局部圧力損失ダクト配管

Overview

Minor pressure losses occur at pipe fittings, valves, bends, tees, expansions, and contractions. Although called 'minor', these losses can be significant in short piping systems.

Variables

Symbol	Description	Unit
$K$	Minor loss coefficient	—
$\Delta P$	Pressure drop	Pa
$L_{eq}$	Equivalent pipe length	m

Formula

$\Delta P = K \cdot \frac{\rho v^2}{2}$

Calculator

Notes

• Results are approximate and should be verified for critical applications
• Input values should be within reasonable engineering ranges

References

• Original Source