HVAC Visual Learning Studio

HVAC Visual Learning Studio is the engineering toolkit, refrigerant database, animated simulation lab, and visual reference library that working HVAC engineers actually use.

This is NOT a generic learning template. Every screen — calculators, refrigerants, simulators, illustrations, projects — is specifically built around the daily work of HVAC design, troubleshooting, and controls.


WHAT MAKES THIS APP DIFFERENT

→ HVAC ENGINEERING CALCULATORS (NEW in v3.0)
Eight production-ready calculators with live sliders:
- Sensible heat load (q = 1.08 × CFM × ΔT)
- Latent heat load (q = 4840 × CFM × ΔW)
- Mixed air temperature
- Duct sizing (equal-friction method)
- Pump friction head loss
- Refrigerant superheat & subcooling diagnostic — with charge interpretation
- Annual cost of operation from EER, tonnage, and electricity rate
- Sensible Heat Ratio classifier

Every input drives the result live. No spreadsheet required.

→ REFRIGERANT DATABASE (NEW in v3.0)
Nine common refrigerants compared side-by-side:
R-22, R-410A, R-134a, R-32, R-454B, R-1234yf, R-290 (propane), R-744 (CO₂), R-717 (ammonia).

For each: ASHRAE 34 safety class, GWP, ODP, critical properties, typical operating pressures, applications, and engineering notes. Filter by family — HFC, HFO, blend, or natural. Tap any card for the full datasheet.

→ HVAC SIMULATION LAB
Four animated simulators built specifically for HVAC:
- AHU Simulator — airflow particles, spinning supply fan, modulating dampers, virtual zone thermostat
- Refrigeration Cycle on a P-h diagram with live COP and EER
- Psychrometric Chart with live state plotting and process lines
- Chiller Plant with staging logic, cooling tower, animated water flow

→ ILLUSTRATED REFERENCE GALLERY
56 high-resolution HVAC diagrams across 11 categories: whole-house residential, multi-unit, commercial, industrial, ventilation, controls, documentation. Full-screen viewer with pinch-zoom.

→ CURRICULUM
Six modules: HVAC Fundamentals, Psychrometrics, Refrigeration, Air Distribution, Hydronics, and Controls/DDC. Lessons include code examples, quizzes, and bookmarks.

→ DESIGN PROJECTS
Six worked examples: residential Manual J, single-zone RTU sequences, VAV with reheat and pressure reset (ASHRAE Guideline 36), chiller plant design, school DOAS+ERV, heat-recovery VRF.

→ SEARCHABLE REFERENCE
Psychrometric equations, refrigerant properties, ASHRAE standards summaries, BACnet object types — searchable by keyword.


BUILT FOR

- HVAC design engineers running daily calculations
- Building automation and DDC professionals
- Energy auditors and commissioning agents
- HVAC technicians studying for NATE, EPA 608, or PE exams
- Mechanical engineering students
- Architects who want to actually understand the systems they spec


WHAT'S NEW IN v3.0

- HVAC Calculators tab — 8 engineering calculators (new tab on the bottom bar)
- Refrigerants tab — 9-refrigerant searchable database (new tab on the bottom bar)
- What's New screen on first launch highlighting t