Stellarator Example#

The fusion example demonstrates the integration of ACCERT with a large tokamak fusion reactor model This tutorial demonstrates how to run the Stellarator model introduced in PR #47. It extends ACCERT’s fusion modeling capabilities to include stellarator‐specific cost elements, variables, and LCOE evaluation, the algorithms are leveraged from UKAEA’s PROCESS.

Prerequisites#

  • ACCERT installation (see Installation Guide).

  • MySQL database initialized with the updated schema containing the stellarator algorithms and variables.

  • ACCERT main branch after PR #47.

New Features#

  • Added stellarator-specific cost elements and algorithms.

  • Extended LCOE framework to support stellarator plants.

  • Unified fusion output file naming convention.

General Input Structure#

The input file for the fusion model is located at accert/tutorial/stellarator.son.

accert{
    ref_model = "stellarator"
    var("csi"){value = 16 unit = million}
    var("lsa"){value = 2 unit = N/A}
    var("denstl"){value = 7800 unit = 'kg/m3'}
}

  • accert{}: Denotes the start of the ACCERT input configuration.

  • ref_model: Specifies the reference model as “stellarator”.

  • var(“csi”){value = 16 unit = million}: Represents the variable for the algorithm, it is the allowance for site costs in million USD.

  • var(“lsa”){value = 2 unit = N/A}: Represents the variable for the algorithm, it is the Level of safety assurance switch, 1 is truly passively safe plant, 2 and 3 are in-between, 4 is like the current fission plant.

  • var(“denstl”){value = 7800 unit = ‘kg/m3’}: Represents the variable for the algorithm, it is the density of steel in kg/m3.

Running the Example#

Please follow the Installation Guide before running the fusion example.

Using command line#

To run the fusion example with Python, execute the following command:

> cd ACCERT/tutorial
> python ../src/Main.pi -i stellarator.son

Interpreting the Results#

The output will be generated in the tutorial directory, as output.out, which contains screen outputs and the following Excel files:

  • stellarator_updated_account.xlsx: Contains the updated cost breakdown for the stellarator model.

  • stellarator_LCOE_results.xlsx: Contains the LCOE analysis results specific to the stellarator configuration.