59 lines
2.7 KiB
Python
59 lines
2.7 KiB
Python
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import math
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from scripts.radiation_tilted import RadiationTilted
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import hub.helpers.constants as cte
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from hub.helpers.monthly_values import MonthlyValues
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class PVSizingSimulation(RadiationTilted):
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def __init__(self, building, solar_angles, tilt_angle, module_height, module_width, ghi):
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super().__init__(building, solar_angles, tilt_angle, ghi)
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self.module_height = module_height
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self.module_width = module_width
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self.total_number_of_panels = 0
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self.enrich()
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def available_space(self):
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roof_area = self.building.roofs[0].perimeter_area
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maintenance_factor = 0.1
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orientation_factor = 0.2
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if self.building.function == cte.RESIDENTIAL:
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mechanical_equipment_factor = 0.2
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else:
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mechanical_equipment_factor = 0.3
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available_roof = (maintenance_factor + orientation_factor + mechanical_equipment_factor) * roof_area
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return available_roof
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def inter_row_spacing(self):
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winter_solstice = self.df[(self.df['AST'].dt.month == 12) &
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(self.df['AST'].dt.day == 21) &
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(self.df['AST'].dt.hour == 12)]
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solar_altitude = winter_solstice['solar altitude'].values[0]
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solar_azimuth = winter_solstice['solar azimuth'].values[0]
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distance = ((self.module_height * abs(math.cos(math.radians(solar_azimuth)))) /
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math.tan(math.radians(solar_altitude)))
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distance = float(format(distance, '.1f'))
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return distance
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def number_of_panels(self, available_roof, inter_row_distance):
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space_dimension = math.sqrt(available_roof)
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space_dimension = float(format(space_dimension, '.2f'))
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panels_per_row = math.ceil(space_dimension / self.module_width)
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number_of_rows = math.ceil(space_dimension / inter_row_distance)
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self.total_number_of_panels = panels_per_row * number_of_rows
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return panels_per_row, number_of_rows
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def pv_output(self):
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radiation = self.total_radiation_tilted
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pv_module_area = self.module_width * self.module_height
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available_roof = self.available_space()
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inter_row_spacing = self.inter_row_spacing()
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self.number_of_panels(available_roof, inter_row_spacing)
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self.building.roofs[0].installed_solar_collector_area = pv_module_area * self.total_number_of_panels
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system_efficiency = 0.2
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pv_hourly_production = [x * system_efficiency * self.total_number_of_panels * pv_module_area *
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cte.WATTS_HOUR_TO_JULES for x in radiation]
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self.building.onsite_electrical_production[cte.HOUR] = pv_hourly_production
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self.building.onsite_electrical_production[cte.MONTH] = (
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MonthlyValues.get_total_month(self.building.onsite_electrical_production[cte.HOUR]))
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self.building.onsite_electrical_production[cte.YEAR] = [sum(self.building.onsite_electrical_production[cte.MONTH])]
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