Thermal Conductivity Calculator

Overview

Engineering reference data for Thermal Conductivity Calculator 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

Units of Thermal Conductivity

Thermal conductivity measures a material's ability to conduct heat and is expressed in multiple units for engineering applications. Key units include:

• W/m·K (watt per meter-kelvin)
• W/cm·°C (watt per centimeter-degree Celsius)
• kW/m·K (kilowatt per meter-kelvin)
• cal/s·cm·°C (calorie per second-centimeter-degree Celsius)
• kcal/h·m·°C (kilocalorie per hour-meter-degree Celsius)
• BTU/h·ft·°F (British thermal unit per hour-foot-degree Fahrenheit)
• BTU·in/h·ft²·°F (British thermal unit-inch per hour-square foot-degree Fahrenheit)

Accurate unit conversion is crucial for cross-system compatibility in design and analysis.

Thermal Conductivity Data References

For detailed values, consult the following thermal conductivity charts:

• Thermal Conductivity Unit Converter Chart
• Thermal Conductivity of Liquids
• Thermal Conductivity of Metals, Metallic Elements and Alloys
• Thermal Conductivity of Selected Materials and Gases

These resources provide categorized data for quick lookup in engineering contexts.

References

• Original Source