This dialog appears when you select Tasks } Adjust Process Throughput from the main menu of the application.
On this dialog, you may view current throughput analysis data and adjust (scale up or down) the process throughput. There’s one of two ways you may choose to specify the new throughput level:
a) You may simply request a new target throughput for the throughput reference stream (i.e. directly request a new product rate) either on a per batch (for batch plants only), per hour (for continuous plants only), or per year basis. For convenience, this dialog displays the current throughput (based on the throughput reference stream rate) and latest estimates (as computed the last time M&E balances were executed) of conservative, realistic and theoretical throughput limits of your process based on the current equipment sizes. For more information on how these estimates are computed, please see Potential Maximum Throughput Size. Note that SuperPro Designer will use your requested throughput rate to compute a scale-up (or scale-down) factor and apply it uniformly to all input streams (see case (b) below). For information on how to define a size throughput reference stream, see Rate Reference Flows.
b) You may set a scale-up / scale-down factor. SuperPro Designer will use this factor to multiply the flows of all input streams. If you would rather set the scale-up or scale-down factor for each individual input stream separately, you can do so, by choosing the ‘Stream-by-Stream’ method.
|
|
SuperPro Designer will only adjust the values of the all input streams after you exit this dialog by clicking OK. By default the option ‘Perform M&E Balances Upon Closing of this Dialog’ is checked, which means it will also perform the Mass & Energy balances after it adjusts all the input streams. |
|
|
If you desire to keep the current settings of your process as your “base-case” then as soon as you exit this dialog you should save the process file under a different name (by using the File } Save As option of the main menu), so that your base case data are not overwritten and lost. |
For further information in scaling-up/down of the process, see Scale-up (or down) Process Throughput.
