Neutron Flux SpectrumThermal-reactor neutron flux across ten decades of energy: the fast fission (Watt) source, the 1/E slowing-down plateau, and the thermal Maxwellian in equilibrium with the moderator.Benchmark tested · 26/26 · Benchmark reportENUADENLFRESPL
Xenon-135 TransientCoupled iodine-135 / xenon-135 dynamics after shutdown. Xenon overshoots as I-135 keeps decaying while burnup stops — the “xenon pit” that can lock out restart (reactor dead time).Benchmark tested · 38/38 · Benchmark reportENUADENLFRESPL
Point Reactor KineticsPoint kinetics with six delayed-neutron groups. Insert a step reactivity to see the prompt jump, the stable period and the inhour curve — and the prompt-critical boundary at one dollar that operation must never cross.Prototype · Benchmark reportENUADENLFRESPL
Small Modular Reactor ScreeningSmall modular reactors are a catalogue of about a hundred designs of which perhaps fifteen could actually be ordered, so the matching is the easy part and the honesty is everything.Prototype · Benchmark reportENUADENLFRESPL
Reactor Core Scoping StudioSize a bare cylindrical core of thirteen reactor lines, read its k-effective, cycle length, discharge burnup, feedback coefficients and fuel cost from lattice data computed with OpenMC and ENDF/B-VIII.0.Prototype · Benchmark reportENUADENLFRESPL
Probability Budget — reactor failure gamePlay the failure library: pick a tool, strike a reactor schematic, and see whether the barriers of that revision hold and what the sequence costs against the screening threshold.PrototypeENNL
Probabilistic Risk ExplorerBuild linked fault trees and routed event trees, calculate exact Top Event probability, truncated or full minimal cut sets, importance, sensitivity and uncertainty.Benchmark tested · 18/18 · Benchmark reportENUADENLFRESPL
Safety Improvement PrioritiserEnumerates feasible safety-improvement portfolios under budget and schedule constraints, preserves CDF/LERF overlap uncertainty, and exposes the Pareto set without collapsing engineering consequences into one score.Benchmark tested · 235/235 · Benchmark reportENUADENLFRESPL
Nuclear Standards Orientation AidMaps the normative landscape of a nuclear project by facility type, lifecycle stage and jurisdiction: which documents belong to the field, what work has to be done, and which bodies will ask for it.Benchmark tested · 13/13 · Benchmark reportENUADENLFRESPL
Steam Tables (IAPWS-IF97)Thermodynamic properties of water and steam per IAPWS-IF97. Specify any two properties to compute the rest across the saturation and superheated regions, with built-in validation checkpoints.Benchmark tested · 299/299 · Benchmark reportENUADENLFRESPL
Thermodynamic CyclesVapour power and refrigeration cycles — Rankine with reheat or regenerative feedwater heating, and vapour-compression with an internal heat exchanger, two-stage flash economiser or transcritical CO2 — for nine working fluids, plotted on T–s, h–s, lg p–h, lg p–v and T–h diagrams.Benchmark tested · 57/57 · Benchmark reportENUADENLFRESPL
Gas Dynamics LaboratoryExplore Laval nozzles, choking and moving normal shocks, Fanno, Rayleigh, oblique-shock, Prandtl–Meyer and shock-tube flows, plus unsteady 1D Euler transients.Benchmark tested · 257/257 · Benchmark reportENUADENLFRESPL
2D Heat TransferInteractive two-dimensional temperature-field model. Define materials and boundary conditions, then inspect temperatures, gradients, isotherms and heat-flow paths.Benchmark tested · 12/12 · Benchmark reportENUADENLFRESPL
Moody Diagram & Pipe FrictionInteractive Moody diagram for internal pipe flow. Set Reynolds number and relative roughness to identify the flow regime and obtain the Darcy friction factor for pressure-loss calculations.Benchmark tested · 145/145 · Benchmark reportENUADENLFRESPL
Pump & Fan Operating PointExplore pump and fan operating points by changing system resistance, speed, density and parallel machines; inspect efficiency, power, NPSH or stability, and where pressure is spent.Benchmark tested · 158/158 · Benchmark reportENUADENLFRESPL
Relief / Blowdown / DepressurisationPipe / Vessel Transients — dynamic rigid-vessel depressurisation for ideal gas or superheated steam through an orifice, Kv/Cv valve or lumped-loss pipe, with wall heat transfer and target-pressure event detection. Optional steam mode continues the vessel inventory through the saturation dome as a homogeneous-equilibrium water/steam mixture.Prototype · Benchmark reportENUADENLFRESPL
Gas-Line Packing / DepackingPipe / Vessel Transients — lumped isothermal gas-line inventory under supply-orifice inflow and specified withdrawal, showing linepack pressure and mass versus time.Benchmark tested · 456/456 · Benchmark reportENUADENLFRESPL
Relief Valve Sizing — PreliminaryPipe / Vessel Transients — physics-based preliminary relief area for ideal gas or incompressible liquid, with automatic gas choking check and equivalent throat diameter.Benchmark tested · 347/347 · Benchmark reportENUADENLFRESPL
Two-Phase Critical FlowPipe / Vessel Transients — water HEM critical-flow scan along an isentropic equilibrium path, reporting critical mass flux, throat pressure, quality and density.Prototype · Benchmark reportENUADENLFRESPL
Pipe Filling / DrainingPipe / Vessel Transients — inertial liquid filling/draining model coupling tank level and pipe velocity with Darcy/local losses, showing startup and level transient.Benchmark tested · 253/253 · Benchmark reportENUADENLFRESPL
Tank PressurisationPipe / Vessel Transients — adiabatic rigid-tank pressurisation from a fixed gas supply through an orifice, with choking transition, pressure, temperature and admitted mass versus time.Benchmark tested · 234/234 · Benchmark reportENUADENLFRESPL
Water Hammer Transient SandboxSimulate pressure waves in a reservoir–pump–pipe–valve system during valve closure, pump trip and check-valve action; view x–t pressure, HGL and extrema.Benchmark tested · 48/48 · Benchmark reportENUADENLFRESPL
Room Ventilation CalculatorModel room ventilation and heat balance. Enter climate, geometry, envelope, heat sources and openings to obtain the temperature stratification by height, opening velocities and the overall heat balance.Benchmark tested · 23/23 · Benchmark reportENUADENLFRESPL
Dehumidification Method SelectorFour dehumidification paths — cooling below the dew point with reheat, freeze-out on two alternating coils, a desiccant rotor with regeneration and purge sector, and a refrigerant heat-pump unit…Benchmark tested · 13/13 · Benchmark reportENUADENLFRESPL
Closed-Atmosphere Life SupportDynamic atmosphere model of a sealed habitable volume: carbon dioxide, oxygen, water vapour, trace contaminants and temperature are integrated together with a fourth-order Runge-Kutta scheme.Benchmark tested · 28/28 · Benchmark reportENUADENLFRESPL
Standards Orientation AidA first-level navigator through the normative landscape of industrial climate control and process ventilation: binding law, standards, sector guidance…Benchmark tested · 211/211 · Benchmark reportENUADENLFRESPL
Solar Gain & PV YieldAbsorbed solar power on a surface of any shape, anywhere on Earth. Pick the site on a globe, choose a panel, box, roof, dome, hangar, tower or recessed window, and set size, tilt and azimuth.Benchmark tested · 58/58 · Benchmark reportENUADENLFRESPL
Roof Stormwater StudioModel roof retention, ponding and emergency overflow; normal roof drainage is an external verified flow boundary, while emergency openings are hydraulically sized and compared across code profiles.Prototype · Benchmark reportENUADENLFRESPL
Electrical load listBuilds a load list per board and operating case: demand P, Q, S and current, board diversity, transformer and generator loading, the largest-motor start step and UPS battery energy.Benchmark tested · 108/108 · Benchmark reportENUADENLFRESPL
Cable SizingManufacturer-neutral low-voltage cable sizing by conductor material, insulation and installation conditions.Benchmark tested · 72/72 · Benchmark reportENUADENLFRESPL
Electrical NetworkBuild a radial low-voltage one-line from an upstream source and transformer through buses and feeders to static loads and asynchronous motors.Benchmark tested · 18/18 · Benchmark reportENUADENLFRESPL
IEC 60909 Short-CircuitSequence-network short-circuit study with complex sparse nodal solution, IEC-oriented correction factors, peak, breaking and thermal-equivalent currents.Benchmark tested · 12/12 · Benchmark reportENUADENLFRESPL
Hydraulic Circuit SolutionsTwenty-two standard hydraulic circuits for heating and cooling in four categories — consumer control, generator connection, hydraulic decoupling and pump control…Benchmark tested · 203/203 · Benchmark reportENUADENLFRESPL
Control Loop LaboratoryAssemble a single control loop — setpoint, controller, actuator, plant, sensor, feedback and a disturbance injection — and watch the linear prediction and the non-linear simulation at the same time.Benchmark tested · 55/55 · Benchmark reportENUADENLFRESPL
PLC & DDC Control LabBuild PLC or DDC logic from IEC 61131-3 style blocks, connect it to a virtual tank, zone, valve and pump, inject faults and read the response.Benchmark tested · 114/114 · Benchmark reportENUADENLFRESPL
Functional Description BuilderControl narrative of one system: operating modes, GRAFCET/SFC sequences, control loops, interlocks and alarms, checked for unreachable steps, dead ends, non-deterministic transitions, unknown tags and setpoints outside the instrument range.Benchmark tested · 106/106 · Benchmark reportENUADENLFRESPL
Cause & Effect MatrixBuilds a cause and effect matrix — causes with voting, delay and bypass, effects with safe state, latch and reset — evaluates any cause scenario and reviews every combination for conflicts, coverage, reset and convention gaps.Benchmark tested · 100/100 · Benchmark reportENUADENLFRESPL
I/O ListBuilds a control system's I/O list: tag, signal and electrical type, range, fail state and SIL per signal, then allocates channels to cards and reports counts, spare and findings.Benchmark tested · 159/159 · Benchmark reportENUADENLFRESPL
Functional TestsGenerates one functional test per cause-and-effect cell, voting combination, sequence transition, mode edge and IO loop, records execution with evidence, and measures coverage of the control model.Benchmark tested · 128/128 · Benchmark reportENUADENLFRESPL
LOTO / Isolation PlannerDraw equipment with its energy sources and stores, set isolation, dissipation and verification, and get the open energy paths to the work zone and an ordered isolation register.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
Permit-to-Work StudioAssembles a permit-to-work review for hot work, confined space, electrical, excavation, work at height or general work and lists blocking and advisory findings by rule ID and field.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
Bow-Tie Barrier BuilderBuild a bow-tie of threats, top event and consequences, specify each barrier, and get a barrier register with findings on missing assurance and shared dependencies.Benchmark tested · 65/65 · Benchmark reportENUADENLFRESPL
Incident Causal TreeRecord an incident timeline as facts, inferences, hypotheses and unknowns, link causes with a written rationale, assess barriers and tie each corrective action to a cause or barrier.Benchmark tested · 66/66 · Benchmark reportENUADENLFRESPL
Work-at-Height LabSide-elevation model of guardrail, restraint and fall-arrest set-ups: sums the clearance components below a work edge, compares them with the available depth and flags swing falls.Benchmark tested · 78/78 · Benchmark reportENUADENLFRESPL
Noise Exposure StudioBuilds a shift from tasks with LAeq and duration, computes the daily noise exposure LEX,8h, each task's energy share and an at-ear estimate, and compares them with a sourced threshold preset.Benchmark tested · 79/79 · Benchmark reportENUADENLFRESPL
Lifting and sling geometryEnter load mass, centre of gravity, lifting points and hook: get the tension in each sling leg, leg angles, the settled tilt and utilisation against the WLL you enter.Benchmark tested · 78/78 · Benchmark reportENUADENLFRESPL
Confined Space Entry PlannerPlan an entry into a tank, pit or duct: mark entries, hazard sources, ventilation, numbered measuring points and rescue equipment, and list the gaps left before entry.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
Hot Work Risk StudioDraw the hot-work area on a plan, place the work point, combustibles, openings, cylinders and extinguishers, and get the affected zone and the open controls.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
PPE Decision MatrixAssigns generic PPE classes to hazards left after elimination, substitution, engineering and administrative controls, and builds a task × PPE matrix with rule IDs and sources.Benchmark tested · 74/74 · Benchmark reportENUADENLFRESPL
Electrical Safe-Work Boundary LabPlans the preparation of electrical work: isolation, securing against reconnection and prove–test–prove verification, checked rule by rule against a selectable rule pack with AC/DC voltage bands.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
Excavation Safety PlannerDraw a trench or excavation section with slope or support, edge loads, water, access and buried services, and list open findings against a selected sourced rule pack.Benchmark tested · 80/80 · Benchmark reportENUADENLFRESPL
JSA / TRA BuilderBuild a job safety analysis step by step: hazards per step, initial and residual rating on your own matrix, linked controls, weak-control flags and an action register.Benchmark tested · 67/67 · Benchmark reportENUADENLFRESPL
Emergency Drill SimulatorPlay an emergency step by step (fire, gas leak, injury, lost contact, evacuation) and get a debrief of decisions, missed cues and barriers, each traced to a rule ID.Benchmark tested · 62/62 · Benchmark reportENUADENLFRESPL
Safety Scenario LabSet conditions and barriers for ten illustrated workplace scenarios, make run decisions and trace each pathway from hazard to blocked, open or review-required consequence.Benchmark tested · 78/78 · Benchmark reportENUADENLFRESPL
Project WorkspaceTransport and overview hub for one project package: open, export or clear it, see what every tool wrote, and resolve every cross-reference against the register that owns the identifier.Benchmark tested · 112/112 · Benchmark reportENUADENLFRESPL
Equipment Datasheet BuilderBuilds process and technical datasheets for eleven equipment types, with values per operating case in SI, pulls from attached calculations with their trace, consistency rules and revision comparison.Benchmark tested · 105/105 · Benchmark reportENUADENLFRESPL
Technical Requisition BuilderAssembles one package's requisition — scope and battery limits, applicable requirements, datasheets, vendor documents, inspection points, spares, packing, bid instructions — and checks it against the issue purpose.Benchmark tested · 143/143 · Benchmark reportENUADENLFRESPL
Technical Bid EvaluationEvaluate 2–10 technical bids against one requisition: compliance per requirement, knock-out on mandatory items, weighted score, rank, and the weight change that would alter rank 1.Benchmark tested · 95/95 · Benchmark reportENUADENLFRESPL
Deviation / Clarification RegisterKeeps technical queries, deviations and concessions against the requirement each one touches, checks them against an authority matrix, and reports open counts, ageing and response times.Benchmark tested · 108/108 · Benchmark reportENUADENLFRESPL
Package ReadinessDecides whether an equipment package is ready for its next gate — purchase order, FAT, delivery, installation or turnover — and names the register, item and reason behind every blocker.Benchmark tested · 142/142 · Benchmark reportENUADENLFRESPL
Commissioning & Turnover PlannerFollows each system from scope through requirement, test, evidence, punch/NCR, closure and turnover dossier to acceptance, and names the first link that does not hold and why.Benchmark tested · 167/167 · Benchmark reportENUADENLFRESPL
Design Change Impact MapperMaps first- and second-order consequences of an engineering change into areas, actions, evidence and closure, with screening, edge provenance and approval state.Benchmark tested · 161/161 · Benchmark reportENUADENLFRESPL
Cycling & Fatigue LifeCalculates cumulative fatigue usage by transient group and projects CUF for future cycling scenarios, with bounded optional environmental correction.Benchmark tested · 132/132 · Benchmark reportENUADENLFRESPL
Wall Thinning TrenderTrend comparable thickness measurements, quantify uncertainty and estimate when a supplied minimum thickness may be reached.Benchmark tested · 114/114 · Benchmark reportENUADENLFRESPL
Control & Software ChangeCompares structured control baselines, traces semantic changes to functions and requirements, and proposes retest candidates without claiming completeness.Benchmark tested · 210/210 · Benchmark reportENUADENLFRESPL
CO₂ propertiesThermodynamic and transport properties of pure CO₂ (Span–Wagner EOS: density, enthalpy, entropy, cp, speed of sound, viscosity, thermal conductivity, saturation) from p–T, p–h, p–s or saturation inputs, for CCUS capture, compression, pipeline, ship and storage design.Benchmark tested · 140/140 · Benchmark reportENUADENLFRESPL
CO₂ compression & conditioningScreening calculator for a multi-stage CO₂ compression, dehydration and pumping or liquefaction train for CCUS, giving stage count, power, specific energy, cooling duty and cost per tonne.Benchmark tested · 39/39 · Benchmark reportENUADENLFRESPL
CO₂ pipeline sizingSizes dense-phase or gas-phase CO₂ transport pipelines, covering hydraulics, booster stations and levelised transport cost.Benchmark tested · 13/13 · Benchmark reportENUADENLFRESPL
CO₂ storage screeningScreening of geological CO₂ storage in saline aquifers and depleted gas fields: capacity, injectivity, well count, wellbore profile and levelised storage cost.Benchmark tested · 32/32 · Benchmark reportENUADENLFRESPL
Separator sizingVertical or horizontal gas-liquid separator sizing by the Souders-Brown method (GPSA Section 7, API Spec 12J): allowable gas velocity, vessel diameter, shell height or length, liquid volume and a to-scale sketch.Benchmark tested · 14/14 · Benchmark reportENUADENLFRESPL
Hydrate inhibitionMethanol or glycol injection rate for a required hydrate temperature depression by Hammerschmidt or Nielsen-Bucklin (GPSA Section 20): rich-phase inhibitor fraction, lean solution and pure inhibitor rates, and a rich-phase mass split diagram.Benchmark tested · 14/14 · Benchmark reportENUADENLFRESPL
Erosional velocityErosional velocity of gas, liquid and two-phase production lines by the API RP 14E C-factor equation (5th ed., 1991, reaffirmed 2013): no-slip mixture velocity against Ve = C/√ρm, velocity ratio, minimum inner diameter and a to-scale pipe cross-section.Benchmark tested · 14/14 · Benchmark reportENUADENLFRESPL
Flare radiationThermal radiation from an elevated flare by the API Std 521 Annex C point-source method: flame length, wind tilt, radiation at a receptor, minimum safe distance and stack height, with a grade-level radiation profile.Benchmark tested · 15/15 · Benchmark reportENUADENLFRESPL
Pipeline Corrosion Defect AssessmentWeb calculator that determines failure pressure, safe pressure, estimated repair factor (ERF) and maximum allowable length of single longitudinal corrosion metal-loss defects in oil, gas and hydrogen pipelines using ASME B31G original, modified B31G (0.85dL) and DNV-RP-F101 Part A/B.Benchmark tested · 29/29 · Benchmark reportENUADENLFRESPL
Pipeline Dent Strain CalculatorEstimates dent strain in oil, gas and hydrogen pipelines from measured dent geometry per ASME B31.8-2022 Nonmandatory Appendix R and checks it against acceptance limits.Benchmark tested · 21/21 · Benchmark reportENUADENLFRESPL
Pipeline Cathodic ProtectionSizes galvanic bracelet anodes for coated offshore or buried pipelines per DNV-RP-F103, DNV-RP-B401 and ISO 15589-2, from current demand to anode count.Benchmark tested · 23/23 · Benchmark reportENUADENLFRESPL
Gas dispersionDownwind distance and width of a continuous gas release to the LFL or a toxic level, using a Gaussian plume (Pasquill-Gifford) or Britter-McQuaid dense gas model.Benchmark tested · 8/8 · Benchmark reportENUADENLFRESPL
Hydrogen jet fireRelease rate, flame length and radiant heat flux of an ignited hydrogen leak, with distances to NFPA 2 and API 521 heat-flux criteria.Benchmark tested · 7/7 · Benchmark reportENUADENLFRESPL
Vapour cloud explosion overpressureSide-on overpressure, duration and impulse of a vapour cloud explosion at a receptor and distances to damage thresholds, by the TNO Multi-Energy and Baker-Strehlow-Tang methods.Benchmark tested · 15/15 · Benchmark reportENUADENLFRESPL
LOPA and SIL targetLayer of protection analysis for one scenario: mitigated frequency, required risk reduction and SIL per IEC 61511-1, and a PFDavg check of a proposed SIF.Benchmark tested · 8/8 · Benchmark reportENUADENLFRESPL
Methane emissions (OGMP 2.0)Annual CH4 inventory of an oil and gas facility from equipment counts, tanks, blowdowns and flaring, with CO2e, methane intensity and OGMP 2.0 level.Benchmark tested · 7/7 · Benchmark reportENUADENLFRESPL
Electrolyser SizingSizes a PEM, alkaline or SOEC electrolysis plant from rated power: polarisation curve, hydrogen output, system kWh/kg and efficiency on LHV and HHV basis, stacks, heat, water and voltage degradation over stack life.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Blue Hydrogen SMR/ATRMass and energy balance of steam methane reforming or autothermal reforming with CO₂ capture: reformer equilibrium, shift, PSA, natural gas use (LHV), captured and emitted CO₂ and carbon intensity against the 3.38 kg CO₂e/kg low-carbon threshold.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Hydrogen CompressorSizes a multi-stage intercooled hydrogen compressor with real-gas properties from GERG-2008 (ISO 20765-2:2015) and Leachman (2009): stage ratio, discharge temperatures, intercooler duty, shaft power and kWh per kg.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Hydrogen Storage VesselSizes a bank of compressed-hydrogen vessels (Types I-IV, EN 17533:2020) with real-gas density from Leachman (2009): usable mass per vessel, number of vessels, ideal-gas error, burst pressure and LHV energy.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Hydrogen Underground StorageWorking gas, cushion gas, energy (LHV), withdrawal rate and annual throughput of a hydrogen salt cavern from its volume, depth and the lithostatic pressure window (Caglayan et al. 2020), with Leachman (2009) real-gas density.Benchmark tested · 19/19 · Benchmark reportENUADENLFRESPL
LH2 Boil-offBoil-off of a vented liquid hydrogen tank from heat leak and ortho-para conversion (Petitpas, LLNL 2018): initial rate in %/day, mass and LHV energy lost over the storage period, and the para fraction at the end.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Hydrogen blending into natural gasWobbe index, calorific value and relative density of a natural gas–hydrogen blend by ISO 6976:2016, the EN 16726 H-gas check and the maximum admissible hydrogen fraction.Benchmark tested · 14/14 · Benchmark reportENUADENLFRESPL
Beam DiagramsShear-force and bending-moment diagrams for beams. Choose the supports, add point, distributed and triangular loads or applied moments, and read the reactions and internal-force diagrams.Benchmark tested · 22/22 · Benchmark reportENUADENLFRESPL
2D Frame / FEM WorkbenchBuild planar beam-column frames and run linear static, initial-stress P–Δ second-order, undamped modal or eigenvalue-buckling FEM: supports, springs, loads and combinations, reactions, deflections, N/V/M diagrams, natural frequencies, mode shapes and critical load factors.Benchmark tested · 41/41 · Benchmark reportENUADENLFRESPL
Debris Runout StudioBuild terrain, shell/wall geometry and mitigation, release shaped debris, model fragmentation, and map 2.5D Monte Carlo transit, landing, energy and runout hazard.Prototype · Benchmark reportENUADENLFRESPL
Fourier Series BuilderReconstruct periodic waveforms — square, sawtooth, triangle — from their Fourier harmonics. Adjust the partial sums, inspect the amplitude spectrum and coefficients, and export the result.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL
Iron–Carbon Phase DiagramInteractive Fe–Fe₃C phase diagram. Pick a composition and temperature to identify the phases present, their fractions, and the invariant reactions (eutectic, eutectoid, peritectic).Benchmark tested · 45/45 · Benchmark reportENUADENLFRESPL
Molecule ConstructorBuild molecules atom by atom. Place atoms, connect them with bonds, and assemble structures on an interactive drawing canvas.Benchmark tested · 16/16 · Benchmark reportENUADENLFRESPL