diff --git a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
index 52dfc816b1..28ce19eccb 100644
--- a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
+++ b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
@@ -15,6 +15,8 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+randomSampleSize 100000;
+
 solution
 {
     active          true;
@@ -49,7 +51,7 @@ constantProperties
 
     rho0            1000;
     T0              300;
-    cp0             4187;
+    Cp0             4187;
 
     youngsModulus   2e9;
     poissonsRatio   0.35;
@@ -80,7 +82,7 @@ subModels
 
     DragModel       SphereDrag;
 
-    DispersionModel StochasticDispersionRAS;
+    DispersionModel none; // StochasticDispersionRAS;
 
     PatchInteractionModel StandardWallInteraction;
 
@@ -104,7 +106,7 @@ subModels
 
     ManualInjectionCoeffs
     {
-        massTotal       massTotal [ 1 0 0 0 0 ] 0.0001;
+        massTotal       0.0001;
         parcelBasisType mass;
         SOI             0;
         positionsFile   "coalCloud1Positions";
@@ -171,8 +173,11 @@ subModels
 
     ConstantRateDevolatilisationCoeffs
     {
-        A0              A0 [ 0 0 -1 0 0 ] 12;
-        volatileResidualCoeff 0.001;
+        volatileData
+        (
+            (CH4            12)
+        );
+        residualCoeff   0.001;
     }
 
     COxidationKineticDiffusionLimitedRateCoeffs
diff --git a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
index 0d8c7a1bbd..8b4a601401 100644
--- a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
+++ b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
@@ -15,6 +15,8 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+randomSampleSize    100000;
+
 solution
 {
     active          true;
@@ -47,7 +49,7 @@ constantProperties
 
     rho0            2500;
     T0              300;
-    cp0             900;
+    Cp0             900;
 
     youngsModulus   40e9;
     poissonsRatio   0.25;
@@ -88,7 +90,7 @@ subModels
 
     ManualInjectionCoeffs
     {
-        massTotal       massTotal [ 1 0 0 0 0 ] 0.0001;
+        massTotal       0.0001;
         parcelBasisType mass;
         SOI             0;
         positionsFile   "limestonePositions";