Add caption Volumetric efficiency Vh = Actual suction volume Vx/ Theoretical suction volume Vs For greater efficiency air compression should be isothermal as this requires the minimum work input. In practice Isothermal compression is not possible, an ideal Isothermal cycle requires sufficient time to allow all the required heat to be transferred out of the cylinder, practicality dictates that the piston must have a relatively high speed to give a reasonable output, Cylinder cooling on a...
