Blalock_Evaporator - GRADED

Blalock_Evaporator - GRADED - Instructions: Change values...

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Instructions: Change values in highlighted cells to test steam economy and capacity of different cases. Steam Effect 1 Effect 2 Effect 3 U (Btu/hr ft2 F) 150.00 200.00 300.00 Steam Economy 2.40E+00 A (ft2) 4000.00 4000.00 4000.00 Capacity 6.94E+04 Cp (Btu/lb F) 0.85 0.89 0.92 Effect 1
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23500 19.3 160000 183 14.5 Effect2 Effect3
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lb/hr in HG vacuum lb/hr F % solids
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Multiple Effect Evaporator Calculations Effect 1 Effect 2 Effect 3 Liquor Feed Liquor In (lb/hr) 115114.00 136500.00 160000.00 Liq. Temp. In (F) 187.83 166.83 183.00 Diss. Solids lb solids/lb 0.20 0.17 0.15 Steam Feed Steam In (lb/hr) 28936.63 24480.99 21386.00 Steam Temp. In. (F) 267.08 217.41 184.42 Pressure Steam In (psia) 40.10 16.44 8.33 Heat Vap. (Btu/lb) 933.59 966.71 987.30 Evaporator Bottom U (Btu/(hr*ft^2*F)) 150.00 200.00 300.00 A (ft^2) 4000.00 4000.00 4000.00 cp (Btu/(lb*F)) 0.85 0.89 0.92 BPR (F) 4.64 3.41 2.76 Liquid Temp. (F) 222.06 187.83 166.83 Vapor Temp. (F) 217.41 184.42 164.06 Q (Btu/lb) 27015061.55 23666040.03 21114496.99 Amount Evaporated (lb) 24480.99 21386.00 23500.00 Liquor Discharge Liquor Out (lb/hr) 90633.02 115114.00 136500.00 Liq. Temp. Out (F) 222.06 187.83 166.83 Diss. Solids lb solids/lb 0.26 0.20 0.17 Vapor Discharge Vapor Out (lb/hr) 24480.99 21386.00 23500.00 Vapor Temp. Out (F) 217.41 184.42 164.06 Heat Vap. Out (Btu/lb) 966.71 987.30 999.79 Pressure Vap. Out (inHg vac.) 19.30 Pressure Vap. Out (psia) 16.44 8.33 5.22 Calculated Values Steam Economy 2.40E+00 Capacity 6.94E+04 Key Cells not in use Input Values
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Steam Table Calculations Pressure from Temperature T (F) 267.08 217.41 184.42 PC 218.17 218.17 218.17 X 243.24 270.83 289.16 TK 403.76 376.17 357.84 A1 3.24 3.24 3.24 B1 0.01 0.01 0.01 C1 0 0 0 D1 0 0 0 Pressure (atm) 2.73 1.12 0.57 Pressure (psia) 40.1 16.44 8.33 Heat Vap. From Pressure P (psia) 40.1 16.44 8.33 a 0.01 0.01 0.01 b -1.3 -1.3 -1.3 c -8.21 -8.21 -8.21 d -16.38 -16.38 -16.38 e -4.30E-05 -4.30E-05 -4.30E-05 f 9.80E-09 9.80E-09 9.80E-09 g 1045.81 1045.81 1045.81 lamda (Btu/lb) 933.59 966.71 9.87E+02 Temperature from Pressure P (psia) 5.22 a -0.18 -0.18 -0.18 b 3.84 3.84 3.84 c 11.48 11.48 11.48 d 31.13 31.13 31.13 e 8.76E-05 8.76E-05 8.76E-05 f 2.79E-08 2.79E-08 2.79E-08 g 86.59 86.59 86.59 T (F) #DIV/0! #DIV/0! 164.06 Heat Vap. From Pressure P (psia) 5.22 a 0.01 0.01 0.01 b -1.3 -1.3 -1.3 c -8.21 -8.21 -8.21 d -16.38 -16.38 -16.38 e -4.30E-05 -4.30E-05 -4.30E-05 f 9.80E-09 9.80E-09 9.80E-09 g 1045.81 1045.81 1045.81 lamda (Btu/lb) #DIV/0! #DIV/0! 1.00E+03
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Steam Effect 1 Effect 2 Effect 3 U (Btu/hr ft2 F) 150.00 200.00 300.00 Steam Economy #DIV/0! A (ft2) 4000.00 4000.00 4000.00 Capacity #DIV/0! Cp (Btu/lb F)
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Blalock_Evaporator - GRADED - Instructions: Change values...

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