Determining the efficiency of the hot-air engine as a heat engine

VP2.6.2.2
Determining the efficiency of the hot-air engine as a heat engine
Determining the efficiency of the hot-air engine as a heat engine

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Description

The experiment P2.6.2.2 determines the efficiency

of the hot-air engine as a heat engine. The mechanical work W exerted on the axle in each cycle can be calculated using the external torque N of a dynamometrical brake which brakes the hot-air engine to a speed f. The amount of heat Q2 given off corresponds to a temperature increase ΔT in the cooling water.

Components of equipment sets

1 388182 Hot-air engine LD
1 388221  8  Accessories for hot air engine for power measurement 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 575471  8  Counter S LD
1 33746  4  Fork-type light barrier LD
1 50116  4  Multi-core cable, 6-pole, 1.5 m LD
1 531120 Multimeter LDanalog 20 LD
1 531130  8  Multimeter LDanalog 30 LD
1 31327 Hand-held stop-watch, 60s/0.2s LD
1 314141  8  Precision dynamometer, 1 N LD
1 38235  4  Thermometer, -10...+50 °C/0.1 K LD
2 30002  4  Stand base, V-shaped, small LD
1 30041  4  Stand rod, 25 cm, 12 mm Ø LD
1 30042  4  Stand rod, 47 cm, 12 mm diam. LD
1 30051  8  Stand rod, right-angled LD
2 30101  4  Leybold multiclamp LD
1 59006  4  Plastic beaker LD
3 34263  4  Weight 50 g LD
1 50145  4  Connecting lead 19 A, 50 cm, red/blue, pair LD
3 50133  4  Connecting lead, 32 A, 100 cm, black LD
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

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

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P2.6.2.2 Determining the efficiency of the hot-air engine as a heat engine
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