PHYWE Stirling Engine with measureLAB

Principle The Stirling engine is loaded with an adjustable torque meter or a connected generator. The changes in the rotational speed and temperature of the Stirling engine are observed. The effective mechanical energy and power as well as the effective electrical power are estimated as functions of the rotational speed. The amount of energy converted into work per cycle can be determined using the pV diagram. The efficiency of the Stirling engine can be estimated. Advantages Demonstration of the complete Carnot process The inverse Carnot process is also possible using the engine/generator unit All important parts are clearly visible, making their function transparent The measuring instrument displays all relevant parameters (p, V, rpm, T) Tasks Determination of the thermal efficiency of the burner. Calibration of the sensor unit. Calculation of the total energy produced by the engine by determining the cycle area on the oscilloscope screen using transparent paper and coordinate paper. Evaluation of the mechanical work per revolution and calculation of the mechanical power output as a function of the rotational speed using a torque meter. Evaluation of the electrical power output as a function of the rotational speed. Evaluation of the efficiency. Learning Objectives: First and Second Laws of Thermodynamics, Reversible Cycles, Isochoric and Isothermal Changes, Gas Laws, Efficiency, Stirling Engine, Heat Conversion, Heat Pump.