FC1: General Information 4
2 streams: the first one with 2 flow directions and 1 gas quality
measurement, the second one with 1 flow direction
Figure 4 shows a flow computer application handling two streams, one with
two flow directions (fd 1 and fd 2) and one with one flow direction. In that
case, one block containing two
Flow Conversion AFBs and one Gas
Quality AFB
and one block containing one Flow Conversion and one
Gas Quality AFB are needed.
That sums up to three
Flow Conversion AFBs and two Gas Quality
AFBs
altogether – provided that for both flow directions of the first stream
the same GQ calculation standard and the same base conditions are to be
applied.
Basic System
Stream 1
AFB FC fd 2
Stream 1
AFB FC fd 1
GMdata
Stream 1
(incl. fd info)
Stream 1
AFB GQ
C, ρ, H
Stream 2
AFB FC
Stream 2
AFB GQ
C, ρ, H
GMdata
Stream 2
GQ, p, T
Stream 2
GQ, p, T
Stream 1
Figure 4: Data flow for 2 streams (dual/single fd)
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