ABB 800xA Operation page 155

Section 9 Heat Exchanger Asset Monitor (HXAM)
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3BUA000150-600
The text box in Figure 70
Training and how many BOPS are received out of the expected number during
Monitoring.
Compared Heat Transfer Coefficient:
– Value of U: Shows the Ubaseline against which the COPS U is being
compared against during Monitoring. It shows
– Calculated Date: Shows the time when the Ubaseline was calculated. It
shows
Not Available
Current Heat Transfer Coefficient:
– Value of U: Shows the Unew calculated from the current input data.
– Calculated Date: Shows the time when the Unew was calculated.
– Condition: Shows the Subcondition of the Heat_Transfer_Performance
condition after assessing the data. It always shows
Training. The different subconditions that will be reported during
Monitoring are as follows:
Normal:
Declining:
Significantly Declining:
Improving:
Significantly Improving:
tells the user how many BOPS are received during
during Training.
Heat Exchanger Heat Transfer
Efficiency is under Normal condition.
Heat Exchanger Heat Transfer
Efficiency has declined. (Unew dropped
by U_Decline_Level from Ubaseline).
Heat Exchanger Heat Transfer
Efficiency has declined significantly.
(Unew dropped by
U_Significant_Decline_Level from
Ubaseline).
Heat Exchanger Heat Transfer
Efficiency has improved. (Unew raised
by U_Improvement_Level from
Ubaseline).
Heat Exchanger Heat Transfer
Efficiency has improved significantly.
(Unew raised by
HXAM_ST_Faceplate
during Training.
-1
during
Normal
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