Thermal design reference
Air & Coolant Property Lookup
Look up the density, specific heat, dynamic viscosity, thermal conductivity and Prandtl number needed for airflow, cold-plate, pressure-drop and heat-balance calculations.
°C
kPa abs
Dry air
Use mean air temperature for convection and pressure-drop calculations. Density also changes with absolute pressure.
Use mean air temperature for convection and pressure-drop calculations. Density also changes with absolute pressure.
Properties at 25°C
Calculated dry-air properties at entered absolute pressure
ρDensity—kg/m³Converts volumetric flow to mass flow.
cₚSpecific heat—J/kg·KSets heat carried per unit mass and degree.
μDynamic viscosity—mPa·sControls Reynolds number and pressure loss.
kThermal conductivity—W/m·KControls heat diffusion through the fluid.
PrPrandtl number—dimensionlessRatio of momentum to thermal diffusivity.
Kinematic viscosity, ν—
Thermal diffusivity, α—
Volumetric heat capacity, ρcₚ—
Nearby temperature reference
Interpolated values for preliminary engineering| Temperature (°C) | ρ (kg/m³) | cₚ (J/kg·K) | μ (mPa·s) | k (W/m·K) | Pr |
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Property data support Ecotherm forced-air and liquid-cold-plate concept calculations. Water values are engineering interpolations based on standard liquid-water formulations; glycol blends are approximate screening data and must be replaced with the selected coolant supplier's certified properties for final pump, freeze-protection and warranty decisions.
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