What should I do about the ASPEN warning? Please help
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WARNING WHILE EVALUATING PROP SET “PH” FOR STREAM “V0101-B” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH25” FOR STREAM “V0101-B” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH” FOR STREAM “E0102-O” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH” FOR STREAM “H2O” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH” FOR STREAM “V0101-B” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH25” FOR STREAM “E0102-O” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH25” FOR STREAM “H2O” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH25” FOR STREAM “V0101-B” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING). * WARNING WHILE EVALUATING PROP SET “PH” FOR STREAM “M0101-0” SUB-STREAM “MIXED”: PH COULD NOT BE CALCULATED (H+/OH- CONCENCY TOO LOW OR MISSING).
These warnings indicate that the concentration of H+ or OH- in the stream is too low or absent, preventing the calculation of the pH value. It is necessary to check whether the composition of the relevant streams in the simulation is correct, and whether there is enough H+ or OH- available to calculate the pH value. If necessary, adjust the composition of the flow or add missing components, and then run the simulation calculations again. If the stream should not contain H+ or OH-, it may be necessary to change or disable the pH calculation in the simulation settings. .