How to calculate the water addition amount for steam temperature and pressure reduction control
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My superheated steam is 26,000 Kg/h, 252°C, 1.05 MPa； It needs to be reduced to around 193°C at 1.05 MPa ； The desuperheating water is at 80°C to 85°C and 1.2 MPa; what flow rate would be appropriate?
H1*2600+H3*m=H2*(2600+m) H1---enthalpy of steam at 252℃ and 1.05 MPa; H2---enthalpy of steam at 193℃ and 1.05 MPa; H3---enthalpy of the cooled water; m----flow rate of the cooled water
There is a problem with this equation; approximately 0.3 to 0.35 of the spray does not vaporize
The formula is fine, unless there’s an issue with the basic data you enter
See \"Design Manual for Small and Medium-sized Cogeneration Plants\", P195