6. Component Parameters

This document lists all of the Component Parameters that are provided by the ARMI Framework. See armi.reactor.parameters for use.

Component Parameters from Framework

Name	Description	Units
volume	Volume of this object.	cm^3
area	Cross sectional area of this component.	cm^2
mult	The multiplicity of this component, i.e. how many of them there are.
mergeWith	Label of other component to merge with
type	The name of this object as input on the blueprints
temperatureInC	Component temperature in °C	°C
numberDensities	Number densities of each nuclide.	#/(bn*cm)
detailedNDens	High-fidelity number density vector with up to thousands of nuclides. Used in high-fi depletion runs where low-fi depletion may also be occurring. This param keeps the hi-fi and low-fi depletion values from interfering. See core.p.detailedNucKeys for keys.	atoms/(bn*cm)
pinNDens	Pin-wise number densities of each nuclide.	atoms/(bn*cm)
percentBu	Burnup as a percentage of initial (heavy) metal atoms.	%FIMA
pinPercentBu	Pin-wise burnup as a percentage of initial (heavy) metal atoms.	%FIMA
buRate	Current rate of burnup accumulation. Useful for estimating times when burnup limits may be exceeded.	%FIMA/days
massHmBOL	Mass of heavy metal at BOL	g
burnupMWdPerKg	Burnup in MWd/Kg of heavy metal	MWd/kg
customIsotopicsName	Label of isotopics applied to this component.
modArea	A (component, operation) tuple used to add/subtract area (in cm^2) from another components area. See c.getArea()
zrFrac	Original Zr frac of this, used for material properties.
pinNum	Pin number of this component in some mesh. Starts at 1.
theoreticalDensityFrac	Fractional value between zero and one, inclusive, for the theoretical density of the material stored on this component.
molesHmBOL	Total number of moles of heavy metal at BOL.	mole
puFrac	Current average Pu fraction. Calculated as the ratio of Pu mass to total HM mass.