Thermal Calculator
Calculate heat flow (Q) based on temperature difference and thermal resistance. Essential for thermal design, cooling systems, and mechanical engineering analysis.
Heat Transfer Formula
Q = ΔT / R
Heat Flow = Temperature Difference / Thermal Resistance
Units: [Watts] = [°C or K] / [°C/W or K/W]
Inputs
e.g., 25 for room temperature
e.g., 100 for hot surface
e.g., 0.5 for efficient heat transfer
Heat Transfer Fundamentals
Thermal Resistance (R): Opposition to heat flow, analogous to electrical resistance
Temperature Difference (ΔT): Driving force for heat transfer
Heat Flow (Q): Rate of heat energy transfer, measured in Watts
Applications: CPU cooling, building insulation, thermal design
Example Scenarios
Typical R Values
CPU → Heatsink: ~0.1-0.3 °C/W
Air gap: ~1.0 °C/W
Insulation: ~2-10 °C/W
Foam: ~5-20 °C/W