Navolio_Evaporators_HW3 - GRADED

Navolio_Evaporators_HW3 - GRADED - Steam Condensate C...

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Unformatted text preview: Steam Condensate C Effect 1 Effect 2 Effect 3 150 200 300 A, ft 4000 4000 4000 0.85 0.89 0.92 Liquor in, lb/hr 115197 136500 160000 186.6 166.3 183 Effect Pressure, psia 37.9 15.9 5.2 Sat'd Effect Temp, F 219.4 186.6 166.3 This is the "Effect Temp", not the " Solids in, % 20.1% 17.0% 14.5% BPR, F 3.40 2.76 2.29 Q Liquor, BTU ### ### ### T 44.5 29.4 17.5 Liquor Out, lb/hr 90905 115197 136500 Vapor In, lb/hr 28548 24292 21303 Liq. Temp. out, F 264.0 216.0 183.9 Solids Out, % 25.5% 20.1% 17.0% Vapor Out, lb/hr 24292 21303 23500 U, BTU/hrft F Cp, BTU/lbF Liq. Temp. in, F should use solids OUT of Effect3, Should be Tvapor out + BPR, not E A = 4000 ft Cp = 0.85 BTU/lbF U = 150 BTU/hrft F A = 4 Cp = U = 2 Effect 1 Vapor Temp Out, F 216.0 183.9 164.1 Vapor out, BTU/lb 967.8 987.8 999.8 Steam In, BTU/lb 936.0 967.8 987.8 2.42 Total Evaporation, lb/hr 69095 Steam Usage, lb/hr 28548 Steam Economy, lb water evap/lb fresh steam Weak Black 160000 183 14.5% Condensate Condensate Steam Table Equations Pressure = PC * 10^(-X/TK*(A1 + B1*X + C1*X^3)/(1 + D PC= 218.17 "Sat'd Effect Temp" X = 647.27 - TK TK = (Temp, F - 32)/1.8 +273.16 A1 = 3.24 B1 = 5.87E-03 C1 = 1.17E-08 D1 = 2.19E-03 Effect 1 Effect 2 Effect 3 T= 264.0 216 184 F TK= 402 375 358 K , not INTO Effect3 (-3pts) t Effect Temp + BPR (-3pts) Effect 3 Effect 2 4000 ft 0.89 BTU/lbF 200 BTU/hrft F A = 4000 ft Cp = 0.92 BTU/lbF U = 300 BTU/hrft F X= 245 272 290 P= 2.58 1.083 0.557 atm Where 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-4.30E-05 8.76E-05 f 9.80E-09 2.79E-08 g 1045.81 86.59 Effect 1 Effect 2 Effect 3 s Effect 3 P= 37.88 15.91 8.18 5.22 psia T= 263.93 216.0 183.9 164.1 F = 936 968 988 1000 T & = a*P +b/P + c*P^0.5 + d*ln(P) +e*P^2 +f*P^3 + g Temperature, F 23500 lb/hr 19.3 in Hg vacuum k Liquor lb/hr F solids D1*X)) Steam Effect 1 Effect 2 Effect 3 Flash Tank 150 200 300 A, ft 4000 4000 4000 0.85 0.89 0.92 1 Liquor in, lb/hr 114897 135784.97 160000 23941 187.3 166.3 183 263.5 Effect Pressure, psia 37.6 16.2 5.2 216.2 Sat'd Effect Temp, F 219.6 187.3 166.3 Solids in, % 20.3% 17.1% 14.5% BPR, F 3.44 2.78 2.29 Q Liquor, BTU ### ### 21758184 ### T 43.9 28.9 18.1 Liquor Out, lb/hr 90956 114897 135785 22794 Vapor In, lb/hr 28106 23941 22035 Liq. Temp. out, F 263.5 216.2 184.5 Solids Out, % 25.7% 20.2% 17.1% Vapor Out, lb/hr 23941 20888 24215 1146.9 Vapor Temp Out, F 216.2 184.5 164.1 U, BTU/hrft F Cp, BTU/lbF Liq. Temp. in, F E A = 4000 ft Cp = 0.85 BTU/lbF U = 150 BTU/hrft F A = 4 Cp = U = 2 Effect 1 E A = 4000 ft Cp = 0.85 BTU/lbF U = 150 BTU/hrft F A = 4 Cp = U = 2 Effect 1 Vapor out, BTU/lb 967.1 987.4 999.8 987.4 Steam In, BTU/lb 936.3 967.1 987.4 2.46 Total Evaporation, lb/hr 69044 Steam Usage, lb/hr 28106 Steam Economy, lb water evap/lb fresh steam Weak Black 160000 183 14.5% Condensate Steam Table Equations...
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Navolio_Evaporators_HW3 - GRADED - Steam Condensate C...

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