Heat Conduction Calculator
Calculate heat transfer rate through walls, cylinders, and spheres using Fourier's law of heat conduction
About this calculator
The Heat Conduction Calculator determines the rate of heat transfer through solid materials using Fourier's law of heat conduction. This tool is essential for engineers, architects, and HVAC professionals who need to calculate thermal performance of building materials, insulation systems, and heat exchangers. It supports calculations for three common geometries: flat walls, cylindrical pipes, and spherical objects, making it versatile for various thermal analysis applications in construction, mechanical engineering, and energy efficiency projects.
How to use
Select the geometry type (wall, cylinder, or sphere), then input the required parameters including material thermal conductivity, temperature difference, dimensions, and contact area or length. The calculator will instantly compute the heat transfer rate in watts using Fourier's law, helping you analyze thermal performance and energy losses.
Frequently asked questions
What is Fourier's law of heat conduction?
Fourier's law states that heat transfer rate is proportional to temperature gradient and thermal conductivity, flowing from hot to cold regions through solid materials.
What units should I use for thermal conductivity?
Use W/(m·K) for thermal conductivity. Common values: steel ~50, concrete ~1.7, wood ~0.1, and insulation materials typically range from 0.02-0.05 W/(m·K).
How do I find thermal conductivity values?
Check material property tables, manufacturer specifications, or engineering handbooks. Online databases and building codes also provide standard thermal conductivity values for common materials.