HVAC Visual Learning Studio

Version 3.0 — HVAC Calculators + Refrigerants Database This release adds two major HVAC-specific features that make this app a genuinely useful daily tool for working engineers and technicians: NEW — HVAC CALCULATORS TAB Eight engineering calculators every HVAC designer runs constantly: - Sensible heat load (q = 1.08 × CFM × ΔT) - Latent heat load (q = 4840 × CFM × ΔW) - Mixed air temperature blender - Duct sizing (equal-friction method) - Pump friction head loss - Refrigerant superheat / subcooling diagnostic with charge interpretation - Annual cost of operation - Sensible Heat Ratio classifier Every input is a slider — results update live. NEW — REFRIGERANTS TAB Side-by-side database of 9 common refrigerants (R-22, R-410A, R-134a, R-32, R-454B, R-1234yf, R-290, R-744, R-717) with ASHRAE 34 safety class, GWP, ODP, critical properties, operating pressure ranges, applications, and engineering notes. Filter by family. NEW — WHAT'S NEW SCREEN Auto-presented on first launch with a guided tour of the v3.0 features. NEW — HOME SCREEN The home tab now prominently features the new Calculators and Refrigerants sections so they're visible the moment you open the app. EVERYTHING ELSE All v2.0 features carry forward: the four animated simulators in the Lab, the curriculum, the design projects, the searchable reference, and all 56 illustrations. Your saved progress migrates automatically. Thanks for using HVAC Visual Learning Studio. Tap the feedback link in the Guide tab to send suggestions.