SysML4Mathematica: Example 11 [B]: Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air: Using Webel MPsy objects and SysML Activity Diagrams

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In these Activity Diagrams we see how the previous problem can be setup using Webel MPsy objects, which encapsulate the lower level CoolProp calls. Together, they represent this Mathematica invocation:

ex11$cfm = 20000 unitCFM;

ex11$psy1 = newPsy[asDegF[90], $opt$psy$r -> 0.6];
ex11$psy2 = newPsy[asDegF[55], $opt$psy$r -> 1.0];

  $opt$psy$doShowAsIP -> True

Here unitCFM is a pre-built Mathematica Quantity[1.0, "Feet"^3/"Minutes"]:

The units utility function asDegF[magF_Real] creates a Quantity for °F.

The OpaqueBehavior +Q represents addition (Plus) of 2 Quantities in Mathematica, in this case to obtain 'qDotTotApprox' from 'qDotLatApprox' and 'qDotSenApprox'.

The OpaqueAction @asAssoc is a placeholder "analysis" function that represents constructing a Mathematica Association from 'qDotTot', 'qDotLatApprox', 'qDotSenApprox', and 'qDotTotApprox' with names as label keys.

When the output Association (represented as a SysML Block <||>) is displayed as a table the result is:

qDotTot -1.546632642093384 10^6 Btu/hr
qDotLatApprox -805733.3295464187 Btu/hr
qDotSenApprox -755327.385263709 Btu/hr
qDotTotApprox -1.5610607148101279 10^6 Btu/hr
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