Heat Transfer Rate Calculator

Calculate heat-transfer rate from overall coefficient, area and temperature difference.

Live concept view — geometry scales with the entered design condition.

Calculate heat-transfer rate from overall coefficient, area and temperature difference.

PRELIMINARY RESULT

Heat-transfer rate30.00 kW

Formula: Q = U × A × ΔT

Heat-transfer rate uses the specified overall coefficient, surface area and temperature difference.

FORMULA VERIFICATION

Reference: Incropera et al., Fundamentals of Heat and Mass Transfer: Q = UAΔT.

Internal unit basis: W/m²·K, m², K. Outputs: kW.

Valid conditions: Positive U, area and temperature difference.

Limitations: Requires a correctly determined mean ΔT; excludes transient and correction factors.

Design inputs