Aspen求助

馨逸 · 发表于 1970-1-1 08:00:00

Loop $OLVER01 Method: WEGSTEIN    Iteration 27
  Converging tear streams: S1
3 vars not converged, Max Err/Tol 0.49999E+09

Block: B2    Model: HEATX
  **  ERROR
   "COLD" STREAM IS HOTTER THAN "HOT" STREAM
   BLOCK BYPASSED

Block: B8    Model: FLASH3

Block: B9    Model: PUMP

Block: B10    Model: MIXER

Block: B1    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 10    0.17871E+07
      2 1 10    8166.5
      3 1 7    1123.4
      4 1 10    476.15
      5 1 10    331.35
      6 1 10    305.93
      7 1 10    787.33
  *** SEVERE ERROR
   THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0):
      6 7 10
   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.

> Loop $OLVER01 Method: WEGSTEIN    Iteration 28
  Converging tear streams: S1
  19 vars not converged, Max Err/Tol 0.19750E+05

Block: B2    Model: HEATX
  **  ERROR
   "COLD" STREAM IS HOTTER THAN "HOT" STREAM
   BLOCK BYPASSED

Block: B8    Model: FLASH3

Block: B9    Model: PUMP

Block: B10    Model: MIXER

Block: B1    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 10    21069.
      2 1 4    2035.7
      3 1 4    176.08
  *** SEVERE ERROR
   THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0):
      5 6 7 8 9 10
   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.

> Loop $OLVER01 Method: WEGSTEIN    Iteration 29
  Converging tear streams: S1
  14 vars not converged, Max Err/Tol  -0.10000E+05

Block: B2    Model: HEATX
  **  ERROR
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  3.2758000D+02 IS MORE THAN THIN =  3.0615000D+02

Block: B8    Model: FLASH3

Block: B9    Model: PUMP

Block: B10    Model: MIXER

Block: B1    Model: RADFRAC

   Convergence iterations:
      OL ML IL    Err/Tol
      1 1 10    216.88
      2 1 10    109.39
      3 12 28    51.417
  *** SEVERE ERROR
   THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0):
      2 3 5 6 7 8 9 10
   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.

> Loop $OLVER01 Method: WEGSTEIN    Iteration 30
  Converging tear streams: S1
  * WARNING
   CONVERGENCE BLOCK $OLVER01 NOT CONVERGED IN 30 ITERATIONS

  14 vars not converged, Max Err/Tol  -0.10000E+05

  **  ERROR
   BLOCK B1 IS NOT IN MASS BALANCE:
   MASS INLET FLOW = 0.15430546E+03, MASS OUTLET FLOW = 0.15668997E+03
   RELATIVE DIFFERENCE = 0.15453185E-01
   MAY BE DUE TO A TEAR STREAM OR A STREAM FLOW MAY HAVE
   BEEN CHANGED BY A FORTRAN, TRANSFER, OR BALANCE BLOCK
   AFTER THE BLOCK HAD BEEN EXECUTED.

  **  ERROR
   Convergence block $OLVER01 did not converge
   normally in the final pass

->Generating block results ...

Block: B2    Model: HEATX
  * WARNING WHILE GENERATING RESULTS FOR UNIT OPERATIONS BLOCK: "B2" (MODEL:
   "HEATX")
   CALCULATED FEED TEMPERATURE FOR THE COLD SIDE (2.5531554D+02)
   IS INCONSISTENT WITH ITS INLET STREAM VALUE (2.3544202D+02)
   PROBABLE CAUSE: LOOSE FLASH TOLERANCE, OR UPSTREAM BLOCK WITH DIFFERENT
   NPHASE OR PROP SET. THE CALCULATED VALUE WILL BE USED IN CALCULATIONS

  **  ERROR WHILE GENERATING RESULTS FOR UNIT OPERATIONS BLOCK: "B2" (MODEL:
   "HEATX")
   INVALID HOT STREAM TEMPERATURE SPECIFICATION
   T-SPEC =  3.2758000D+02 IS MORE THAN THIN =  3.0615000D+02

Block: B9    Model: PUMP

->Simulation calculations completed ...
哪里错了呢

zhangjx73 · 发表于 1970-1-1 08:00:00

楼主的错误太多了，建议多看看ASPEN资料书，从基本功做起

gong5073489 · 发表于 1970-1-1 08:00:00

好多错误的。换热器X，塔问题，不收敛。等等。你这应该不是一个问题导致的。。

542925680 · 发表于 1970-1-1 08:00:00

错误很多啊，你可以一个模块一个模块的调试，改正。

ftecagan247 · 发表于 1970-1-1 08:00:00

huweijilian · 发表于 1970-1-1 08:00:00

"COLD" STREAM IS HOTTER THAN "HOT" STREAM
BLOCK BYPASSED
- 本文出自马后炮化工-让天下没有难学的化工技术，原文地址：https://meng.horse/thread-213989-1-1.html
冷物料比热物料温度高，物流接反了

wangminhao1 · 发表于 1970-1-1 08:00:00

radfrac塔的进水流量可能太小，或者可能塔板的设置，水流和气流进入塔板设置错误；

hgw04044217 · 发表于 1970-1-1 08:00:00

文件不上传，没人能具体帮你。