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Reciprocating Compressor Volumetric Efficiency Calculator

Formula

The formula to calculate the Volumetric Efficiency (E_v) is:

$E_v = \left( \frac{V_s}{V_d} \right) \times 100$

Where:

$E_v$ is the volumetric efficiency (%)
$V_s$ is the actual volumetric capacity (m³)
$V_d$ is the total swept volume (m³)

What is Volumetric Efficiency?

Volumetric Efficiency (E_v) is a ratio or percentage of the total volume of air delivered by a compressor compared to the total swept volume. It is an important parameter in evaluating the performance of a reciprocating compressor. Higher volumetric efficiency indicates better performance as it signifies that the compressor is delivering a larger volume of air relative to its size.

Example Calculation

Let's assume the following values:

Actual Volumetric Capacity (V_s) = 2 m³
Total Swept Volume (V_d) = 3 m³

Using the formula to calculate the Volumetric Efficiency:

$E_v = \left( \frac{2}{3} \right) \times 100 = 66.67 \%$

The Volumetric Efficiency is 66.67%.