Calculate b.p.puFrac on process loading. (#1165)

Author: mgjarrett

armi/bookkeeping/db/tests/test_comparedb3.py

@@ -178,7 +178,7 @@ def test_compareDatabaseSim(self):
             dbs[1]._fullPath,
             timestepCompare=[(0, 0), (0, 1)],
         )
-        self.assertEqual(len(diffs.diffs), 462)
+        self.assertEqual(len(diffs.diffs), 465)
         # Cycle length is only diff (x3)
         self.assertEqual(diffs.nDiffs(), 3)
 

armi/reactor/reactors.py

@@ -375,10 +375,11 @@ def summarizeReactorStats(self):
         )
 
     def setBlockMassParams(self):
-        """Set the parameters kgHM and kgFis for each block"""
+        """Set the parameters kgHM and kgFis for each block and calculate Pu fraction"""
         for b in self.getBlocks():
             b.p.kgHM = b.getHMMass() / units.G_PER_KG
             b.p.kgFis = b.getFissileMass() / units.G_PER_KG
+        b.p.puFrac = b.getPuN() / b.p.nHMAtBOL if b.p.nHMAtBOL > 0.0 else 0.0
 
     def getScalarEvolution(self, key):
         return self.scalarVals[key]

doc/release/0.2.rst

@@ -36,6 +36,7 @@ What's new in ARMI
 #. Bug fix for Component.density. (`PR#1149 https://github.com/terrapower/armi/pull/1149`_)
 #. Calculate block kgHM and kgFis on core loading and after shuffling. (`PR#1136 https://github.com/terrapower/armi/pull/1136`_)
 #. Update point DPAs along with block aveage DPA values. (`PR#1156 https://github.com/terrapower/armi/pull/1156`_)
+#. Calculate block PuFrac on core loading and after shuffling. (`PR#1165 https://github.com/terrapower/armi/pull/1165`_)
 
 Bug fixes
 ---------