Justin Farmer - Evaporator Problem - GRADED

# Justin Farmer - Evaporator Problem - GRADED - Directions...

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Directions for Evaporator Simulation For all cases: Each case has a table of data on the left side of the spreadsheet. A drawing of the system with key data for each case can be seen to the right of t The light yellow cells are required data fields where given information must be en The orange cells are key values of interest. For the case studies: Iterations must be enabled for all case studies. The blue cell indicates the change in one of the operating variables. The red cell is the desired % solids out of the evaporator system. The value in the green cell for each case study should be varied in order to achie

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the data o ntered. ieve the desired % solids ou
P = pressure in psia Heat Vap., Btu/lb a 0.01 -0.18 b -1.3 3.84 c -8.21 11.48 d -16.38 31.13 e 0 0 f 0 0 g 1045.81 86.59 Effect #1 Effect #2 Liquor in, lb/hr 115118.23 136500 Solids in, % 20.2% 17.0% 187.8 166.8 Water evaporated, lb/hr 24475.7 21381.8 Liquor out, lb/hr 90642.6 115118.2 Solids out, % 25.60% 20.15% 33.28 16.85 vacuum, in Hg -3.356 13.069 16.34 8.28 217.4 184.4 BPR, °F 4.6 3.4 222.1 187.8 966.9 987.5 Q, Btu/hr 27014529 23665513 ∆T, °F 45.0 29.6 267.1 217.4 2.7143 1.1122 39.89 16.34 933.8 966.9 Vapor in, lb/hr 28929.2 24475.7 Condensate out, lb/hr 28929.2 24475.7 4000 4000 150 200 Cp, Btu/lb*°F 0.85 0.89 Solids, lb/hr 23200 23200 Clean condensate, lb/hr 28929.2 0.0 Steam Economy, lb H2O evap/lb fresh steam 0.85 0.87 Capacity, lb H2O evap/hr 24476 21382 TK 403.76 376.16 X 243.51 271.11 λ Temperature, °F T liquor in , °F P liquor side , in Hg P liquor side , psia T vapor out , °F T liquor out , °F λ vapor out , Btu/lb T vapor in , °F P vapor in , atm P vapor in , psia λ vapor in , Btu/lb Area, ft 2 U, Btu/ft 2 *hr*°F

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2.40 Overall Capacity (lb H2O evap/hr) = 69357 Overall Steam Economy (lb H2O evap/lb fresh steam) =
Pressure = PC*10^(-X/TK*(A1 + B1*X + C1*X^3)/1+D1*X)), atm PC = 218.17 X = 647.27 - TK A1 = 3.24 B1 = 0.01 C1= 0 D1= 0 BPR = 13.5(S)/(1-S) where S is %S out Effect #3 Effect 1 160000 14.5% 183.0 23500 136500 17.00% BPR = 4.6 10.62 Fresh Steam 19.3 m (lb/hr)= 28929.2 U = 150 5.22 267.1 A = 4000 164.1 P (psia)= 39.9 Cp = 0.85 2.8 166.8 999.8 21114036 m (lb/hr)= 90642.6 17.6 %S= 25.60% 184.4 222.1 0.5632 8.28 987.5 21381.8 m (lb/hr)= 28929.2 21381.8 267.1 4000 P (psia)= 39.9 300 0.92 23200 0.0 1.10 23500 357.84 289.43 TK = (Temperature, °F - 32)/1.8 + 273.16 T (°F)= T (°F)= T (°F)=

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Effect 2 BPR = 3.4 m (lb/hr)= 24475.7 m (lb/hr)= 217.4 U = 200 P (psia)= 16.34 A = 4000 P (psia)= Cp = 0.89 m (lb/hr)= 115118.2 m (lb/hr)= %S= 20.15% %S= 187.8 m (lb/hr)= 24475.7 217.4 P (psia)= 16.3 T (°F)= T (°F)= T (°F)= T (°F)= T (°F)=

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Effect 3 BPR = 2.8 21381.8 m (lb/hr)= 184.4 U = 300 P (in Hg vacuum)= 8.28 A = 4000 Cp = 0.92 Weak Bla 136500.0 m (lb/hr)= 17.00% %S= 166.8 m (lb/hr)= 21381.8 184.4 P (psia)= 8.3 T (°F)= T (°F)=

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23500 19.3 lack Liquor 160000 14.5% 183.0

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P = pressure in psia Heat Vap., Btu/lb a 0.01 -0.18 b -1.3 3.84

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Justin Farmer - Evaporator Problem - GRADED - Directions...

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