Hydraulic Cooling Calculator

Calculate heat generation and size a heat exchanger for a hydraulic system based on pressure, flow, and efficiency.

System pressure (PSI)

System flow rate (GPM)

Overall system efficiency

Ambient temperature (°F)

Max fluid temperature (°F)

Reservoir capacity (gal)

Cooler safety factor

Tab to move between fields

Required cooler capacity (BTU/hr)

5,210

Required cooler capacity (kW)1.53

Heat generated (BTU/hr)7,424

Hydraulic input power (HP)11.67

Natural dissipation (BTU/hr)3,082

Water flow needed (GPM)0.52

Heat generated (kW)2.18

Oil temp rise per pass (°F)4.3

Fan Hp0.05

How to Use This Calculator

Enter System pressure (PSI), System flow rate (GPM), and Overall system efficiency.
Set Ambient temperature (°F), Max fluid temperature (°F), and Reservoir capacity (gal).
Adjust Cooler safety factor as needed.
Review the Required cooler capacity (BTU/hr) result.
Use Required cooler capacity (kW) and Heat generated (BTU/hr) to inform your decision.

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