Compressor definitions: identify the correct efficiency term. Definition target: the ratio of free air delivery (at standard condition) per stroke to the piston's swept volume. Select the correct name of this ratio.
Mechanical Engineering
Compressors, Gas Dynamics and Gas Turbines
Difficulty: Easy
Choose an option
Answer
Correct Answer: volumetric efficiency
Explanation
GivenRatio = (Free air delivered per stroke at NTP)/(Swept volume of piston).
ConceptThis ratio measures how effectively the cylinder volume is filled with air referenced to standard conditions; the standard term is volumetric efficiency.
Final Answervolumetric efficiency.