# Steam Flow Rate versus kW Rating

## Calculate steam flow rate when kW rating is known

Steam flow rate when kW rating is known can be calculated as

m_{s}= 3600 P / h_{e}(1)

where

m_{s}= steam flow rate (kg/h)

P = load in kW (kW)

h_{e}= specific enthalpy of evaporation of steam at working pressure (kJ/kg)

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