Clearance Effects on Cylinder Capacity
| Method | Formula |
|---|---|
| Ideal Gas | VE = 1 - C × (r1/k - 1) |
| With Z Correction | VE = 1 - C × [(Zs/Zd) × r1/k - 1] |
Where: C = clearance fraction, r = compression ratio, k = Cp/Cv
Understand how clearance affects volumetric efficiency and capacity
Volumetric efficiency is the ratio of actual gas volume delivered to the swept volume of the cylinder, affected by clearance volume, compression ratio, and gas properties.
Key factors include clearance volume, compression ratio, and gas properties such as the specific heat ratio (k value).
Unloaders reduce compressor capacity by deactivating cylinder ends, allowing operators to predict capacity changes at different operating conditions.