Models

Models, and how each one was made

Some of these were generated from published design detail by software. Some were built by hand and checked against a reference solution. Some are not in the new stack yet. Every card says which, because the difference is the whole point.

Published reference model

Released in its own repository as a generic model of a reactor class. Check the repository for scope and verification status before relying on it.

AI-generated, unverified

Built by the model generator from published design detail. Good for exercising the platform, teaching, and benchmarking. Not reviewed against a reference solution and not a plant model.

Verified

Built by hand, quantified, and checked against its own reference solution — normally SAPHIRE. Where results disagree, the disagreement is recorded with the model.

Not yet migrated

Exists as a SAPHIRE model. Translation into the OpenPRA MEF through the SAPHIRE round trip is planned but has not been done.

Published reference model

Generic MHTGR

Generic Modular High Temperature Gas Cooled Reactor

Published reference model

A published generic reactor model, released in its own repository. Check the repository for its current scope and verification status.

Internal events, through event sequence quantification

Repository →

G-SCFR

Generic Sodium Cooled Fast Reactor

Published reference model

A published generic reactor model, released in its own repository. Check the repository for its current scope and verification status.

Internal events, through event sequence quantification

Repository →

Generic PWR

Generic Pressurized Water Reactor

Published reference model

A published generic reactor model, released in its own repository. Check the repository for its current scope and verification status.

Internal events, through event sequence quantification

Repository →
AI-generated, unverified

MHTGR

Modular High Temperature Gas Reactor

AI-generated, unverified

Built from published MHTGR design detail by the model generator. Useful for exercising the platform and for teaching. It has not been reviewed against a reference solution.

Internal events, through event sequence quantification; seismic example

Open the app →

EBR-II

Experimental Breeder Reactor II

AI-generated, unverified

Built from published EBR-II design detail by the model generator. Same caveat: unreviewed, and not a substitute for a plant model.

Internal events, through event sequence quantification

Open the app →
Verified

MHTGR (SAPHIRE)

Ground-up MHTGR model

Verified

Constructed by hand in SAPHIRE and checked against its own quantification. Not yet migrated into the new stack.

Internal events, through event sequence quantification

Repository →

EBR-II (SAPHIRE)

Ground-up EBR-II model

Verified

Constructed by hand in SAPHIRE and checked against its own quantification. Not yet migrated into the new stack.

Internal events, through event sequence quantification

Repository →
Not yet migrated

NUREG-1150

Severe Accident Risks study models

Not yet migrated

Held as SAPHIRE models. Migration into the OpenPRA MEF is planned but not done.

Internal events through radiological release

Repository →

SOARCA

State-of-the-Art Reactor Consequence Analyses

Not yet migrated

Held as SAPHIRE models. Migration into the OpenPRA MEF is planned but not done.

Sequences through offsite radiological consequence

Repository →

Level 3 PRA Project

Offsite radiological consequence reference model

Not yet migrated

Held as a SAPHIRE model pending radiological consequence support in the new stack.

Offsite radiological consequence

Repository →

Why label them at all

A model that looks complete and has never been checked is more dangerous than no model, because it invites use it cannot support. Generated models are genuinely useful — they let someone learn the tool on a realistic structure in an afternoon — but only if nobody mistakes them for an assessment.

Bringing your own

pracciolini translates between the OpenPRA MEF, OpenPSA MEF XML, and SAPHIRE through a PRAXIS round trip. If a model survives the round trip unchanged, it will open here.

Import guide →