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Engine Type : beta

Type of gas : air

Temperature, heater : 573 [ K ]

Temperature, kooler : 303 [ K ]

Phase Lag : 90 [ ° ]

Average Pressure : 69.3276 [ kPa ]

Clearance volume, compression space : 13.4596 [ cm³ ]

Swept volume, compression space : 109.4466 [ cm³ ]

Clearance volume, expansion space : 6.0924 [ cm³ ]

Swept volume, expansion space : 60.9239 [ cm³ ]

Volume, kooler : 36.5538 [ cm³ ]

Volume, regenerator : 8.9953 [ cm³ ]

Volume, heater : 89.3838 [ cm³ ]

Results : solely based on User Input

Phase Lag 90.000 [ ° ]

Vswc/Vswe 1.7964 [ - ]

Mass of gas 0.15976 [ g ]

Wc -0.93969 [ J ]

We 1.7770 [ J ]

Wnet 0.83735 [ J ]

Results : optimized for volume phase lag

Phase Lag 90.630 [ ° ]

Vswc/Vswe 1.7964 [ - ]

Mass of gas 0.15972 [ g ]

Wc -0.93973 [ J ]

We 1.7771 [ J ]

Wnet 0.83739 [ J ]

Results : optimized for volume phase lag and Vswc/Vswe

Phase Lag 90.458 [ ° ]

Vswc/Vswe 1.1324 [ - ]

Mass of gas 0.16543 [ g ]

Wc -0.98931 [ J ]

We 1.8709 [ J ]

Wnet 0.88156 [ J ]

Wnet as function of phase lag and Vswc/Vswe

The annotation inside the plot next to a curved line indicate the obtained net work along this line as percentage of the optimum net work of 0.88156 J per cycle.

As Vswc/Vswe is varied the sum Vswc+Vswe stays constant at 170.37 cm³

The penalty for choosing values away from the optimum values for Vswc/Vswe and phase lag, vpl, is surprisingly small. Furthermore, whatever your choice is, under assumption of the isothermal model, your engine's efficiency is always equal to the Carnot efficiency.

http://demotor.net/esquema_y_nomenclatura_motores_alternativos.html

http://bendingmomentdiagram.com/free-calculator/