HVAC Engineering Studio — Animated Walkthrough

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Engineering Learning Studio

HVAC Engineering Studio

Manual J Manual D ASHRAE 62.2 Duct Sizing Equipment Selection BMS

🛠️ Design Tools 1

🌐 3D Web Apps 3

🎮 Simulators 6

🧮 Calculations 12

📚 Articles 13

📥 Downloads

Residential HVAC DesignerLIVE

Full Manual J room-by-room load calculation, Manual S equipment selection, Manual D duct sizing, airflow schedule, wiring diagram, and permit-ready package.

Manual JManual DASHRAE 62.2

HVAC 3D Building ViewerLIVE

Interactive 3D 3-story commercial building. Explore AHUs, VAV boxes, chiller plant, boiler, hydronic piping, ductwork, and BAS controllers with ASHRAE references.

3D InteractiveAHUChiller Plant

Commercial HVAC 3D Interactive DesignerLIVE

Split-screen central-plant HVAC — rooftop AHU, DOAS, cooling tower, chiller/boiler/pumps, VAV boxes with reheat, and BAS sensors. Toggle to floor plan with duct/pipe runs.

Central CHW PlantVAV + ReheatBAS

HVAC Interactive DesignerLIVE

Split-screen 3D building + live system schematic. Click any device — AHU, VAV, DDC, chiller — to cross-highlight across both panels. Covers BACnet, CHW/HHW piping, ASHRAE 90.1.

3D + SchematicBACnetASHRAE 90.1

🌀 Refrigeration Cycle SimulatorLIVE

Animated P-h diagram. Adjust evap/cond temps, superheat, subcooling — state points shift and COP updates live. R-410A, R-32, R-22.

P-h DiagramCOP

🌫️ Psychrometric Process SimulatorLIVE

Interactive psychrometric chart with animated process lines — heating, cooling/dehumidification, humidification, and air mixing.

PsychrometricsEnthalpy

🧊 Chiller Plant Sequence SimulatorLIVE

Two-chiller plant with cooling tower and primary/secondary pumps. Vary load 0–100% and watch staging logic and kW/ton efficiency.

Chiller StagingkW/ton

💨 Duct Network Airflow SimulatorLIVE

Animated SVG duct tree from AHU to diffusers. Color-coded velocity bands flag over- and undersized ducts. Shows CFM, velocity, and pressure drop per segment.

Duct VelocityPressure Drop

🔄 Air Handling Unit Process SimulatorLIVE

Animated AHU cross-section — airflow particles through mixed-air dampers, preheat, cooling coil, supply fan, and reheat. Temperatures update live.

AHUCoil Sequencing

🌡️ Zone Control SimulatorLIVE

Multi-zone thermostat simulation over a 24-hour day. Set setpoints and occupancy per zone — watch the HVAC system cycle as outdoor temps change.

Multi-Zone24-Hour Cycle

❄️ Cooling Load EstimatorLIVE

Manual J simplified: envelope, solar, occupants. Outputs tons and BTU/hr.

Manual JTonnage

🔥 Heating Load EstimatorLIVE

Heat loss by component at 99% design temp. Outputs MBH and BTU/hr.

Manual JMBH

🌀 Duct Sizing — Equal FrictionLIVE

ACCA Manual D — CFM + friction rate → round diameter, velocity, pressure drop.

Manual DCFM

🌬️ Ventilation CalculatorLIVE

ASHRAE 62.1 outdoor air by space type — people and area components, zone OA flow.

ASHRAE 62.1IAQ

🧊 Chiller Sizing CalculatorLIVE

Chiller plant capacity with diversity and redundancy. Outputs tons, kW/ton, CHW GPM.

ChillerCHW GPM

🌊 Hydronic Pipe SizingLIVE

Hazen-Williams sizing for CHW/HHW. Velocity check, friction loss, pump head, glycol correction.

HydronicGPM

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HVAC System Design Basics: How to Design Heating and Cooling for Buildings

9 min

🌬️

HVAC Duct Sizing: Manual D Method and Equal Friction Approach Explained

9 min

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Manual J Residential Load Calculation: How to Size HVAC Systems Correctly

8 min

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VAV HVAC Systems: How Variable Air Volume Works and When to Use It

8 min

❄️

Chilled Water HVAC Systems: Design Fundamentals for Commercial Buildings

9 min

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Building Management Systems (BMS): How Smart Buildings Work

7 min

🌡️ HVAC & Mechanical Systems Reference

14 sections · Interactive Reader

Interactive 14-section ASHRAE reference covering psychrometrics, cooling/heating load calculations, duct sizing, refrigeration cycle, chillers, VRF systems, ASHRAE 62.1 ventilation, and energy codes.

📕 HVAC License Prep Guide Complete Handbook

PDF · 1.65 MB

Comprehensive HVAC licensing exam preparation guide covering load calculations, equipment selection, refrigeration cycles, and code requirements.

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