Power output of a stirling engine (Beale Number) :
where:
- Bn is the Beale number
- Wo is the power output of the engine (watts)
- P is the mean average gas pressure (Pa) or ( MPa, if volume is in cm3)
- V is swept volume of the power piston (m3, or cm3, if pressure is in MPa)
- F is the engine cycle frequency (Hz)