PowerSystem

A PowerSystem node defines a collection of converters which make up the full power system used to satisfy the propulsion, electrical, and heat demand of a vessel. Examples of power systems are a conventional main engine, auxiliary engine, and boiler and a diesel-electric setup.

Example:

PowerSystem "conventional" {
    Propulsion = Converter("main_engine")
    Electrical = Converter("auxiliary_engine")
    Heat = Converter("boiler")
    
    CAPEX = 1e6
    OPEX = 1e4
}

Attributes

CAPEX

This attribute represents the CAPEX (capital expenditure) for installing the machinery.

• Data type: Float, Forecast, Variable

• Example values:

  • 1e6

  • Forecast("name")

• Unit: USD

• Minimum value: 0

• Default: 0

OPEX

This attribute represents the OPEX (operational expenditure) for maintaining the machinery annually.

• Data type: Float, Forecast, Variable

• Example values:

  • 1e4

  • Forecast("name")

• Unit: USD/year

• Minimum value: 0

• Default: 0

Lifetime

This attribute sets the lifetime of the machinery.

• Data type: Float, Forecast, Variable

• Example values:

  • 25

  • Forecast("name")

• Unit: Years

• Minimum value: 0

• Default: Vessel lifetime.

Replacement

This attribute sets the fraction of CAPEX paid when part of the machinery is replaced at the end of the part’s lifetime.

• Data type: Float, Forecast, Variable

• Example values:

  • 0.5

  • Forecast("name")

• Unit: Fraction

• Minimum value: 0

• Default: 1

Propulsion *

This attribute defines the converter used to satisfy the propulsion demand.

• Data type: Converter

• Example values:

  • Converter("name")

• Default: None. Must be provided by the user.

Electrical *

This attribute defines the converter used to satisfy the electrical demand.

• Data type: Converter

• Example values:

  • Converter("name")

Heat *

This attribute defines the converter used to satisfy the heat demand.

• Data type: Converter

• Example values:

  • Converter("name")