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Single Acting Piston Air Volume

Reference data and engineering information about single acting piston air volume for material properties applications.

singleactingpistonair

Overview

Engineering reference data for Single Acting Piston Air Volume in material science and properties.

Key Formulas

Stress

σ=FA\sigma = \frac{F}{A}

Force per unit area.

Strain

ε=ΔLL0\varepsilon = \frac{\Delta L}{L_0}

Change in length per original length.

Hooke's Law

σ=Eε\sigma = E \varepsilon

Stress proportional to strain in elastic region.

Thermal Expansion

ΔL=αL0ΔT\Delta L = \alpha L_0 \Delta T

Length change due to temperature.

Variables

SymbolDescriptionUnit
σ\sigmaStressPa
ε\varepsilonStrain
EEYoung's modulusPa
α\alphaThermal expansion coefficient1/°C
ΔT\Delta TTemperature change°C

Air Volume Calculation

The standard formula for calculating the air volume consumed per stroke of a single-acting piston compressor is:

Vair=π4D2LNV_{air} = \frac{\pi}{4} \cdot D^2 \cdot L \cdot N

Where:

  • VairV_{air} is the air volume consumed per unit time.
  • DD is the cylinder bore diameter.
  • LL is the piston stroke length.
  • NN is the number of strokes per unit time.

This formula calculates the theoretical displacement or swept volume of the compressor.

Unit Conversions

For practical engineering calculations, the following conversions are essential:

  • Volume: 1ft3=0.028m31 \, \text{ft}^3 = 0.028 \, \text{m}^3
  • Length: 1in=25.4mm1 \, \text{in} = 25.4 \, \text{mm}

These conversions are critical when specifications are provided in mixed unit systems (e.g., imperial dimensions with SI volume requirements).

References