Thermal Conductivity Calculator — Calculate Heat Transfer Rates

Thermal Conductivity Calculator

Calculate thermal conductivity, heat transfer rates, and thermal resistance for various materials. Understand how different materials affect heat flow in engineering and construction applications.

Step 1: Material & Dimensions

Understanding Thermal Conductivity

Thermal conductivity (k) measures a material’s ability to conduct heat. Higher values indicate better heat conductors (metals), while lower values indicate better insulators (wood, air).

Step 2: Temperature & Calculation

Heat Transfer Formula

Heat flux (q) = (k × A × ΔT) / d, where k = thermal conductivity, A = area, ΔT = temperature difference, and d = thickness. Thermal resistance R = d / (k × A).

Thermal Conductivity Results

Summary
Material Comparison
Heat Flow Analysis

Heat Transfer Rate

2,000 W
Total heat in 1 hour: 7,200 kJ
Thermal Resistance
0.000025 K/W
Material Conductivity
400 W/m·K
Heat Flux Density
2,000 W/m²
Material Type
Copper

Material Thermal Conductivity Comparison

Material Thermal Conductivity Thermal Resistance Heat Flux (50°C ΔT) Classification

Heat Flow Analysis

Heat Transfer Formulas

Heat Flux (q) = k × A × ΔT / d    |    Thermal Resistance (R) = d / (k × A)

Heat flux represents the rate of heat transfer per unit area. Thermal resistance quantifies how strongly a material opposes heat flow. These calculations are essential for insulation design, heat exchanger sizing, and thermal management in engineering applications.

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