring clip LD
1 56221 Mains coil, 500 turns LD
1 56218  8  Coil, 50 turns, extra-low voltage LD
1 524013  8  Sensor-CASSY 2 LD
1 524220  4  CASSY Lab 2 LD
1 524082  8  Rotary motion sensor S LD
1 524064  4  Pressure sensor S, ±2000 hPa LD
1 30948  4  Fishing line LD
1 35208  4  Helical spring 25 N/m LD
2 50133  4  Connecting lead, 32 A, 100 cm, black LD
1 additionally required:
PC with Windows XP/Vista/7/8/10 (x86 or x64)
1 388181  4  * Immersion pump LD
1 521231  8  * Low-voltage power supply 3/6/9/12 V LD
2 667194  8  * Silicone tubing 7 mm Ø, 1 m LD
1 6043131 * Wide-mouthed can 10 l LD
1 5208105 * Virtual experiment: Hot-air engine pV diagram of the hot-air engine as a heat engine LD

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P2.6.2.4 pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY
PDF (Description from CASSY Lab) PDF (Description from CASSY Lab) P2.6.2.4 pV diagram of the hot-air engine as a heat engine - Recording and evaluating with CASSY
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