Need Help Turning the Result Into a Manufacturable Cooling Design?

A calculator provides an initial engineering target, but the final cooling solution also depends on geometry, available space, heat source distribution, airflow or coolant conditions, mounting and manufacturing requirements.

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Liquid cooling feasibility tool

Cold Plate System Calculator

Check whether a proposed liquid cold plate can keep the mounting surface below its temperature limit—and see the flow, pressure drop and pump power that the geometry demands.

1Will the plate stay below the temperature limit?

2How warm will the coolant leave the plate?

3How much pressure does the cold plate consume?

4What minimum pump power is implied?

Start here — model the flow path inside the cold plate

Coolant flow

Heat source

Parallel paths split total flowHeat → plate → coolant

Parallel rectangular channels

Does the channel network remove the heat without excessive pumping?

The flow divides among identical channels. Channel width, height and count set velocity, heat-transfer area and pressure drop.

Thermal path: coolant heating + internal convection + conduction through the plate base.

Hydraulic path: pressure drop is calculated through one representative parallel path, not multiplied by channel count.

Decision: compare predicted maximum mounting temperature with your allowable plate temperature.

Choose the construction closest to your concept

Manufacturing focus: Parallel channels suit vacuum-brazed or friction-stir-welded aluminum cold plates. Confirm manifold distribution and sealing land width before releasing the drawing.

Enter the thermal requirement

Use the heat applied to this cold plate, not the total system power.

Heat load

Maximum plate temperature

°C

Coolant inlet temperature

°C

Total volumetric flow

L/min

CoolantStandard coolant properties are interpolated at the calculated mean fluid temperature.

Plate and heat source

Plate material

Base thickness above channel

Heat source length

Heat source width

Parallel channel geometry

Channel width

Channel height

Flow length per channel

Number of parallel channels

Manifold + entrance/exit loss coefficient KUse a higher K when ports, turns or manifolds are restrictive.

External loop and pump inputs (optional but recommended)

Hose/pipe inside diameter

Total hose/pipe length

90° elbows

Other component pressure drop

kPa

Add radiator, filter, quick connector and valve losses from supplier data.

Pump efficiency

Absolute roughness

Preliminary system result

Parallel-channel aluminum cold plate

Temperature met

Estimated cold plate R

—

Internal convection + base conduction

Coolant outlet

—

Energy balance across the coolant

Cold plate pressure drop

—

Representative internal flow path

Estimated pump input

—

At entered total loop losses and efficiency

—

Temperature path

Predicted max plate—

Thermal margin—

Allowable R at outlet—

Flow velocity—

Reynolds number—

Flow regime—

Hydraulic diameter—

Heat transfer coefficient—

Wetted area—

Where the pump pressure is spent

Cold plate

—

Pipe + elbows

—

Other components

—

Total system

—

Use this result for concept screening. The model assumes uniform heat input, equal channel distribution and clean internal surfaces. It does not replace CFD or test data for hotspots, manifold maldistribution, boiling, TIM/contact resistance or transient loads.