supplySystem.py

Model of different Supply systems. File utilises a builder pattern methodology. New Supply Systems can be introduced by adding new classes.

my_supply = supplySystem.SupplyDirector()

Initialises the heating / cooling systems manager

my_supply.setBuilder(my_supplySystem(Load, T_out, heatingSupplyTemperature, coolingSupplyTemperature, has_heating_demand, has_cooling_demand))

Set the Supply System type, with input parameters. A list of Supply Sytem types can be found below

Input

• Load: Energy demand of the room [W]
• T_out: Outdoor air temperature [C]
• heatingSupplyTemperature: Supply Temperature of the Emission System [C]
• coolingSupplyTemperature: Supply Temperature of the Emission System [C]
• has_heating_demand: Boolean
• has_cooling_demand: Boolean

Builder Options

my_supplySystem can be replaced with the following names

OilBoilerOld

• Old oil boiler with fuel efficiency of 63 percent

OilBoilerMed

• An oil boiler with a fuel efficiency of 82 percent

OilBoilerNew

• New oil boiler with fuel efficiency of 98 percent

HeatPumpAir

• An air-water heat pump.
• Outside temperature is the resevoir temperature
• COP based off a regression analysis of manufacturers data
  • Source: "A review of domestic heat pumps, Iain Staffell, Dan Brett, Nigel Brandonc and Adam Hawkes"
  • http://pubs.rsc.org/en/content/articlepdf/2012/ee/c2ee22653g

HeatPumpWater

• An ground-water heat pump.
• Outside temperature is the ground resevoir temperature of 7 degC in winter and 12degC in summer
• COP based off a regression analysis of manufacturers data
  • Source: "A review of domestic heat pumps, Iain Staffell, Dan Brett, Nigel Brandonc and Adam Hawkes"
  • http://pubs.rsc.org/en/content/articlepdf/2012/ee/c2ee22653g

ElectricHeating

• Resitive electric heatier with 100% conversion efficiency

CHP

• Combined Heat Pump
• 60% conversion to thermal heat
• 33% conversion to electricity

DirectHeater

• 100% energy to electricity conversion. Used in tests and debugging

DirectCooler

• 100% energy to electricity conversion. Used in tests and debugging

my_supply_output = my_supply.calcSystem()

Calculates the output of the chosen supply system

Return

• my_supply_output.electricityIn: Electricity required for heating / cooling
• my_supply_output.fossilsIn: Fossil fuel consumption for heating
• my_supply_output.electricityOut: Electricity generated through heating (used in combined heat and power)