pyMAISE.datasets.load_HTGR

pyMAISE.datasets.load_HTGR()[source]

Load HTGR Micro Reactor data. This data consists of 751 samples of 8 inputs:

  • theta_{1}: Angle of control drum in quadrant 1 (degrees),

  • theta_{2}: Angle of control drum in quadrant 1 (degrees),

  • theta_{3}: Angle of control drum in quadrant 2 (degrees),

  • theta_{4}: Angle of control drum in quadrant 2 (degrees),

  • theta_{5}: Angle of control drum in quadrant 3 (degrees),

  • theta_{6}: Angle of control drum in quadrant 3 (degrees),

  • theta_{7}: Angle of control drum in quadrant 4 (degrees),

  • theta_{8}: Angle of control drum in quadrant 4 (degrees),

with 4 outputs:

  • FluxQ1: Neutron flux in quadrant 1 \((\frac{neutrons}{cm^{2} s})\),

  • FluxQ2: Neutron flux in quadrant 2 \((\frac{neutrons}{cm^{2} s})\),

  • FluxQ3: Neutron flux in quadrant 3 \((\frac{neutrons}{cm^{2} s})\),

  • FluxQ4: Neutron flux in quadrant 4 \((\frac{neutrons}{cm^{2} s})\),

This data set is based on the HOLOS-Quad reactor design. This reactor implements modular construction where separate units can be transported independently and assembled at the plant. The HOLOS-Quad core is a 8 cylindrical control drums control a 22 MWt high-temperature gas-cooled microreactor (HTGR). It utilizes TRISO fuel particles contained in hexagonal graphite blocks as a moderator. These graphite blocks have channels where helium gas can pass through for cooling. The main importance of this data set is the influence of the control drum position on the neutron flux distribution. The drums control reactivity by rotating to vary the proximity of \(B_{4}C\), located on a portion of the cylindrical surface, to the fuel. Perturbations of the control drums cause the core power shape to shift, leading to complex power distributions. Therefore, predictions of control drum reactivity worth for arbitrary configurations make this problem nontrivial. The data was taken from [PRK22] and does not utilize symmetry preprocessing to expand the data set.

Returns:

  • data (xarray.DataArray) – Raw HTGR Micro Reactor data with no symmetry conditions applied.

  • inputs (xarray.DataArray) – Eight inputs.

  • outputs (xarray.DataArray) – Four outputs.