Definition
The Beale number can be defined in terms of a Stirling engine's operating parameters:
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 expansion space (m3) or (cm3, if pressure is in MPa)
- F is the engine cycle frequency (Hz)
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