Research Article
A Study of Performance Output of a Multivane Air Engine Applying Optimal Injection and Vane Angles
| Symbols | Parameters |
| Rotor to casing (d/D) ratio | 0.95, 0.9, 0.85, 0.80, 0.75, 0.70, 0.65, 0.60, and 0.55, when casing diameters are kept mm | | 2 bar (≈30 psi), 3 bar (≈45 psi), 4 bar (≈60 psi), 5 bar (≈75 psi), 6 bar (≈90 psi)—inlet pressures | | assuming adiabatic expansion | | (/1.1) = 1.0132 bar—exit pressure | | 2500 rpm | | 45 mm length of rotor (assumed minimum) | | (360/θ) number of vanes in rotor | | 1.4 for air | | 45° angle between 2 vanes (i.e., rotor contains correspondingly 8 number of vanes) | | 60°, injection angle at which air enters into turbine. |
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