Steam Flow from Heat Duty

Convert a heat-transfer duty and usable steam enthalpy drop into the required steam mass flow for process heating.

OPERATING LIMITS — Ideal steam heat-balance calculation only; use actual steam-table enthalpy, condensate return conditions, line losses, traps, non-condensables, and control-valve margins for equipment sizing.

INPUT DESIGN PARAMETERS (SI)

Process Heat Duty[kW]

Usable Steam Enthalpy Drop[kJ/kg]

kJ/kg

CALCULATED SPECIFICATION OUTPUT

Required Steam Flow

1714.3 kg/h

Steam Flow per Duty

1.7143 kg/h per kW

Technical Methodology & Engineering Principles

GOVERNING EQUATION

Steam flow = heat duty / usable enthalpy drop, with consistent energy and mass units.

Assumptions & Scope

Ideal steady heat balance before line losses, condensate subcooling, traps, non-condensables, and control-valve authority. Use the actual steam-table enthalpy difference for final selection.

Operating Range & Boundary

Use finite, physically meaningful inputs within the stated operating assumptions.

Peer Reference: IAPWS-IF97 industrial formulation for water and steam properties.