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Steam Tracing Pipes

Reference data and engineering information about steam tracing pipes for fluid mechanics applications.

steamtracingpipes

Overview

Engineering reference data for Steam Tracing Pipes in fluid mechanics.

Key Formulas

Reynolds Number

Re=ρvDμRe = \frac{\rho v D}{\mu}

Ratio of inertial to viscous forces — determines flow regime.

Bernoulli's Equation

P+12ρv2+ρgh=constP + \frac{1}{2}\rho v^2 + \rho g h = \text{const}

Conservation of energy for steady, inviscid, incompressible flow.

Continuity Equation

A1v1=A2v2A_1 v_1 = A_2 v_2

Conservation of mass for incompressible flow.

Darcy-Weisbach

ΔP=fLDρv22\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}

Pressure drop due to friction in a pipe.

Variables

SymbolDescriptionUnit
ReReReynolds number
ρ\rhoFluid densitykg/m³
vvFlow velocitym/s
DDCharacteristic dimensionm
μ\muDynamic viscosityPa·s
PPPressurePa
ffDarcy friction factor

Steam Tracing Recommendation Table

The required number of 1/2 inch (15 mm) steam tracers for a process line depends on its size and the required operating temperature.

8 rows
Approximate number of 1/2 in. (15 mm) steam tracers required for normally insulated process lines in normal ambient conditions.
Product Line Size(inch)
Frost Protection (< 25°C)(-)
Keep Fluid (< 65°C)(-)
Keep Fluid (< 150°C)(-)
1111
1 1/2112
2112
3113
4123
6223
8223
12236

Source: engineeringtoolbox.com

Practical Application

Example: For a 4-inch process line transporting vegetable oil with a solidification temperature of 40°C (104°F), the objective is to keep the media fluid. Looking at the table for a 4-inch line and a temperature requirement just above 25°C but below 65°C, two 1/2-inch steam tracers would be appropriate.

Interactive Charts

Insulated Copper Tubes - Heat Loss

References