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木虫 (小有名气)

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专业: 燃烧学

[求助] Aspenplus对二氧化碳吸收再生塔计算时出现的错误已有1人参与

哪位大侠能帮我看看，对二氧化碳的吸收塔再生塔做计算时老是出现下面的错误提醒，不知道到底怎么回事呢，不胜感激！！

<< Loading Simulation Engine 09:05:27 Thu May 5, 2011>>

->Processing input specifications ...

   INFORMATION
   PURE COMPONENT PARAMETERS FOR SOME COMPONENTS ARE RETRIEVED FROM
   SDF TABLE.  THESE PARAMETERS ARE USED WITH THE ELECNRTL OPTION SET
   UNLESS YOU ENTER YOUR OWN PARAMETERS IN PROP-DATA PARAGRAPHS

   PARAMETERS RETRIEVED FOR COMPONENT C2H7NO ARE:

      DHFORM

  Flowsheet Analysis :

COMPUTATION ORDER FOR THE FLOWSHEET:
ABS PUMP HEAT REG

->Calculations begin ...

Block: ABS    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 10    141.33
      2 1 10    2000.6
      3 1 10    0.76542E+10
      4 1 10    13348.
      5 1 10    6350.4
      6 1 3    3447.6
      7 1 10    16514.
      8 1 10    0.22150E+10
      9 1 10    0.12779E+07
      10 1 10    0.57198E+11
      11 1 10    0.18146E+08
      12 1 10    26593.
      13 1 10    0.54071E+08
      14 1 10    2364.4
      15 1 10    19970.
      16 1 10    10259.
      17 1 10    5186.8
      18 1 10    3364.5
      19 1 10    827.37
      20 1 10    7985.6
      21 1 10    292.52
      22 1 10    0.24237E+12
      23 1 4    17550.
      24 1 10    0.12230E+10
      25 1 10    0.93604E+07
  **  ERROR
   RADFRAC NOT CONVERGED IN  25 OUTSIDE LOOP ITERATIONS.

  *** SEVERE ERROR
   THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0):
      1 5

Block: PUMP    Model: PUMP

Block: HEAT    Model: HEATER

Block: REG    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 10    0.25379E+18
      2 1 10    0.33029E+13
      3 1 10    0.21851E+09
  *** SEVERE ERROR
   THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0):
      1 3 8
   A LIMIT OF  0.10000E-04 * SUM OF FEEDS WAS IMPOSED ON THE FLOW RATES
   OR A LIMIT OF  0.10000E-04 WAS IMPOSED ON THE STAGE V/L OR L/V RATIO.

->Generating block results ...

Block: PUMP    Model: PUMP

->Simulation calculations completed ...

->Generating results ...

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