Organic Rankine Cycle (ORC)

src.Source.simulation.Heat_Recovery.ORC.convert_orc.convert_orc(in_var, kb: KB)

Main routine for designing ORCs for the streams given

Organic Rankine Cycles are designed for the excess heat streams given, so that the heat to power production can be analysed.

Parameters

• in_var (dict) –

  All necessary data to perform the ORD design, with the following key:

  • platform: dict

    platform data, with the following keys:

    • location: list:

      Location [º]; [latitude,longitude]

    • fuels_data: dict, optional

      Fuels price and CO2 emission, with the following keys:

      • natural_gas: dict

        with the following keys:

        • co2_emissions: float:

          Fuel CO2 emission [kg CO2/kWh]

        • price: float:

          Fuel price [€/kWh]

      • fuel_oildict

        Similar to “natural_gas”

      • electricitydict

        Similar to “natural_gas”

      • biomassdict

        Similar to “natural_gas”

    • streams: list

      each stream data, with the following keys:

      • id: int

        stream ID []

      • name: str

        stream name []

      • object_type: str

        DEFAULT=stream []

      • stream_type: str

        stream designation []; e.g. inflow, outflow, excess_heat

      • supply_temperature: float

        stream’s supply/initial temperature [ºC]

      • target_temperature: float

        stream’s target/final temperature [ºC]

      • fluid: str

        stream’s fluid []

      • flowrate: float

        stream’s mass flowrate [kg/h]

      • schedule: list

        stream’s hourly schedule

      • hourly_generation: list

        stream’s hourly capacity

      • capacity: float

        stream’s capacity [kW]

      • get_best_number: int, optional

        number of best conversion cases; DEFAULT=3

      • orc_years_working: int, optional

        ORC working years [years]; DEFAULT=25

      • orc_T_evap: float, optional

        ORC evaporator temperature [ºC]; DEFAULT=110

      • orc_T_cond: float, optional

        ORC evaporator temperature [ºC]; DEFAULT=35

• kb (dict) – Knowledge Base data

Returns

output –

Output data, with the following keys:

• best_optionslist

  each designed solution data, with the following keys:

  • ID: int

    ORC design ID []

  • streams_id: list

    streams ID considered for the solution []

  • electrical_generation_nominal: float

    ORC nominal electrical generation [kW]

  • electrical_generation_yearly: float

    ORC yearly electrical generation [kWh]

  • excess_heat_supply_capacity: float

    streams thermal capacity available [kW]

  • conversion_efficiency: float

    ORC heat to electricity conversion efficiency []

  • turnkey: float

    ORC investment cost [€]

  • om_fix: float

    ORC yearly OM fix costs [€/year]

  • om_var: float

    ORC yearly OM var costs [€/kWh]

  • electrical_generation_yearly_turnkey: float

    ORC yearly electrical generation over turnkey [kWh/€]

  • co2_savings: float

    ORC yearly CO2 savings (all electricity is considered to be consumed) [kg CO2/kWh]

  • money_savings: float

    ORC yearly monetary savings (all electricity is considered to be consumed [€/kWh]

  • discount_rate: float

    discount rate []

  • lifetime: float

    ORC working years [years]

• reportstr

  HTML report

Return type

dict