Heat Duty Calculator

This calculator computes sensible heat duty from the mass flow rate (or batch mass), a user-supplied specific heat capacity and the temperature change, using Q̇ = ṁ × Cp × ΔT for continuous streams and Q = m × Cp × ΔT for batch heating or cooling.

Heat duty is the rate of energy transfer required to heat or cool a process stream. For continuous flow, it is the product of mass flow rate, specific heat capacity, and temperature change. This calculator also supports a batch mode for fixed-mass heating or cooling. You must supply the specific heat capacity — no material lookup is performed.