[183_contamination_by_irradiated], issue #183, Implementation of init…

…ialization_helper methods for Lead and Bismuth Henry constant in liquid lbe to help pass the tests. Addition of boundary's values of Lead and Bismuth Henry constant in liquid LBE in properties_bounds.json.

lbh15/properties/lbe_thermochemical_properties/lbe_thermochemical.py

@@ -193,6 +193,25 @@ def correlation(self, T: float, p: float = atm,
         """
         return np.power(10, - 10130 / T - 0.985 * np.log(T) + 12.8163)
 
+    def initialization_helper(self,
+                              property_value: float) -> Union[None, float]:
+        """
+        Returns the temperature guess value according to the value
+        of the Lead Henry constant passed as argument.
+        It is used by the root finder algorithm.
+
+        Parameters
+        ----------
+        property_value : float
+            Lead Henry constant in :math:`[Pa]`
+
+        Returns
+        -------
+        float
+            Temperature guess value in :math:`[K]`
+        """
+        return 1500
+
     @property
     def name(self) -> str:
         """
@@ -333,6 +352,25 @@ def correlation(self, T: float, p: float = atm,
         """
         return np.power(10, - 9656.4 / T + 9.9272)
 
+    def initialization_helper(self,
+                              property_value: float) -> Union[None, float]:
+        """
+        Returns the temperature guess value according to the value
+        of the Bismuth Henry constant passed as argument.
+        It is used by the root finder algorithm.
+
+        Parameters
+        ----------
+        property_value : float
+            Bismuth Henry constant in :math:`[Pa]`
+
+        Returns
+        -------
+        float
+            Temperature guess value in :math:`[K]`
+        """
+        return 1500
+
     @property
     def name(self) -> str:
         """

tests/properties_bounds.json

@@ -635,6 +635,12 @@
       "max": 0.4858986607,
       "T_at_max": 1172.9999798861
    },
+   "bi_Kh_lbh15_bismuth_Henry_constant_in_liquid_lbe": {
+      "min": 0.0000027608,
+      "T_at_min": 623.5500154587,
+      "max": 0.0030945479,
+      "T_at_max": 776.4499805994
+   },
    "G_lbh15_Gibbs_free_energy_variation_in_liquid_lbe": {
       "min": -44.6276162032,
       "T_at_min": 1926.9999545753,
@@ -647,6 +653,12 @@
       "max": 0.3681810562,
       "T_at_max": 1172.9999798861
    },
+   "pb_Kh_lbh15_lead_Henry_constant_in_liquid_lbe": {
+      "min": 0.0000000002,
+      "T_at_min": 623.5500144393,
+      "max": 0.0000001640,
+      "T_at_max": 776.4499805994
+   },
    "H_lbh15_molar_enthalpy_variation_in_liquid_lbe": {
       "min": 0.0617067764,
       "T_at_min": 400.0000107974,