Terminology; Generic Heat Exchanger Asset Monitor (Hxam-G); Description - ABB 800xA Operation

Section 9 Heat Exchanger Asset Monitor (HXAM)

Terminology

Refer to
exchanger terminology used in this document.

Generic Heat Exchanger Asset Monitor (HXAM-G)

This section describes the salient features of the Generic Heat Exchanger Asset
Monitor operation.

Description

The Generic Heat Exchanger Asset Monitor (HXAM-G) is based on Delta T
measurements made across the heat exchanger in combination with mass flow
information if available from the control system. 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 can be called Performance
Factor, so as not to be confused with Efficiency or Effectiveness, which are already
familiar industry standard terms. The Generic Heat Exchanger Asset Monitor will
watch for operational steady state changes in E at one or more Operation Point Set
(OPS), that are based on the following process data inputs:
•
•
3BUA000150-600
Heat Exchanger Specific Terminology
Required Data Values: In the configuration of the HXAM_G Asset Monitor,
the user specifies the Data Source Aspect and Data Source Item in the Input
Records of the HXAM_G Asset monitor for the following:
– T Hot In.
– T Hot Out.
– T Cold Out.
– T Cold In.
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-G Asset Monitor:
– 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.
on page 187 for specific heat
Terminology
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