Calcolatrice Conduttività Termica Gratuita
Calcola il flusso di calore attraverso un materiale usando la conduttività termica.
Heat Flow Rate
80.00 W
Heat Flow Rate vs Thermal Conductivity (k)
Formula
## Thermal Conductivity (Fourier's Law) Fourier's law describes the rate of heat conduction through a material. ### Formula **Q/t = k * A * DeltaT / d** where k is thermal conductivity, A is area, DeltaT is temperature difference, and d is thickness. Lower k means better insulation.
Esempio Risolto
Heat loss through a 10 m² wall, 10 cm fiberglass insulation (k=0.04), 20°C temperature difference.
- 01Q/t = k * A * DeltaT / d
- 02Q/t = 0.04 * 10 * 20 / 0.1
- 03Q/t = 8 / 0.1
- 04Q/t = 80 W
Domande Frequenti
What materials have the highest thermal conductivity?
Silver (429), copper (401), and aluminum (237) in W/(m·K). Metals are generally excellent conductors.
What makes a good insulator?
Materials with very low thermal conductivity: fiberglass (~0.04), styrofoam (~0.03), aerogel (~0.015), and still air (~0.025 W/(m·K)).
How does wall thickness affect heat loss?
Heat loss is inversely proportional to thickness. Doubling the insulation thickness halves the heat loss rate.
Impara