Shell And Tube Heat Exchanger Asset Monitor (Hxam-St); Description - ABB 800xA Operation

Shell and Tube Heat Exchanger Asset Monitor (HXAM-ST)

Shell and Tube Heat Exchanger Asset Monitor (HXAM-ST)
The following topics discuss Shell and Tube Heat Exchanger Asset Monitor
operation.

Description

The Shell and Tube Heat Exchanger Asset Monitor (HXAM-ST) is based upon
Delta T measurements made across the heat exchanger, in combination with mass
flow information available from the control system, if they are available. It treats the
heat exchanger as a black-box device, with nothing known about the interior
structure and dynamics of the device. It implements a basic definition of what shall
be called Performance Factor, so as not to be confused with Efficiency or
Effectiveness, which are already familiar industry standard terms. The Shell and
Tube Heat Exchanger Asset Monitor will watch for operational steady state changes
in E at one or more Operation Point Set (OPS), which should be based on the
following process data inputs:
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Required Data Values: In the configuration of the HXAM_ST Asset Monitor,
the user specifies the Data Source Aspect and Data Source Item in the Input
Records of the HXAM_ST Asset monitor for the following:
– T Hot In.
– T Hot Out.
– T Cold Out.
– T Cold In.
– W Hot: Alternatively, volume flow and density for the hot side may be
used to calculate W.
– W Cold: Alternatively, volume flow and density for the cold side may be
used to calculate W.
Additional Data Values (Recommended): Depending on what options were
specified during configuration, the user specifies the Data Source Aspect and
Data Source Item in the Input Records of the HXAM-ST Asset Monitor:
– Delta P Hot: Alternatively, P In and P Out for the hot side may be used to
calculate Delta P.
Section 9 Heat Exchanger Asset
3BUA000150-600