Sensible Heat Duty — Thermal Process Calculator

Stream & Process Variables

Mass flow rate (ṁ)kg/s

Specific heat capacity (c_p)kJ/(kg·K)

Inlet temperature (T_in)°C

Outlet temperature (T_out)°C

Heat Duty / Utility Ratio--

LowMediumHigh

Awaiting Input

Heat Duty (Q)

--kW

Temperature ΔT

--°C

Steam flow (saturated, @2bar)

--kg/s

Cooling water flow (ΔT=10°C)

--kg/s

Q = ṁ·c_p·ΔT

ΔT = T_out – T_in (heating) or T_in – T_out (cooling)

Steam (sat. 2bar, h_fg≈2200 kJ/kg): ṁ_steam = Q / 2200

Cooling water (c_p=4.18 kJ/(kg·K), ΔT=10°C): ṁ_cw = Q / (4.18·10)

Q vs ΔT Sensitivity

Energy Balance (Sankey style)