Technology

A ‘Technology’ node defines a device or operational approach that improves the efficiency of a vessel, provides an alternative power source or offers a power transfer from one energy type to another. Examples are air lubrication, wind assisted propulsion or shaft generators respectively.

Example:

Technology "air_lubrication" {
	CAPEX = 2.5e6
	OPEX = 30e3

    set_energy_saving(PROPULSION, 0.04)
}

Attributes

CAPEX

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

• Data type: Float, Forecast, Variable

• Example values:

  • 2.5e6

  • 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:

  • 30e3

  • 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

ShorePowerCapacity

This attribute sets the vessel-side shore power connection capacity.

• Data type: Float, Forecast, Variable

• Example values:

  • 4.0

  • Forecast("name")

• Unit: MW

• Minimum value: 0

• Default: 0

Commands

set_energy_saving

This command sets the fraction of energy saved by the technology.

• Primary key type: EnergyDemandTypeID

• Data type: Float, Variable

• Example value:

  • PROPULSION, 0.2

  • HEAT, Variable("name")

• Unit: Fraction

• Minimum value: 0

set_external_power

This command sets the external power provided by the technology.

• Primary key type: EnergyDemandTypeID

• Data type: Float, Variable

• Example value:

  • PROPULSION, 1.25

  • HEAT, Variable("name")

• Unit: MW

• Minimum value: 0

set_power_transfer

This command sets the power transfer from one energy type to another.

• Primary key type: EnergyDemandTypeID

• Data type: Float, Variable

• Example value:

  • PROPULSION, 1.25

  • HEAT, Variable("name")

• Unit: MW

• Minimum value: 0