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> ->Processing input specifications ... Flowchart Analysis: COMPUTATION ORDER FOR THE FLOWCHART: HEAT1 FLASH HEAT2 CDU VDU ->Calculations begin ... Block: HEAT1 Model: HEATER Block: FLASH Model: FLASH2 Block: HEAT2 Model: HEATER Block: CDU Model: PETROFRAC Convergence iterations: OL IL Err/Tol 1 10 0.21612E+06 2 9 0.66815E+06 3 10 4082.5 4 6 0.12123E+06 5 10 0.10586E+06 6 7 0.10776E+07 7 5 0.14265E+08 8 10 0.35374E+08 9 10 0.25388E+07 10 10 0.20750E+08 11 10 0.45950E+10 12 10 68097. 13 6 27394. 14 5 1712.2 15 5 3138.4 16 10 4734.6 17 5 1510.6 18 10 857.47 19 10 4678.0 20 10 0.35088E+07 21 5 0.35874E+08 22 10 0.29665E+09 23 5 0.21395E+08 24 10 2192.5 25 9 0.21530E+06 *** SEVERE ERROR: COLUMN CALCULATIONS FAILED TO CONVERGE AFTER 25 ITERATIONS. * WARNING: IT WAS NOT POSSIBLE TO SOLVE THE 2-PHASE ADIABATIC PROBLEM AS TP SUBPROBLEMS. T= 1.0000D+04 P= 1.6512D+05 HCALC= 6.9457D+09 HFSPEC= 2.6568D+10 TEMPERATURE DETERMINATION FOR PUMPER ROUND 2 FAILED. Block: VDU Model: PETROFRAC Convergence iterations: OL IL Err/Tol 1 10 0.19727E+13 2 10 0.97161E+07 3 10 0.20857E+07 4 10 3688.8 5 10 2984.3 6 10 2197.1 7 5 2776.5 8 10 566.65 9 10 381.60 10 10 297.96 11 10 97.983 12 10 22.674 13 10 6.0883 14 10 3.4189 15 10 3.9774 16 10 1.8668 17 10 0.16484 18 10 0.23771E-01 19 10 0.94368E-02 20 10 0.39376E-02 21 10 0.34763E-02 *** SEVERE ERROR: VAPOR OR LIQUID FLOW IN STAGE 19 IS TENDING TO DISAPPEAR. PLEASE REVIEW THE REFLUX/BOILUP SPECIFICATIONS, AS WELL AS THE SPECIFICATIONS FOR THE HEATERS AND/OR PUMPER ROUNDS. ->Simulation calculations completed ... *** Summary of Errors *** Physical Property System Simulation Terminal Errors 0 0 0 Severe Errors 0 0 2 Errors 0 0 1 Warnings 0 0 1