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Stirling engine with Cobra3

Product No: P2360415

Principle

The Stirling engine is submitted to a load by means of an adjustable torquemeter, or by a coupled generator. Rotation frequency and temperature changes of the Stirling engine are observed. Effective mechanical energy and power, as well as effective electrical power, are assessed as a function of rotation frequency. The amount of energy converted to work per cycle can be determined with the assistance of the pV diagram. The efficiency of the Stirling engine can be estimated.

Tasks

Determination of the burner's thermal efficiency
Calibration of the sensor unit.
Calculation of the total energy produced by the engine through determination of the cycle area on the oscilloscope screen, using transparent paper and coordinate paper.
Assessment of the mechanical work per revolution, and calculation of the mechanical power output as a function of the rotation frequency, with the assistance of the torque meter.
Assessment of the electric power output as a function of the rotation frequency.
Efficiency assessment.

What you can learn about

First and second law of thermodynamics
Reversible cycles
Isochoric and isothermal changes
Gas jaws
Efficiency
Stirling engine
Conversion of heat
Thermal pump

Materiallist (Excerpt)	Product	Amount
Meter for Stirling engine, pVnT	04371-97	1
Stirling engine transparent	04372-00	1
Cobra3 BASIC-UNIT, USB	12150-50	1
Sensor unit pVn for Stirling engine	04371-00	1
Torque meter	04372-02	1
Motor/ generator unit	04372-01	1
Thermocouple NiCr-Ni, sheathed	13615-01	2
Power supply 12V / 2A	12151-99	1
Software Cobra3 Universal recorder	14504-61	1
Chimney for stirling engine	04372-04	1
Screened cable, BNC, l 750 mm	07542-11	2
Denaturated alcohol (spirit for burning), 1000 ml	31150-70	1
Adapter, BNC socket/4 mm plug pair	07542-27	2