136 lines
7.5 KiB
Python
136 lines
7.5 KiB
Python
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import csv
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import math
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from typing import List
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from pathlib import Path
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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 SystemSimulation:
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def __init__(self, building, out_path):
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self.building = building
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self.energy_systems = building.energy_systems
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self.heating_demand = [0] + building.heating_demand[cte.HOUR]
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self.cooling_demand = building.cooling_demand
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self.dhw_demand = building.domestic_hot_water_heat_demand
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self.T_out = building.external_temperature[cte.HOUR]
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self.maximum_heating_demand = building.heating_peak_load[cte.YEAR][0]
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self.maximum_cooling_demand = building.cooling_peak_load[cte.YEAR][0]
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self.name = building.name
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self.energy_system_archetype = building.energy_systems_archetype_name
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self.out_path = out_path
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def archetype1(self):
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out_path = self.out_path
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T, T_sup, T_ret, m_ch, m_dis, q_hp, q_aux = [0] * len(self.heating_demand), [0] * len(
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self.heating_demand), [0] * len(self.heating_demand), [0] * len(self.heating_demand), [0] * len(
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self.heating_demand), [0] * len(self.heating_demand), [0] * len(self.heating_demand)
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hp_electricity: List[float] = [0.0] * len(self.heating_demand)
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aux_fuel: List[float] = [0.0] * len(self.heating_demand)
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heating_consumption: List[float] = [0.0] * len(self.heating_demand)
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boiler_consumption: List[float] = [0.0] * len(self.heating_demand)
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T[0], dt = 25, 3600 # Assuming dt is defined somewhere
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ua, v, hp_cap, hp_efficiency, boiler_efficiency = 0, 0, 0, 0, 0
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for energy_system in self.energy_systems:
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if cte.ELECTRICITY not in energy_system.demand_types:
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generation_systems = energy_system.generation_systems
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for generation_system in generation_systems:
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if generation_system.system_type == cte.HEAT_PUMP and cte.HEATING in energy_system.demand_types:
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hp_cap = generation_system.nominal_heat_output
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hp_efficiency = float(generation_system.heat_efficiency)
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for storage in generation_system.energy_storage_systems:
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if storage.type_energy_stored == 'thermal':
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v, h = float(storage.volume), float(storage.height)
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r_tot = sum(float(layer.thickness) / float(layer.material.conductivity) for layer in
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storage.layers)
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u_tot = 1 / r_tot
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d = math.sqrt((4 * v) / (math.pi * h))
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a_side = math.pi * d * h
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a_top = math.pi * d ** 2 / 4
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ua = u_tot * (2 * a_top + a_side)
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elif generation_system.system_type == cte.BOILER:
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boiler_cap = generation_system.nominal_heat_output
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boiler_efficiency = float(generation_system.heat_efficiency)
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for i in range(len(self.heating_demand) - 1):
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T[i + 1] = T[i] + ((m_ch[i] * (T_sup[i] - T[i])) + (
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ua * (self.T_out[i] - T[i])) / cte.WATER_HEAT_CAPACITY - m_dis[i] * (T[i] - T_ret[i])) * (dt / (cte.WATER_DENSITY * v))
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if T[i + 1] < 35:
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q_hp[i + 1] = hp_cap * 1000
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m_ch[i + 1] = q_hp[i + 1] / (cte.WATER_HEAT_CAPACITY * 7)
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T_sup[i + 1] = (q_hp[i + 1] / (m_ch[i + 1] * cte.WATER_HEAT_CAPACITY)) + T[i + 1]
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elif 35 <= T[i + 1] < 45 and q_hp[i] == 0:
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q_hp[i + 1] = 0
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m_ch[i + 1] = 0
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T_sup[i + 1] = T[i + 1]
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elif 35 <= T[i + 1] < 45 and q_hp[i] > 0:
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q_hp[i + 1] = hp_cap * 1000
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m_ch[i + 1] = q_hp[i + 1] / (cte.WATER_HEAT_CAPACITY * 3)
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T_sup[i + 1] = (q_hp[i + 1] / (m_ch[i + 1] * cte.WATER_HEAT_CAPACITY)) + T[i + 1]
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else:
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q_hp[i + 1], m_ch[i + 1], T_sup[i + 1] = 0, 0, T[i + 1]
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hp_electricity[i + 1] = q_hp[i + 1] / hp_efficiency
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if self.heating_demand[i + 1] == 0:
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m_dis[i + 1], t_return, T_ret[i + 1] = 0, T[i + 1], T[i + 1]
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else:
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if self.heating_demand[i + 1] > 0.5 * self.maximum_heating_demand:
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factor = 8
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else:
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factor = 4
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m_dis[i + 1] = self.maximum_heating_demand / (cte.WATER_HEAT_CAPACITY * factor * 3600)
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t_return = T[i + 1] - self.heating_demand[i + 1] / (m_dis[i + 1] * cte.WATER_HEAT_CAPACITY * 3600)
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if m_dis[i + 1] == 0 or (m_dis[i + 1] > 0 and t_return < 25):
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T_ret[i + 1] = max(25, T[i + 1])
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else:
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T_ret[i + 1] = T[i + 1] - self.heating_demand[i + 1] / (m_dis[i + 1] * cte.WATER_HEAT_CAPACITY * 3600)
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tes_output = m_dis[i + 1] * cte.WATER_HEAT_CAPACITY * (T[i + 1] - T_ret[i + 1])
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if tes_output < (self.heating_demand[i + 1] / 3600):
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q_aux[i + 1] = (self.heating_demand[i + 1] / 3600) - tes_output
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aux_fuel[i + 1] = (q_aux[i + 1] * dt) / 35.8e6
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boiler_consumption[i + 1] = q_aux[i + 1] / boiler_efficiency
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heating_consumption[i + 1] = boiler_consumption[i + 1] + hp_electricity[i + 1]
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data = list(zip(T, T_sup, T_ret, m_ch, m_dis, q_hp, hp_electricity, aux_fuel, q_aux, self.heating_demand))
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file_name = f'simulation_results_{self.name}.csv'
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with open(out_path / file_name, 'w', newline='') as csvfile:
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output_file = csv.writer(csvfile)
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# Write header
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output_file.writerow(['T', 'T_sup', 'T_ret', 'm_ch', 'm_dis', 'q_hp', 'hp_electricity', 'aux_fuel', 'q_aux', 'heating_demand'])
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# Write data
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output_file.writerows(data)
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return heating_consumption, hp_electricity, boiler_consumption, T_sup
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def enrich(self):
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if self.energy_system_archetype == 'PV+ASHP+GasBoiler+TES' or 'PV+4Pipe+DHW':
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building_new_heating_consumption, building_heating_electricity_consumption, building_heating_gas_consumption, supply_temperature = (
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self.archetype1())
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self.building.heating_consumption[cte.HOUR] = building_new_heating_consumption
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self.building.heating_consumption[cte.MONTH] = MonthlyValues.get_total_month(self.building.heating_consumption[cte.HOUR])
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self.building.heating_consumption[cte.YEAR] = [sum(self.building.heating_consumption[cte.MONTH])]
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disaggregated_consumption = {}
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for energy_system in self.building.energy_systems:
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if cte.HEATING in energy_system.demand_types:
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for generation_system in energy_system.generation_systems:
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if generation_system.system_type == cte.HEAT_PUMP:
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generation_system.heat_supply_temperature = supply_temperature
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disaggregated_consumption[generation_system.fuel_type] = {}
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if generation_system.fuel_type == cte.ELECTRICITY:
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disaggregated_consumption[generation_system.fuel_type][
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cte.HOUR] = building_heating_electricity_consumption
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disaggregated_consumption[generation_system.fuel_type][cte.MONTH] = MonthlyValues.get_total_month(
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disaggregated_consumption[generation_system.fuel_type][cte.HOUR])
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disaggregated_consumption[generation_system.fuel_type][cte.YEAR] = [
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sum(disaggregated_consumption[generation_system.fuel_type][cte.MONTH])]
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else:
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disaggregated_consumption[generation_system.fuel_type][cte.HOUR] = building_heating_gas_consumption
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disaggregated_consumption[generation_system.fuel_type][cte.MONTH] = MonthlyValues.get_total_month(
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disaggregated_consumption[generation_system.fuel_type][cte.HOUR])
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disaggregated_consumption[generation_system.fuel_type][cte.YEAR] = [
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sum(disaggregated_consumption[generation_system.fuel_type][cte.MONTH])]
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self.building.heating_fuel_consumption_disaggregated = disaggregated_consumption
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return self.building
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