Thermal Expansion Pvc

Reference data and engineering information about thermal expansion pvc for thermodynamics applications.

thermalexpansionpvcCalculatorData Table

Overview

Engineering reference data for Thermal Expansion Pvc in thermodynamics.

Key Formulas

First Law

$\Delta U = Q - W$

Energy is conserved — heat added minus work done.

Ideal Gas Law

$PV = nRT$

Relates pressure, volume, and temperature of an ideal gas.

Heat Transfer

$Q = mc\Delta T$

Sensible heat transfer.

Carnot Efficiency

$\eta = 1 - T_C/T_H$

Maximum efficiency between two temperatures.

Variables

Symbol	Description	Unit
$U$	Internal energy	J
$Q$	Heat	J
$W$	Work	J
$P$	Pressure	Pa
$V$	Volume	m³
$T$	Temperature	K

Thermal Expansion Data

5 rows

Thermal expansion in inches per 100 feet for various pipe materials at different temperature changes.
Temperature Change(°F)	Fiberglass(inches/100 ft)	PVC(inches/100 ft)	CPVC(inches/100 ft)	Carbon Steel(inches/100 ft)	Stainless Steel(inches/100 ft)
25	0.31	0.9	1.14	0.18	0.27
50	0.61	1.8	2.28	0.36	0.54
75	0.92	2.7	3.42	0.54	0.82
100	1.23	3.6	4.56	0.72	1.09
150	1.84	5.4	6.84	1.08	1.63

Source: engineeringtoolbox.com

Additional Notes

Temperature Conversion: To convert temperature change from Fahrenheit to Celsius, use the formula: $1^\circ F = \frac{5}{9}^\circ C$ . This means a temperature change of $1^\circ F$ is equivalent to approximately $0.556^\circ C$ .
Material Properties: Note the significant thermal expansion of thermoplastic materials like PVC and CPVC compared to metals. For instance, at a $100^\circ F$ temperature change, PVC expands 5 times more than carbon steel (3.60 vs. 0.72 inches per 100 feet), highlighting the need for expansion joints in PVC piping systems.

Interactive Charts

Pipes - thermal expansion diagram - fahrenheit

References

Original Source

Source: engineeringtoolbox.com