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Stream-based Equations – Aurel

Stream Specification EquationsIn order to grasp the idea of stream-based specs, it’s vital to grasp what is supposed by the next phrases:

  • Specifications are objects with which you enter parameters into CADSIM Plus unit modules in order that the module can carry out the calculations that you just require
  • Unit modules are particular person items of kit or controls that populate your simulation mannequin. These unit modules often have real-world counterparts, akin to tanks, heaters, separators, and pumps
  • Streams are pipes that join unit modules
  • Stream-based specs permit unit modules to ask the streams to offer specification values

Some simulators use unit-based dialog containers which solely let you decide from an inventory of descriptions and numerical entry fields. While this methodology is easy, it drastically restricts the kind of stream info that may be requested for by the models. It additionally restricts every unit to a finite variety of named streams, as a result of the dialog containers are already constructed to offer a predefined checklist to you. With CADSIM Plus, stream-based specs permit you limitless selections in variables which you’ll be able to specify. Having stream-based specs in CADSIM Plus means that you can add any variety of outlet streams to models akin to Separators, and nonetheless have versatile specification choices.

Although CADSIM Plus permits easy numeric specs, these are simply certainly one of a wide range of choices which might be out there to you. Our FlexSpec™ know-how permits you almost limitless flexibility in specifying your course of drawback the way in which that you just wish to. Just one instance of specification flexibility is:

  • An outlet temperature could possibly be set to a worth, or to five levels above an inlet temperature, or to be the identical because the stream’s boiling level (with rise), or to twenty levels of superheat.

All specification objects provide the potential to make use of equations to specify your mannequin. You can equate one worth to a different, ratio or calculate values for any unit module or stream parameter. If you want much more complexity, you should utilize a sequence of equations or cascading equations. Values will be filtered, remodeled, or handed by way of PID or Fuzzy Logic controllers. Different values may even be chosen for differing course of circumstances.

CADSIM Plus specs seem graphically in your flowsheet mannequin in an effort to survey and modify these relationships rapidly and simply. There are not any thriller values hidden away.

The specification flexibility of CADSIM Plus is commonly the function that customers point out first after they examine our simulator to others that they’ve used previously. If you wish to specify your course of mannequin in ways in which make sense to you, and yield outcomes which might be simply in contrast together with your course of, then CADSIM Plus is your most suitable option.

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