Update utils/cooling_load.py

utils/cooling_load.py

@@ -253,7 +253,8 @@ class CoolingLoadCalculator:
                         indoor_temp=indoor_conditions['temperature'],
                         month=month,
                         hour=hour,
-                        latitude=latitude
+                        latitude=latitude,
+                        solar_absorptivity=wall.solar_absorptivity
                     )
                     hourly_loads['walls'][hour + 1] += load
             
@@ -266,7 +267,8 @@ class CoolingLoadCalculator:
                         indoor_temp=indoor_conditions['temperature'],
                         month=month,
                         hour=hour,
-                        latitude=latitude
+                        latitude=latitude,
+                        solar_absorptivity=roof.solar_absorptivity
                     )
                     hourly_loads['roofs'][hour + 1] += load
             
@@ -470,7 +472,8 @@ class CoolingLoadCalculator:
         indoor_temp: float,
         month: str,
         hour: int,
-        latitude: str
+        latitude: str,
+        solar_absorptivity: float
     ) -> float:
         """
         Calculate cooling load for a wall using CLTD method.
@@ -483,6 +486,7 @@ class CoolingLoadCalculator:
             month: Design month
             hour: Hour of the day
             latitude: Latitude (e.g., '24N')
+            solar_absorptivity: Solar absorptivity of the wall surface (0.0 to 1.0)
             
         Returns:
             Cooling load in Watts
@@ -492,7 +496,7 @@ class CoolingLoadCalculator:
             month = self.validate_month(month)
             hour = self.validate_hour(hour)
             if self.debug_mode:
-                logger.debug(f"calculate_wall_cooling_load: latitude={latitude}, month={month}, hour={hour}, wall_group={wall.wall_group}, orientation={wall.orientation.value}")
+                logger.debug(f"calculate_wall_cooling_load: latitude={latitude}, month={month}, hour={hour}, wall_group={wall.wall_group}, orientation={wall.orientation.value}, solar_absorptivity={solar_absorptivity}")
 
             wall_group = str(wall.wall_group).upper()
             if wall_group not in self.valid_wall_groups:
@@ -511,11 +515,11 @@ class CoolingLoadCalculator:
                     wall_group=wall_group,
                     orientation=wall.orientation.value,
                     hour=hour,
-                    color='Dark',
                     month=month,
                     latitude=latitude,
                     indoor_temp=indoor_temp,
-                    outdoor_temp=outdoor_temp
+                    outdoor_temp=outdoor_temp,
+                    solar_absorptivity=solar_absorptivity
                 )
             except Exception as e:
                 if self.debug_mode:
@@ -540,7 +544,8 @@ class CoolingLoadCalculator:
         indoor_temp: float,
         month: str,
         hour: int,
-        latitude: str
+        latitude: str,
+        solar_absorptivity: float
     ) -> float:
         """
         Calculate cooling load for a roof using CLTD method.
@@ -553,6 +558,7 @@ class CoolingLoadCalculator:
             month: Design month
             hour: Hour of the day
             latitude: Latitude (e.g., '24N')
+            solar_absorptivity: Solar absorptivity of the roof surface (0.0 to 1.0)
             
         Returns:
             Cooling load in Watts
@@ -562,7 +568,7 @@ class CoolingLoadCalculator:
             month = self.validate_month(month)
             hour = self.validate_hour(hour)
             if self.debug_mode:
-                logger.debug(f"calculate_roof_cooling_load: latitude={latitude}, month={month}, hour={hour}, roof_group={roof.roof_group}")
+                logger.debug(f"calculate_roof_cooling_load: latitude={latitude}, month={month}, hour={hour}, roof_group={roof.roof_group}, solar_absorptivity={solar_absorptivity}")
 
             roof_group = str(roof.roof_group).upper()
             if roof_group not in self.valid_roof_groups:
@@ -580,11 +586,11 @@ class CoolingLoadCalculator:
                 cltd = self.ashrae_tables.calculate_corrected_cltd_roof(
                     roof_group=roof_group,
                     hour=hour,
-                    color='Dark',
                     month=month,
                     latitude=latitude,
                     indoor_temp=indoor_temp,
-                    outdoor_temp=outdoor_temp
+                    outdoor_temp=outdoor_temp,
+                    solar_absorptivity=solar_absorptivity
                 )
             except Exception as e:
                 if self.debug_mode:
@@ -995,8 +1001,8 @@ if __name__ == "__main__":
     
     # Example inputs
     components = {
-        'walls': [Wall(id="w1", name="North Wall", area=20.0, u_value=0.5, orientation=Orientation.NORTH, wall_group='A')],
-        'roofs': [Roof(id="r1", name="Main Roof", area=100.0, u_value=0.3, orientation=Orientation.HORIZONTAL, roof_group='A')],
+        'walls': [Wall(id="w1", name="North Wall", area=20.0, u_value=0.5, orientation=Orientation.NORTH, wall_group='A', solar_absorptivity=0.6)],
+        'roofs': [Roof(id="r1", name="Main Roof", area=100.0, u_value=0.3, orientation=Orientation.HORIZONTAL, roof_group='A', solar_absorptivity=0.6)],
         'windows': [Window(id="win1", name="South Window", area=10.0, u_value=2.8, orientation=Orientation.SOUTH, shgc=0.7, shading_coefficient=0.8)],
         'doors': [Door(id="d1", name="Main Door", area=2.0, u_value=2.0, orientation=Orientation.NORTH)]
     }