Cold Plate Calculator

1Plate

Length Width Thickness

Material

Conductivity Density

2Flow layout

Channels run Passes

Parallel circuits Edge margin

Header width Header depth

Port inner Ø Mirror ports

3Channel section

Diameter Width Depth

Wall to heated face Wall roughness

4Coolant Fluid

Density Specific heat Conductivity Viscosity Freezing point Boiling point

Inlet temperature Inlet pressure

Flow given as Flow rate

Pump / blower curve

Flow Pressure rise

Rest of loop ΔP … at flow

Rest of loop = pipes, fittings, radiator and anything else in series with the plate. Its pressure drop scales with flow².

5Heat input Heat applied as

Max. surface temp. Heat load

6Heat sources

x, y = centre of each component, measured from the plate's top-left corner (or drag it on the plate layout). The TIM is the layer between component and plate: thickness, conductivity k, and contact resistance for both faces.

Max. heat dissipation

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Plate layout

Cross-section (detail)

Plate surface temperature (2D)

Hover over the map to read the local temperature. Channel paths are shown in white.

Results

Thermal resistance breakdown

1D model, uniform heat: peak surface → coolant inlet. The largest share is where to improve.

Cold Plate Calculator

Plate layout

Plate surface temperature (2D)

Component temperatures

Flow distribution between channels

Results

Thermal resistance breakdown

Pressure drop breakdown

Heat dissipation vs. flow

Pressure drop vs. flow