Rename alpha_w_per_m2k to u_w_per_m2k

CHANGELOG.rst

@@ -5,6 +5,7 @@ Change Log
 -------------------------------
 - [ADDED] enabling connection of valves directly to pipes besides connection between two junctions
 - [ADDED] tutorial for combining the DHNx package and pandapipes
+- [CHANGED] completed renaming of `alpha_w_per_m2k` to `u_w_per_m2k`
 - [CHANGED] Improve readability of setting pipeflow options
 - [FIXED] Default compressibility model in STANET converter now set to "linear" to avoid Exceptions
 

doc/source/about/nameing1.csv → doc/source/about/naming1.csv

@@ -1,4 +1,4 @@
 **Parameter**;**Read As**
 p_bar;:math:`p` :math:`[bar]`
-alpha_w_per_m2k;:math:`\alpha` :math:`[\frac{W}{m^2 \cdot K}]`
+u_w_per_m2k;:math:`u` :math:`[\frac{W}{m^2 \cdot K}]`
 vdot_m3_per_s;:math:`\dot{V}` :math:`[\frac{m^3}{s}]`

doc/source/about/symbols.csv

@@ -15,4 +15,4 @@
 :math:`Re`;Reynolds number
 :math:`k`;Pipe roughness
 :math:`Q`;Heat flow
-:math:`\alpha`;Heat transfer coefficient
+:math:`u`;Overall heat transfer coefficient

doc/source/about/units.rst

@@ -9,7 +9,7 @@ Naming Conventions
 
 .. tabularcolumns:: |l|l|
 .. csv-table:: 
-   :file: nameing1.csv
+   :file: naming1.csv
    :delim: ;
    :widths: 30, 30
 

doc/source/components/pipe/pipe_component.rst

@@ -209,7 +209,7 @@ The heat losses are described by
    :nowrap:
 
    \begin{align*}
-    Q_\text{loss} &= \alpha \cdot l \cdot \Pi \cdot d \cdot (T - T_\text{ext})\\
+    Q_\text{loss} &= u \cdot l \cdot \Pi \cdot d \cdot (T - T_\text{ext})\\
    \end{align*}
 
 

doc/source/components/pipe/pipe_par.csv

@@ -7,7 +7,7 @@ length_km;float;:math:`>` 0;Length of the pipe [km]
 diameter_m;float;:math:`\gt` 0   ;Inner diameter of the pipe [m]
 k_mm;float;:math:`\gt` 0   ;Pipe roughness [mm]
 loss_coefficient;float;:math:`\geq` 0   ;An additional loss coefficient which might account for e.g. bends
-alpha_w_per_m2k;float;:math:`\geq` 0   ;Heat transfer coefficient [W/(m^2K)]
+u_w_per_m2k;float;:math:`\geq` 0   ;Overall heat transfer coefficient [W/(m^2K)]
 qext_w;float;:math:`>` 0   ;An additional heat flow entering or leaving the pipe [W]
 text_k;float;:math:`>` 0   ;The ambient temperature used for calculating heat losses [K]
 sections;integer;:math:`\geq` 1   ;The number of internal pipe sections

doc/source/pipeflow/compressible_par.csv

@@ -6,6 +6,6 @@ loss_coefficient;pipe;A coefficient which introduces additional pressure losses
 length_km;pipe;Length of the pipe
 diameter_m;pipe;Inner pipe diameter
 k_mm;pipe;Pipe roughness
-alpha_w_per_m2K;pipe;No function for hydraulic calculation of incompressible media.
+u_w_per_m2k;pipe;No function for hydraulic calculation of incompressible media.
 qext_w;pipe;No function for hydraulic calculation of incompressible media.
 text_w;pipe;No function for hydraulic calculation of incompressible media.

doc/source/pipeflow/incompressible_par.csv

@@ -6,6 +6,6 @@ loss_coefficient;pipe;A coefficient which introduces additional pressure losses
 length_km;pipe;Length of the pipe
 diameter_m;pipe;Inner pipe diameter
 k_mm;pipe;Pipe roughness
-alpha_w_per_m2K;pipe;No function for hydraulic calculation of incompressible media.
+u_w_per_m2k;pipe;No function for hydraulic calculation of incompressible media.
 qext_w;pipe;No function for hydraulic calculation of incompressible media.
 text_k;pipe;No function for hydraulic calculation of incompressible media.

doc/source/pipeflow/temperature_par.csv

@@ -6,6 +6,6 @@ loss_coefficient;pipe;A coefficient which introduces additional pressure losses
 length_km;pipe;Length of the pipe
 diameter_m;pipe;Inner pipe diameter
 k_mm;pipe;Pipe roughness
-alpha_Wpm2K;pipe;The heat transfer coefficient between the pipe and the external environment
+u_w_per_m2k;pipe;The overall heat transfer coefficient between the pipe and the external environment
 qext_w;pipe;An additional heat flow entering or leaving the pipe
 text_k;pipe;The external temperature used to calculate heat losses

src/pandapipes/component_models/abstract_models/branch_wo_internals_models.py

@@ -5,7 +5,7 @@
 import numpy as np
 
 from pandapipes.component_models.abstract_models.branch_models import BranchComponent
-from pandapipes.idx_branch import (FROM_NODE, TO_NODE, TOUTINIT, ELEMENT_IDX, ACTIVE, T_OUT_OLD, LENGTH, K, TEXT, ALPHA,
+from pandapipes.idx_branch import (FROM_NODE, TO_NODE, TOUTINIT, ELEMENT_IDX, ACTIVE, T_OUT_OLD, LENGTH, K, TEXT, U,
                                    D, AREA)
 from pandapipes.idx_node import TINIT as TINIT_NODE
 from pandapipes.pf.pipeflow_setup import add_table_lookup, get_net_option, get_lookup
@@ -101,7 +101,7 @@ def create_pit_branch_entries(cls, net, branch_pit):
             branch_wo_internals_pit[:, LENGTH] = 0
             branch_wo_internals_pit[:, K] = 1000
             branch_wo_internals_pit[:, TEXT] = 293.15
-            branch_wo_internals_pit[:, ALPHA] = 0
+            branch_wo_internals_pit[:, U] = 0
             branch_wo_internals_pit[:, D] = 0.1
             branch_wo_internals_pit[:, AREA] = branch_wo_internals_pit[:, D] ** 2 * np.pi / 4
         if get_net_option(net, "transient"):

src/pandapipes/component_models/pipe_component.py

@@ -10,7 +10,7 @@
 from pandapipes.component_models.component_toolbox import set_entry_check_repeat, vinterp, p_correction_height_air
 from pandapipes.component_models.junction_component import Junction
 from pandapipes.constants import NORMAL_TEMPERATURE, NORMAL_PRESSURE
-from pandapipes.idx_branch import FROM_NODE, TO_NODE, LENGTH, D, AREA, K, MDOTINIT, ALPHA, QEXT, TEXT, TOUTINIT, \
+from pandapipes.idx_branch import FROM_NODE, TO_NODE, LENGTH, D, AREA, K, MDOTINIT, U, QEXT, TEXT, TOUTINIT, \
     T_OUT_OLD
 from pandapipes.idx_node import (TINIT as TINIT_NODE, HEIGHT, PINIT, PAMB, ACTIVE as ACTIVE_ND, TINIT_OLD, )
 from pandapipes.pf.pipeflow_setup import get_fluid, get_lookup, get_net_option
@@ -121,7 +121,6 @@ def create_pit_branch_entries(cls, net, branch_pit):
             junction_idx_lookup = get_lookup(net, "node", "index")[
                 cls.get_connected_node_type().table_name()]
             fn_col, tn_col = cls.from_to_node_cols()
-
             from_nodes = junction_idx_lookup[net[cls.table_name()][fn_col].values]
             to_nodes = junction_idx_lookup[net[cls.table_name()][tn_col].values]
             internal_pipe_number = cls.get_internal_branch_number(net)
@@ -143,7 +142,7 @@ def create_pit_branch_entries(cls, net, branch_pit):
             set_entry_check_repeat(pipe_pit, LENGTH, net[tbl].length_km.values * 1000 / internal_pipe_number,
                 internal_pipe_number, has_internals)
             set_entry_check_repeat(pipe_pit, K, net[tbl].k_mm.values / 1000, internal_pipe_number, has_internals)
-            set_entry_check_repeat(pipe_pit, ALPHA, net[tbl].u_w_per_m2k.values, internal_pipe_number, has_internals)
+            set_entry_check_repeat(pipe_pit, U, net[tbl].u_w_per_m2k.values, internal_pipe_number, has_internals)
             set_entry_check_repeat(pipe_pit, QEXT, net[tbl].qext_w.values, internal_pipe_number, has_internals)
             set_entry_check_repeat(pipe_pit, TEXT, net[tbl].text_k.values, internal_pipe_number, has_internals)
             nan_mask = np.isnan(pipe_pit[:, TEXT])

src/pandapipes/component_models/valve_component.py

@@ -8,7 +8,7 @@
 from pandapipes.component_models.abstract_models.branch_w_internals_models import BranchWInternalsComponent
 from pandapipes.component_models.component_toolbox import standard_branch_wo_internals_result_lookup
 from pandapipes.component_models.junction_component import Junction
-from pandapipes.idx_branch import LENGTH, K, TEXT, ALPHA, FROM_NODE, TO_NODE, TOUTINIT
+from pandapipes.idx_branch import LENGTH, K, TEXT, U, FROM_NODE, TO_NODE, TOUTINIT
 from pandapipes.idx_node import TINIT as TINIT_NODE, HEIGHT, PINIT, ACTIVE as ACTIVE_ND, PAMB, TINIT_OLD
 from pandapipes.pf.pipeflow_setup import get_fluid, get_net_option, get_lookup
 from pandapipes.pf.result_extraction import extract_branch_results_without_internals
@@ -139,7 +139,7 @@ def create_pit_branch_entries(cls, net, branch_pit):
             valve_pit[:, LENGTH] = 0
             valve_pit[:, K] = 1000
             valve_pit[:, TEXT] = 293.15
-            valve_pit[:, ALPHA] = 0
+            valve_pit[:, U] = 0
 
     @classmethod
     def get_component_input(cls):

src/pandapipes/converter/stanet/table_creation.py

@@ -687,14 +687,14 @@ def create_geodata_sections(row):
     text_k = 293
     if "TU" in pipes.columns:
         text_k = pipes.TU.values.astype(np.float64) + 273.15
-    alpha = 0
+    u_overall = 0
     if "WDZAHL" in pipes.columns:
-        alpha = pipes.WDZAHL.values.astype(np.float64)
+        u_overall = pipes.WDZAHL.values.astype(np.float64)
     pandapipes.create_pipes_from_parameters(
         net, pipe_sections.fj.values, pipe_sections.tj.values, pipe_sections.length.values / 1000,
         pipes.DM.values / 1000, pipes.RAU.values, pipes.ZETA.values, type="main_pipe",
         stanet_std_type=pipes.ROHRTYP.values, in_service=pipes.ISACTIVE.values, text_k=text_k,
-        u_w_per_m2k=alpha,
+        u_w_per_m2k=u_overall,
         name=["pipe_%s_%s_%s" % (nf, nt, sec) for nf, nt, sec in zip(
             pipes.ANFNAM.values, pipes.ENDNAM.values, pipe_sections.section_no.values)],
         stanet_nr=pipes.RECNO.values, stanet_id=pipes.STANETID.values,
@@ -818,16 +818,16 @@ def create_pipes_from_remaining_pipe_table(net, stored_data, connection_table, i
     text_k = 293
     if "TU" in p_tbl.columns:
         text_k = p_tbl.TU.values.astype(np.float64) + 273.15
-    alpha = 0
+    u_overall = 0
     if "WDZAHL" in p_tbl.columns:
-        alpha = p_tbl.WDZAHL.values.astype(np.float64)
+        u_overall = p_tbl.WDZAHL.values.astype(np.float64)
     pandapipes.create_pipes_from_parameters(
         net, from_junctions, to_junctions, length_km=p_tbl.RORL.values.astype(np.float64) / 1000,
         type="main_pipe", diameter_m=p_tbl.DM.values.astype(np.float64) / 1000,
         loss_coefficient=p_tbl.ZETA.values, stanet_std_type=p_tbl.ROHRTYP.values,
         k_mm=p_tbl.RAU.values, in_service=p_tbl.ISACTIVE.values.astype(np.bool_),
         name=["pipe_%s_%s" % (anf, end) for anf, end in zip(from_names[valid], to_names[valid])],
-        u_w_per_m2k=alpha, text_k=text_k, stanet_nr=p_tbl.RECNO.values.astype(np.int32),
+        u_w_per_m2k=u_overall, text_k=text_k, stanet_nr=p_tbl.RECNO.values.astype(np.int32),
         stanet_id=p_tbl.STANETID.values.astype(str), v_stanet=p_tbl.VM.values, geodata=geodata,
         stanet_system=CLIENT_TYPES_OF_PIPES[MAIN_PIPE_TYPE],
         stanet_active=p_tbl.ISACTIVE.values.astype(np.bool_),
@@ -1140,14 +1140,14 @@ def create_geodata_sections(row):
     text_k = 293
     if "TU" in hp_data.columns:
         text_k = hp_data.TU.values.astype(np.float64) + 273.15
-    alpha = 0
+    u_overall = 0
     if "WDZAHL" in hp_data.columns:
-        alpha = hp_data.WDZAHL.values.astype(np.float64)
+        u_overall = hp_data.WDZAHL.values.astype(np.float64)
     pandapipes.create_pipes_from_parameters(
         net, hp_data.fj.values, hp_data.tj.values, hp_data.length.values / 1000,
         hp_data.DM.values / 1000, hp_data.RAU.values, hp_data.ZETA.values, type="house_pipe",
         in_service=hp_data.ISACTIVE.values if houses_in_calculation else False, text_k=text_k,
-        u_w_per_m2k=alpha, geodata=hp_data.section_geo.values,
+        u_w_per_m2k=u_overall, geodata=hp_data.section_geo.values,
         name=["pipe_%s_%s_%s" % (nf, nt, sec) for nf, nt, sec in zip(
             hp_data.CLIENTID.values, hp_data.CLIENT2ID.values, hp_data.section_no.values)],
         stanet_std_type=hp_data.ROHRTYP.values, stanet_nr=hp_data.RECNO.values,

src/pandapipes/converter/stanet/valve_pipe_component/create_valve_pipe.py

@@ -42,7 +42,7 @@ def create_valve_pipe(net, from_junction, to_junction, std_type, length_km, k_mm
     :param sections: The number of internal pipe sections. Important for gas and temperature\
             calculations, where variables are dependent on pipe length.
     :type sections: int, default 1
-    :param u_w_per_m2k: Heat transfer coefficient in [W/(m^2*K)]
+    :param u_w_per_m2k: Overall heat transfer coefficient in [W/(m^2*K)]
     :type u_w_per_m2k: float, default 0
     :param text_k: Ambient temperatures of pipes in [K]
     :type text_k: Iterable or float, default 293
@@ -126,7 +126,7 @@ def create_valve_pipe_from_parameters(net, from_junction, to_junction, length_km
     :param sections: The number of internal pipe sections. Important for gas and temperature\
             calculations, where variables are dependent on pipe length.
     :type sections: int, default 1
-    :param u_w_per_m2k: Heat transfer coefficient in [W/(m^2*K)]
+    :param u_w_per_m2k: Overall heat transfer coefficient in [W/(m^2*K)]
     :type u_w_per_m2k: float, default 0
     :param text_k: Ambient temperatures of pipes in [K]
     :type text_k: Iterable or float, default 293

src/pandapipes/create.py

@@ -475,8 +475,8 @@ def create_pipe_from_parameters(net, from_junction, to_junction, length_km, diam
     :param sections: The number of internal pipe sections. Important for gas and temperature\
             calculations, where variables are dependent on pipe length.
     :type sections: int, default 1
-    :param alpha_w_per_m2k: Heat transfer coefficient in [W/(m^2*K)]
-    :type alpha_w_per_m2k: float, default 0
+    :param u_w_per_m2k: Overall heat transfer coefficient in [W/(m^2*K)]
+    :type u_w_per_m2k: float, default 0
     :param text_k: Ambient temperature of pipe in [K]
     :type text_k: float, default None, will be set equal to the net ambient temperature
     :param qext_w: external heat feed-in to the pipe in [W]
@@ -1334,7 +1334,7 @@ def create_pipes(net, from_junctions, to_junctions, std_type, length_km, k_mm=0.
     :param sections: The number of internal pipe sections. Important for gas and temperature\
             calculations, where variables are dependent on pipe length.
     :type sections: Iterable or int, default 1
-    :param u_w_per_m2k: Heat transfer coefficients in [W/(m^2*K)]
+    :param u_w_per_m2k: Overall heat transfer coefficients in [W/(m^2*K)]
     :type u_w_per_m2k: Iterable or float, default 0
     :param text_k: Ambient temperatures of pipes in [K]
     :type text_k: Iterable or float, default None, will be set equal to the net ambient temperature
@@ -1415,7 +1415,7 @@ def create_pipes_from_parameters(net, from_junctions, to_junctions, length_km, d
     :param sections: The number of internal pipe sections. Important for gas and temperature\
             calculations, where variables are dependent on pipe length.
     :type sections: Iterable or int, default 1
-    :param u_w_per_m2k: Heat transfer coefficients in [W/(m^2*K)]
+    :param u_w_per_m2k: Overall heat transfer coefficients in [W/(m^2*K)]
     :type u_w_per_m2k: Iterable or float, default 0
     :param text_k: Ambient temperatures of pipes in [K]
     :type text_k: Iterable or float, default None, will be set equal to the net ambient temperature

src/pandapipes/idx_branch.py

@@ -19,7 +19,7 @@
 RE = 10 # Reynolds number
 LAMBDA = 11  # Lambda
 LOSS_COEFFICIENT = 12
-ALPHA = 13  # Slot for heat transfer coefficient
+U = 13  # Slot for overall heat transfer coefficient
 QEXT = 14  # heat input into the branch [W]
 TEXT = 15 # temperature of surrounding [K]
 PL = 16 # Pressure lift [bar]

src/pandapipes/networks/network_files/openmodelica_test_networks/heat_transfer_cases/delta.json

@@ -73,7 +73,7 @@
     "pipe": {
       "_module": "pandas.core.frame",
       "_class": "DataFrame",
-      "_object": "{\"columns\":[\"name\",\"from_junction\",\"to_junction\",\"std_type\",\"length_km\",\"diameter_m\",\"k_mm\",\"loss_coefficient\",\"alpha_w_per_m2k\",\"text_k\",\"qext_w\",\"sections\",\"in_service\",\"type\",\"T_om\",\"v_om_sections\",\"v_om\"],\"index\":[0,1,2],\"data\":[[null,0,1,null,1.0,0.075,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[332.845181825348959,324.660066623347916,318.160611770180481,313.001481594273741,308.907406276899564],[0.498968446332231,0.496954030804459,0.495519530733211,0.494491299315269,0.493749551202658],0.495936571677566],[null,1,2,null,0.1,0.075,0.025,0.0,200.0,293.149999999999977,0.0,5,true,\"pipe\",[297.21457931945065,297.537512860585139,297.886277236765295,298.262794970883931,298.669142929974839],[-0.642856230574913,-0.642907483668054,-0.642963788845981,-0.643025455468681,-0.643092849809649],-0.642969161673456],[null,0,2,null,2.0,0.1,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[325.829562442069232,314.503201069629768,307.101922181981081,302.266689358440544,299.108226647274535],[0.365437737825884,0.363638002013637,0.362654006336816,0.36210104668064,0.36178164948421],0.363122488468237]]}",
+      "_object": "{\"columns\":[\"name\",\"from_junction\",\"to_junction\",\"std_type\",\"length_km\",\"diameter_m\",\"k_mm\",\"loss_coefficient\",\"u_w_per_m2k\",\"text_k\",\"qext_w\",\"sections\",\"in_service\",\"type\",\"T_om\",\"v_om_sections\",\"v_om\"],\"index\":[0,1,2],\"data\":[[null,0,1,null,1.0,0.075,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[332.845181825348959,324.660066623347916,318.160611770180481,313.001481594273741,308.907406276899564],[0.498968446332231,0.496954030804459,0.495519530733211,0.494491299315269,0.493749551202658],0.495936571677566],[null,1,2,null,0.1,0.075,0.025,0.0,200.0,293.149999999999977,0.0,5,true,\"pipe\",[297.21457931945065,297.537512860585139,297.886277236765295,298.262794970883931,298.669142929974839],[-0.642856230574913,-0.642907483668054,-0.642963788845981,-0.643025455468681,-0.643092849809649],-0.642969161673456],[null,0,2,null,2.0,0.1,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[325.829562442069232,314.503201069629768,307.101922181981081,302.266689358440544,299.108226647274535],[0.365437737825884,0.363638002013637,0.362654006336816,0.36210104668064,0.36178164948421],0.363122488468237]]}",
       "orient": "split",
       "dtype": {
         "name": "object",
@@ -84,7 +84,7 @@
         "diameter_m": "float64",
         "k_mm": "float64",
         "loss_coefficient": "float64",
-        "alpha_w_per_m2k": "float64",
+        "u_w_per_m2k": "float64",
         "text_k": "float64",
         "qext_w": "float64",
         "sections": "uint32",

src/pandapipes/networks/network_files/openmodelica_test_networks/heat_transfer_cases/delta_2sinks.json

@@ -73,7 +73,7 @@
     "pipe": {
       "_module": "pandas.core.frame",
       "_class": "DataFrame",
-      "_object": "{\"columns\":[\"name\",\"from_junction\",\"to_junction\",\"std_type\",\"length_km\",\"diameter_m\",\"k_mm\",\"loss_coefficient\",\"alpha_w_per_m2k\",\"text_k\",\"qext_w\",\"sections\",\"in_service\",\"type\",\"T_om\",\"v_om_sections\",\"v_om\"],\"index\":[0,1,2],\"data\":[[null,0,1,null,1.0,0.075,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[329.410600196810492,319.440562404502032,312.210414529274658,306.968778786738881,303.169318452001448],[0.341318458296081,0.339737605517018,0.338744886636472,0.338112320956537,0.337702979790481],0.339123250239318],[null,1,2,null,0.1,0.075,0.025,0.0,200.0,293.149999999999977,0.0,5,true,\"pipe\",[294.692677990568086,294.921998901941379,295.185477099752347,295.488150890500492,295.835808975093414],[-0.343564011307833,-0.343581551885853,-0.34360197819313,-0.343625752524103,-0.343653432771645],-0.343605345336513],[null,0,2,null,2.0,0.1,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[321.799153324021518,309.559835593975436,302.549598361888798,298.534728148644604,296.235320966734434],[0.259448911040783,0.258171245214948,0.257579239822841,0.257290958889691,0.257143978642092],0.257926866722071]]}",
+      "_object": "{\"columns\":[\"name\",\"from_junction\",\"to_junction\",\"std_type\",\"length_km\",\"diameter_m\",\"k_mm\",\"loss_coefficient\",\"u_w_per_m2k\",\"text_k\",\"qext_w\",\"sections\",\"in_service\",\"type\",\"T_om\",\"v_om_sections\",\"v_om\"],\"index\":[0,1,2],\"data\":[[null,0,1,null,1.0,0.075,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[329.410600196810492,319.440562404502032,312.210414529274658,306.968778786738881,303.169318452001448],[0.341318458296081,0.339737605517018,0.338744886636472,0.338112320956537,0.337702979790481],0.339123250239318],[null,1,2,null,0.1,0.075,0.025,0.0,200.0,293.149999999999977,0.0,5,true,\"pipe\",[294.692677990568086,294.921998901941379,295.185477099752347,295.488150890500492,295.835808975093414],[-0.343564011307833,-0.343581551885853,-0.34360197819313,-0.343625752524103,-0.343653432771645],-0.343605345336513],[null,0,2,null,2.0,0.1,0.025,0.0,50.0,293.149999999999977,0.0,5,true,\"pipe\",[321.799153324021518,309.559835593975436,302.549598361888798,298.534728148644604,296.235320966734434],[0.259448911040783,0.258171245214948,0.257579239822841,0.257290958889691,0.257143978642092],0.257926866722071]]}",
       "orient": "split",
       "dtype": {
         "name": "object",
@@ -84,7 +84,7 @@
         "diameter_m": "float64",
         "k_mm": "float64",
         "loss_coefficient": "float64",
-        "alpha_w_per_m2k": "float64",
+        "u_w_per_m2k": "float64",
         "text_k": "float64",
         "qext_w": "float64",
         "sections": "uint32",