Pumps Compressors Fans Blowers

Reference data and engineering information about pumps compressors fans blowers for gases and compressed air applications.

pumpscompressorsfansblowers

Overview

Engineering reference data for Pumps Compressors Fans Blowers in gases and compressed air.

Key Formulas

Ideal Gas Law

$PV = nRT$

Pressure × Volume = moles × gas constant × temperature.

Boyle's Law

$P_1 V_1 = P_2 V_2$

At constant temperature.

Charles's Law

$\frac{V_1}{T_1} = \frac{V_2}{T_2}$

At constant pressure.

Variables

Symbol	Description	Unit
$P$	Pressure	Pa
$V$	Volume	m³
$T$	Temperature	K
$R$	Gas constant	8.314 J/(mol·K)

Types and Definitions

While the Overview provides general descriptions, the fundamental distinction lies in the fluid being moved and the resulting pressure change:

Pump: A machine for raising a liquid—a relatively incompressible fluid—to a higher level of pressure or head.
Compressor: A machine for raising a gas—a compressible fluid—to a higher level of pressure.
Blower: A machine for moving volumes of a gas with a moderate increase of pressure.
Fan: A machine for moving large amounts of gas with a low increase in pressure.

This classification is primarily based on the nature of the fluid (liquid vs. gas) and the degree of compression (head increase) achieved by the machine.

References

Original Source

Source: engineeringtoolbox.com