diff --git a/openmc/deplete/openmc_operator.py b/openmc/deplete/openmc_operator.py index b00d831272..8a13bff7fa 100644 --- a/openmc/deplete/openmc_operator.py +++ b/openmc/deplete/openmc_operator.py @@ -223,8 +223,13 @@ class OpenMCOperator(TransportOperator): if mat.depletable: burnable_mats.add(str(mat.id)) if mat.volume is None: - raise RuntimeError("Volume not specified for depletable " - "material with ID={}.".format(mat.id)) + if mat.name is None: + msg = ("Volume not specified for depletable material " + f"with ID={mat.id}.") + else: + msg = ("Volume not specified for depletable material " + f"with ID={mat.id} Name={mat.name}.") + raise RuntimeError(msg) volume[str(mat.id)] = mat.volume self.heavy_metal += mat.fissionable_mass @@ -242,7 +247,6 @@ class OpenMCOperator(TransportOperator): for nuc in model_nuclides: if nuc not in nuclides: nuclides.append(nuc) - return burnable_mats, volume, nuclides def _load_previous_results(self):