Information Technology Reference
In-Depth Information
Figure 3.10
Sep2 specifications.
Figure 3.11
Sep2 specifications.
3.3.2 Mult Block
The Multiplier block contains a user-specified parameter which multiplies all the flow
rates in the block's feed by a specified value or by a value calculated from another part
of the process. An example of the use of the multiplier block is shown in Figure 3.13.
In this example, stream 1, the feed to the Mult block, is specified, but stream 2, the
feed to the rest of the process, is unknown. In this case a process quantity such as
the flow rate of a component in a stream, for example in stream 8, will be targeted to
achieve a user-specified value. A design specification, described in detail in Chapter
Five, is used to manipulate the value of the multiplier parameter, operating on stream
1, so that stream 2 attains a value such that the desired flow rate of the component in
stream 8 is obtained.
