🧲 TF plot_proc strand turn plotting

process/data_structure/superconducting_tf_coil_variables.py

@@ -183,6 +183,15 @@
 dia_tf_turn_superconducting_cable: float = None
 """Diameter of the superconducting cable in the TF turn [m]"""
 
+n_tf_turn_superconducting_cables: int = None
+"""Number of superconducting cables in the TF turn"""
+
+len_tf_coil_superconductor: float = None
+"""Length of superconducting cable in one TF coil [m]"""
+
+len_tf_superconductor_total: float = None
+"""Total length of superconducting cable in all TF coils [m]"""
+
 j_tf_superconductor_critical: float = None
 """Critical current density of the superconducting cable [A/m^2]"""
 
@@ -300,6 +309,9 @@ def init_superconducting_tf_coil_variables():
     global a_tf_turn_cable_space_effective
     global dr_tf_wp_no_insulation
     global dia_tf_turn_superconducting_cable
+    global n_tf_turn_superconducting_cables
+    global len_tf_coil_superconductor
+    global len_tf_superconductor_total
     global j_tf_superconductor_critical
     global f_c_tf_turn_operating_critical
     global j_tf_coil_turn
@@ -356,7 +368,10 @@ def init_superconducting_tf_coil_variables():
     radius_tf_turn_cable_space_corners = 0.0
     a_tf_turn_cable_space_effective = 0.0
     dr_tf_wp_no_insulation = 0.0
-    dia_tf_turn_superconducting_cable = 0.0
+    dia_tf_turn_superconducting_cable = 0.00073
+    n_tf_turn_superconducting_cables = 0
+    len_tf_coil_superconductor = 0.0
+    len_tf_superconductor_total = 0.0
     j_tf_superconductor_critical = 0.0
     f_c_tf_turn_operating_critical = 0.0
     j_tf_coil_turn = 0.0

process/input.py

@@ -477,6 +477,9 @@ def __post_init__(self):
     "dia_tf_turn_coolant_channel": InputVariable(
         data_structure.tfcoil_variables, float, range=(0.0, 0.1)
     ),
+    "dia_tf_turn_superconducting_cable": InputVariable(
+        data_structure.superconducting_tf_coil_variables, float, range=(0.0001, 0.01)
+    ),
     "dintrt": InputVariable(data_structure.cost_variables, float, range=(0.0, 0.1)),
     "discount_rate": InputVariable(
         data_structure.cost_variables, float, range=(0.0, 0.5)

process/superconducting_tf_coil.py

@@ -1315,6 +1315,64 @@ def tf_cable_in_conduit_superconductor_properties(
             c_turn_cables_critical,
         )
 
+    def calculate_cable_in_conduit_strand_count(
+        self,
+        a_cable_space: float,
+        dia_superconductor_strand: float,
+    ) -> int:
+        """
+        Calculates the maximum number of superconducting strands that can fit into a cable-in-conduit conductor,
+        based on the available cable space, strand diameter, and desired void fraction.
+
+        :param a_cable_space: Total cross-sectional area available for the cable (in m²).
+        :type a_cable_space: float
+        :param dia_superconductor_strand: Diameter of a single superconducting strand (in meters).
+        :type dia_superconductor_strand: float
+
+        :returns: The maximum number of strands that can fit in the available space, accounting for the void fraction.
+        :rtype: int
+        """
+
+        # Effective area available for strands (excluding voids)
+        effective_area = a_cable_space
+
+        # Area per strand (circular)
+        strand_area = np.pi * (dia_superconductor_strand / 2) ** 2
+
+        # Number of strands that fit
+        return int(effective_area / strand_area)
+
+    def calculate_cable_in_conduit_superconductor_length(
+        self,
+        n_tf_coils: int,
+        n_tf_coil_turns: int,
+        len_tf_coil: float,
+        n_tf_turn_superconducting_cables: int,
+    ) -> float:
+        """
+        Calculates the total length of superconducting material required for the TF coils.
+
+        :param int n_tf_coils: Number of TF coils.
+        :param int n_tf_coil_turns: Total number of turns in the TF coil winding pack.
+        :param float len_tf_coil: Length of a single TF coil (in meters).
+        :param int n_tf_turn_superconducting_cables: Number of superconducting cables per turn in the TF coil.
+
+        :returns: Tuple containing:
+            - Length of superconductor in one TF coil (in meters).
+            - Total length of superconductor in all TF coils (in meters).
+        :rtype: tuple[float, float]
+        """
+
+        # Length of superconductor in one TF coil
+        len_tf_coil_superconductor = (
+            n_tf_coil_turns * len_tf_coil * n_tf_turn_superconducting_cables
+        )
+
+        # Total length of superconductor in all TF coils
+        len_tf_superconductor_total = len_tf_coil_superconductor * n_tf_coils
+
+        return len_tf_coil_superconductor, len_tf_superconductor_total
+
     def output_tf_superconductor_info(self):
         """Output TF superconductor information"""
 
@@ -1976,6 +2034,24 @@ def sc_tf_internal_geom(self, i_tf_wp_geom, i_tf_case_geom, i_tf_turns_integer):
                 dx_tf_turn_insulation=tfcoil_variables.dx_tf_turn_insulation,
             )
 
+        # Calculate number of cables in turn if CICC conductor
+        # ---------------------------------------------------
+        if tfcoil_variables.i_tf_sc_mat != 6:
+            superconducting_tf_coil_variables.n_tf_turn_superconducting_cables = self.calculate_cable_in_conduit_strand_count(
+                a_cable_space=superconducting_tf_coil_variables.a_tf_turn_cable_space_effective,
+                dia_superconductor_strand=superconducting_tf_coil_variables.dia_tf_turn_superconducting_cable,
+            )
+
+            (
+                superconducting_tf_coil_variables.len_tf_coil_superconductor,
+                superconducting_tf_coil_variables.len_tf_superconductor_total,
+            ) = self.calculate_cable_in_conduit_superconductor_length(
+                n_tf_coils=tfcoil_variables.n_tf_coils,
+                n_tf_coil_turns=tfcoil_variables.n_tf_coil_turns,
+                len_tf_coil=tfcoil_variables.len_tf_coil,
+                n_tf_turn_superconducting_cables=superconducting_tf_coil_variables.n_tf_turn_superconducting_cables,
+            )
+
         # Areas and fractions
         # -------------------
         # Central helium channel down the conductor core [m2]

process/tf_coil.py

@@ -1195,6 +1195,30 @@ def outtf(self):
                     "(dia_tf_turn_coolant_channel)",
                     tfcoil_variables.dia_tf_turn_coolant_channel,
                 )
+                po.ovarre(
+                    self.outfile,
+                    "Diameter of superconducting cable",
+                    "(dia_tf_turn_superconducting_cable)",
+                    superconducting_tf_coil_variables.dia_tf_turn_superconducting_cable,
+                )
+                po.ovarre(
+                    self.outfile,
+                    "Number of superconducting cables per turn",
+                    "(n_tf_turn_superconducting_cables)",
+                    superconducting_tf_coil_variables.n_tf_turn_superconducting_cables,
+                )
+                po.ovarre(
+                    self.outfile,
+                    "Length of superconductor in TF coil (m)",
+                    "(len_tf_coil_superconductor)",
+                    superconducting_tf_coil_variables.len_tf_coil_superconductor,
+                )
+                po.ovarre(
+                    self.outfile,
+                    "Total length of superconductor in all TF coils (m)",
+                    "(len_tf_superconductor_total)",
+                    superconducting_tf_coil_variables.len_tf_superconductor_total,
+                )
                 po.ocmmnt(self.outfile, "Fractions by area")
                 po.ovarre(
                     self.outfile,

tests/integration/data/large_tokamak_1_MFILE.DAT

@@ -713,6 +713,7 @@
  Steel_conduit_thickness_(m)_____________________________________________ (dx_tf_turn_steel)____________________      8.0099E-03 ITV
  Inter-turn_insulation_thickness_(m)_____________________________________ (dx_tf_turn_insulation)____________________      8.0000E-04    
  Diameter_of_central_helium_channel_in_cable_____________________________ (dia_tf_turn_coolant_channel)_____________________      1.0000E-02    
+ Diameter_of_superconducting_cable_______________________________________ (dia_tf_turn_superconducting_cable)_ 7.29999999999999963e-04
  internal_area_of_the_cable_space________________________________________ (a_tf_turn_cable_space_no_void)_______________________      1.6999E-03    
  Coolant_fraction_in_conductor_excluding_central_channel_________________ (f_a_tf_turn_cable_space_extra_void)________________________      3.0000E-01    
  Copper_fraction_of_conductor____________________________________________ (f_a_tf_turn_cable_copper)_____________________      8.4212E-01 ITV

tests/integration/data/large_tokamak_2_MFILE.DAT

@@ -714,6 +714,7 @@
  Steel_conduit_thickness_(m)_____________________________________________ (dx_tf_turn_steel)____________________      8.0099E-03 ITV
  Inter-turn_insulation_thickness_(m)_____________________________________ (dx_tf_turn_insulation)____________________      8.0000E-04    
  Diameter_of_central_helium_channel_in_cable_____________________________ (dia_tf_turn_coolant_channel)_____________________      1.0000E-02    
+ Diameter_of_superconducting_cable________________________________________ (dia_tf_turn_superconducting_cable)_ 7.29999999999999963e-04
  internal_area_of_the_cable_space________________________________________ (a_tf_turn_cable_space_no_void)_______________________      1.6999E-03    
  Coolant_fraction_in_conductor_excluding_central_channel_________________ (f_a_tf_turn_cable_space_extra_void)________________________      3.0000E-01    
  Copper_fraction_of_conductor____________________________________________ (f_a_tf_turn_cable_copper)_____________________      8.4212E-01 ITV

tests/integration/data/large_tokamak_3_MFILE.DAT

@@ -714,6 +714,7 @@
  Steel_conduit_thickness_(m)_____________________________________________ (dx_tf_turn_steel)____________________      8.0099E-03 ITV
  Inter-turn_insulation_thickness_(m)_____________________________________ (dx_tf_turn_insulation)____________________      8.0000E-04    
  Diameter_of_central_helium_channel_in_cable_____________________________ (dia_tf_turn_coolant_channel)_____________________      1.0000E-02    
+ Diameter_of_superconducting_cable________________________________________ (dia_tf_turn_superconducting_cable)_ 7.29999999999999963e-04
  internal_area_of_the_cable_space________________________________________ (a_tf_turn_cable_space_no_void)_______________________      1.6999E-03    
  Coolant_fraction_in_conductor_excluding_central_channel_________________ (f_a_tf_turn_cable_space_extra_void)________________________      3.0000E-01    
  Copper_fraction_of_conductor____________________________________________ (f_a_tf_turn_cable_copper)_____________________      8.4212E-01 ITV

tests/integration/data/large_tokamak_4_MFILE.DAT

@@ -714,6 +714,7 @@
  Steel_conduit_thickness_(m)_____________________________________________ (dx_tf_turn_steel)____________________      8.0099E-03 ITV
  Inter-turn_insulation_thickness_(m)_____________________________________ (dx_tf_turn_insulation)____________________      8.0000E-04    
  Diameter_of_central_helium_channel_in_cable_____________________________ (dia_tf_turn_coolant_channel)_____________________      1.0000E-02    
+ Diameter_of_superconducting_cable________________________________________ (dia_tf_turn_superconducting_cable)_ 7.29999999999999963e-04
  internal_area_of_the_cable_space________________________________________ (a_tf_turn_cable_space_no_void)_______________________      1.6999E-03    
  Coolant_fraction_in_conductor_excluding_central_channel_________________ (f_a_tf_turn_cable_space_extra_void)________________________      3.0000E-01    
  Copper_fraction_of_conductor____________________________________________ (f_a_tf_turn_cable_copper)_____________________      8.4212E-01 ITV

tests/integration/data/large_tokamak_MFILE.DAT

@@ -958,6 +958,7 @@
  Steel_conduit_thickness_(m)______________________________________________ (dx_tf_turn_steel)_____________ 8.00215764239549203e-03
  Inter-turn_insulation_thickness_(m)______________________________________ (dx_tf_turn_insulation)________ 8.00000000000000038e-04
  Diameter_of_central_helium_channel_in_cable______________________________ (dia_tf_turn_coolant_channel)__ 1.00000000000000002e-02
+ Diameter_of_superconducting_cable________________________________________ (dia_tf_turn_superconducting_cable)_ 7.29999999999999963e-04
  internal_area_of_the_cable_space_________________________________________ (a_tf_turn_cable_space_no_void)_ 1.72972548472813317e-03
  Coolant_fraction_in_conductor_excluding_central_channel__________________ (f_a_tf_turn_cable_space_extra_void)_ 2.99999999999999989e-01
  Copper_fraction_of_conductor_____________________________________________ (f_a_tf_turn_cable_copper)______________________ 8.31847298851364769e-01