ai4UCheE — ChemEng's Intelligent Workbench

6 Canonical Textbooks · 55+ Interactive SVG Charts · 24 Plant Problems
Launch Workbench
Undergraduate Chemical Engineering Studio · Year 2 to Year 4 Progression

Understand the Core Subjects Behind Real Plant Problems

ai4UCheE helps chemical engineering students see why pump cavitation, column flooding, and reactor runaway happen by connecting real plant symptoms directly to governing textbook equations, interactive SVG diagrams, and step-by-step unit checks.

5-Step Learning Path:
1. Observe Plant SymptomCavitation, 4× ΔP error, column flood, or thermal runaway
2. Pick Course Subject (Year 2–4)Thermodynamics → Fluid Mechanics → Separations → Kinetics → Capstone
3. Inspect Governing EquationSymbolic law + explicit psig/psia & f_D = 4·f_F unit substitution
4. Test Fixes on SVG DiagramDrag operating points & sliders with zero-latency feedback
5. Check Screening WindowVerify preliminary educational screening & printable summary
3-Zone Studio Architecture

1 Top Studio Bar · 1 Interactive SVG Canvas · 1 Sticky AI Co-Pilot

  • Zone 1 (Top Bar): Switch 5 Subject Labs, launch 24 L1–L4 Plant Problems, toggle Learn ↔ Plant, or open Charts & Calc Sheet.
  • Zone 2 (Engineering Canvas): Drag duty points on SVG curves and scrub 34px number dials with zero-latency client solvers.
  • Zone 3 (AI Co-Pilot): Live <current-screen> sync, + Ask chips, and natural-language slider mutations.
Launch Live Workbench (/app) Watch 5-Step Video Guide
6 Canonical Reference Textbooks Indexed

Every Equation & Chart Grounded in Verbatim Page Citations

1. Perry's 9th Ed.
25 Sections · 2,274 pp. Reference
[Sec 1–25 + S-P Index]
2. Fogler 7th Ed.
Reaction Engineering
[19 Ch. Textbook · CSTR/PFR]
3. BSL Revised 2nd Ed.
Transport Phenomena
[Momentum · Heat · Mass]
4. SVNA 9th Ed.
ChE Thermodynamics
[VLE · Cubic EOS · Cycles]
5. Seader 4th Ed.
Separation Principles
[McCabe · Kremser · LLE]
6. Crowl & Louvar 4e
Process Safety
[Semenov · LOC · Reliefs]
✓ DoF = 0 Verified · Explicit psig ↔ psia · Explicit Fanning f_F vs. Darcy f_D = 4·f_F
15-Second Quick Overview · 1920×1080 · 30 FPS · EN/VI Captions

15-Second Quick Overview: 5 Guided Workflow Snapshots

A 15-second visual preview of the 5 studio workflow steps — click any 3-second snapshot on the right to jump straight to that moment or read the full transcript below.

▶ Chapter 01 · 3-Zone AI-Native Studio (00:00) 1920×1080 H.264 · Remotion 4
Transcript / Phụ đề (00:00–00:15 · EN/VI)
  1. 00:00–00:03 · Ch. 1: Connect real plant symptoms to 6 undergraduate ChE textbooks and 28 calibrated solvers.
  2. 00:03–00:06 · Ch. 2: Progress from Year 2 Thermodynamics (DIPPR 101/105) and Fluid Hydraulics (f_D = 4·f_F, NPSHa) to Separations, Kinetics, and the Atlas.
  3. 00:06–00:09 · Ch. 3: Diagnose failure modes via the Fogler 6-stage flow (+35 pts DIY / +12 pts Assisted in your local browser practice meter).
  4. 00:09–00:12 · Ch. 4: Scrub interactive SVG handles and inspect 3-stage Symbolic → Substituted → Result KaTeX proofs.
  5. 00:12–00:15 · Ch. 5: Export 14-field calculation sheets with explicit psig/psia conversion and switch EN/VI instantaneously.
5 Subject Workbenches + Cross-Subject Charts Verifier

Every Core Chemical Engineering Subject — Interactive & Citation-Backed

Suggested Undergraduate Course Order (Year 2 → Year 4):
1. Year 2 · Thermodynamics & Phase EquilibriaPrereq: Material & Energy Balances → Predict boiling points, vapor pressure & VLE phase splits
2. Year 2/3 · Fluid Mechanics & HydraulicsPrereq: Thermo I → Size pipes, distinguish Fanning vs. Darcy friction & prevent pump cavitation
3. Year 3 · Separation ProcessesPrereq: Phase Equilibria → Step off McCabe-Thiele stages & check Fair column flooding
4. Year 3/4 · Reaction EngineeringPrereq: Thermo & Transport → Size CSTR/PFR reactors & screen Semenov thermal stability
5. Year 4 · Capstone Design & SafetyPrereq: Core ChE Sequence → Run multi-section preliminary equipment & relief checks
Textbook Access & Copyright Policy: ai4UCheE is an independent bibliographic section/page index and deterministic equation solver designed for use alongside your own course textbooks — no copyrighted textbook PDFs or EPUB files are hosted or distributed.
Subject 1 · WB2 · Year 2 Foundation

Thermodynamics, Phase Equilibria & DIPPR

Exact DIPPR Eq. 101/106 correlations (5-parameter pure-component vapor pressure & ΔH_vap), Carlson property decision tree, Binary VLE T-x-y Azeotrope Explorer, and Peng-Robinson EOS dome. Prereq: Material & Energy Balances.

[Perry's 9e Table 2-8, p. 2-53 · SVNA 9e]
Open Lab → Plant Case →
Subject 2 · WB3 · Year 2/3 Transport

Fluid Mechanics, Transport & Piping Hydraulics

Commercial Sch 40/80 pipe sizing, explicit f_D = 4·f_F guardrail (Darcy piping factor = 4× Fanning transport factor), 3-case pump NPSH_A vs. NPSH_R (suction head margin above boiling), and ISA-75.01 valves. Prereq: Thermo I.

[Perry's 9e Fig. 6-9, p. 6-10 · BSL Ch. 2]
Open Lab → Plant Case →
Subject 3 · WB4 · Year 3 Separations

Separations, McCabe-Thiele & Column Hydraulics

Bi-directional 5-handle McCabe-Thiele stage-stepping canvas, Fenske-Underwood-Gilliland shortcuts (minimum stages & pinch reflux R_min), Fair's Souders-Brown flooding, Eckert GPDC, and Kremser N_OG absorption. Prereq: Phase Equilibria.

[Seader 4e Ch. 6–8 · Perry's 9e p. 14-37]
Open Lab → Plant Case →
Subject 4 · WB6 · Year 3/4 Kinetics

Kinetics, Catalysis & Chemical Reactor Design

Interactive Levenspiel plot (-r_A⁻¹ vs. X where CSTR is a rectangle and PFR is the integral area), Ergun PBR pressure drop, Thiele modulus φ & catalyst effectiveness η, and Semenov thermal runaway S-curve. Prereq: Thermo & Transport.

[Fogler 7e Ch. 2, 5, 12, 15 · Crowl 4e]
Open Lab → Plant Case →
Subject 5 · WB5 · Year 4 Capstone & Safety

25-Section Perry Atlas & 6-Book Search

Dedicated interactive SVG solvers for all 25 sections of Perry's 9th Ed. (from Economics Lang factor & Pinch ΔT_min to API 520 Relief Sizing, LOPA safety audits & Corrosion PREN) plus Back-of-Book Index (pp. 2244–2274). Prereq: Core ChE Sequence.

[Perry's 9e Sec 1–25 · pp. 2244–2274]
Open Lab → Plant Case →
Utility Tool · WB1 · All Years

10 Calibrated Nomographs & High-DPI Verifier

Cross-subject header utility auto-syncing the active lab's chart (6-10 Moody, 14-37 Fair, 14-57 Eckert, 2-53 DIPPR, 19-6 Levenspiel, 6-52 Sphere Drag, 4-18 Lee-Kesler, 15-10 Thiele, 14-15 Kremser, 23-42 Semenov) with white-box analytical telemetry.

✓ DeepTutor Chart Verifier
Open Charts → Plant Case →
24 Realistic Composite Plant Cases · Fogler & LeBlanc 6-Stage Flow

Start from a Realistic Plant Upset — Not a Disconnected Textbook Formula

4 Engineering Progression Tiers (24 Educational Composite Cases)

From Unit-Conversion Traps to Coupled Runaway Hazards

Tier L1 · Unit/Concept Trap
Catch 4× Fanning/Darcy & psig/psia datum traps before sizing equipment.
Tier L2 · Equipment Bottleneck
Resolve Pump P-101 suction cavitation & sieve-tray flooding bottlenecks.
Tier L3 · Multi-Hypothesis Upset
Diagnose Fogler Ch. 10 Boiler Feedwater Heater drop (70°C → 42°C) with Δt clues.
Tier L4 · Coupled Safety/Design
Screen Semenov reactor thermal stability (ψ > 1/e) & preliminary API 520 relief sizing.
24 Realistic Educational Composite Cases · 8 Equipment Categories · 5 Symptom Archetypes · Local Browser Practice Scorecard
Fogler Rule #12 · Hypothesis Falsification Studio

The 6-Stage Creative Problem-Solving Checklist

  1. Stage 1 · Problem Observation: Inspect Normal vs. Faulty plant telemetry & Δt temporal clues.
  2. Stage 2 · Problem Definition: Kepner-Tregoe IS / IS NOT matrix & Real Root Problem statement.
  3. Stage 3 · Fundamental Theory: Cite governing transport, thermodynamic, or kinetic equations.
  4. Stage 4 · Applicable Handbook: Verify empirical parameters against Perry's 9th Ed. page crops.
  5. Stage 5 · Hypotheses (Prove ✅ / Disprove ❌): Enforce Rule #12 ("seek to reject as well as to accept").
  6. Stage 6 · Actual Solution Verified: Restore safe plant margins & earn a FOG-WB*-DIY-XXXXXX stamp.
✓ DIY Solve (+35 pts Practice Score) · Socratic Hint · Auto-Fix Rescue (+12 pts Assisted · Local Browser Demo)
White-Box Proofs · Error-Signature Detector · System Topology

3-Stage White-Box Proofs & Validated Agent-Native System Architecture

Stage 1 · Symbolic Equation

Exact First-Principles Form

f_D = 4 · f_F  |  NPSH_A = (P_suc,abs - P_vp)/(ρg) + z_s - h_f,s

Every equation states its symbol basis and textbook equation number before any numbers are plugged in.

Stage 2 · Substituted with Units

Explicit Unit & Datum Guardrails

P_suc,abs = 15.0 psig + 14.696 psi = 29.70 psia · T = 373.15 K

Automatic ChE Error-Signature Detector flags 4× Fanning/Darcy, ±14.7 psi gauge/abs, ±273.15 K/°C, and 2.303× ln/log10 mistakes.

Stage 3 · Evaluated Result & Citation

Deterministic Verdict Badge

NPSH_A = 21.82 m ≥ NPSH_R (3.0 m) → Preliminary Screening Pass (Steady-State Textbook Basis · Not PE Sign-Off) [Perry's 9e p. 10-28]

Click Cite Stage 3 Theory or + Ask on any card to send the live proof and its model assumptions straight into the AI Co-Pilot.

📊 ai4UCheE — 3-Zone AI-Native Chemical Engineering Studio Architecture - 6 Canonical Textbooks · Deterministic Python/TS Solvers · Bi-Directional <current-screen> Co-Pilot

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ai4UCheE — 3-Zone AI-Native Chemical Engineering Studio Architectureai4UCheE — 3-Zone AI-Native Chemical Engineering Studio Architecture6 Canonical Textbooks · Deterministic Python/TS Solvers · Bi-Directional <current-screen> Co-PilotSwitch Lab / Preset MissionLaunch L1-L4 Plant Problem<current-screen> & +Ask ChipsScrub SVG / Dials (0ms)Rule #12 & 4x/psig GuardrailsVerify & High-DPI CropPyMuPDF / EPUB IndexCompile Rev 0 Calc SheetZone 1 · Top Studio Bar (5 La…ClientZone 2 · 55+ Interactive SVG…ClientZone 3 · Bi-Directional AI Co…Gateway6-Stage Fogler Detective & Err…WorkerClient ChE Math (DIPPR · Sw…ServicePython FastAPI Sidecar (Cool…Service6-Book Corpus (Perry 9e · Fo…Data storeSenior EPC QA/QC Calc Shee…Data storeClientServiceData storeGatewayWorker
Preliminary EPC-Style Calculation Sheets (Educational Screening · Not PE Sign-Off)

From Classroom Intuition to Preliminary EPC-Style Calculation Sheets

Preliminary Screening Only · Not for Construction or PE Sign-Off

One-Click Preliminary Calculation Sheet Compiler (14-Field EPC Format)

Click Calc Sheet in the studio header to compile a structured preliminary screening sheet containing:

  • Document Control Header: Equipment Tag (P-101A/B, T-201-DIST, R-401-PBR), Preliminary Screening Revision, and Textbook Basis of Design.
  • 3-Case Operating Matrix: 70% Turndown, 100% Normal, and 120% Design/Relief screening cases.
  • 3-Stage White-Box Derivations & 6-Stage Root-Cause Audit: Complete with Fogler Detective Stamp & Markdown download.
✓ Persisted anonymously to local SQLite saved_calculations · Printable & Markdown Exportable (Educational Screening Only)
Ready to Solve · Start in 1 Click

Explore ai4UCheE Live or Share with Any AI Agent

Built with full AI-Experience (AX) discovery surfaces (/index.md, /llms.txt, /llms-full.txt) and a header Share / AI menu for ChatGPT, Claude, and Perplexity.

Open Interactive Workbench (/app) View Markdown Twin (/index.md) Read /llms-full.txt
Educational & Preliminary Engineering Boundary & Data Privacy: Calculations use steady-state textbook correlations (DIPPR, Churchill, McCabe-Thiele, Fogler) for undergraduate instruction and preliminary screening — never use them for licensed PE sign-off, API 520/521 relief certification, or HAZOP/SIL safety audits.
AI Co-Pilot Data Flow: Interactive sliders and equations run 100% locally in your browser without external calls. When you send a chat message to the AI Co-Pilot (POST /api/copilot), only your prompt text, selected context chips, and current numerical workbench parameters (<current-screen>) are sent to the AI4U.now LLM gateway (gateway.ai4u.now, model gemini-4-argon-low, with zero-network local deterministic fallback if offline); zero personal identifiers are attached and prompts are processed ephemerally without server-side conversation retention.
Practice Points & Data Deletion: Solving a plant case by scrubbing sliders yourself awards +35 pts (DIY); using Auto-Fix awards +12 pts (Assisted); mastery % is the average across 6 ChE concept domains stored only in your browser's localStorage (reset anytime via ↺ Reset Scorecard in the app). Compiled calculation sheets persist anonymously in local SQLite (saved_calculations) and can be deleted anytime in 1 click via 🗑️ Delete Saved SQLite Sheets inside the Calc Sheet modal.
Owner & Support Contact: Maintained by the AI4U.now Engineering Education Team · Support, privacy & corrections: [email protected] · github.com/ai4U23/ai4UCheE/issues.