HVAC Suite

HVAC Suite is a professional engineering toolkit for HVAC engineers, mechanical engineers, and students — with 23 specialised calculators in one app.

━━━ PSYCHROMETRICS ━━━
★ State Point Calculator
Calculate all psychrometric properties from any two known parameters:
• Dry-bulb + Relative humidity
• Dry-bulb + Humidity ratio
• Dry-bulb + Wet-bulb temperature
Outputs: wet-bulb, dew point, humidity ratio, RH, enthalpy, specific volume, vapour pressure.

★ HVAC Process Analyser
Analyse 8 psychrometric processes with full energy and moisture calculations:
Sensible Heating · Sensible Cooling · Humidification · Dehumidification · Cooling & Dehumidification · Heating & Humidification · Evaporative Cooling · Adiabatic Mixing

★ SHR / Loads — Sensible Heat Ratio and coil load breakdown
★ Property Table — Full psychrometric property tables

━━━ AIR SYSTEMS ━━━
★ Duct Sizing — Velocity and pressure drop for supply/return ducts
★ Fan Laws — Speed, flow, pressure, and power scaling
★ Ventilation — Outside air rates per ASHRAE 62.1
★ Economizer — Free cooling analysis and switchover conditions
★ VAV / Reheat — Variable air volume box sizing and reheat energy
★ Zone Summary — Multi-zone load and airflow summary
★ CO₂ / DCV — Demand-controlled ventilation and CO₂ setpoint calculator
★ Diffuser Throw — K-factor method for supply diffuser selection

━━━ WATER & COOLING ━━━
★ Cooling Tower — Range, approach, effectiveness, and GPM
★ CT Water — Cooling tower make-up water and blowdown calculations
★ Chiller IPLV — AHRI 550/590 part-load value weighting

━━━ REFRIGERATION ━━━
★ Refrigerant Properties — Saturation tables for R-22, R-134a, R-410A, R-32, R-454B, R-290
★ Refrigeration Cycle — Full vapour-compression cycle: COP, EER, kW/TR, discharge temperature
★ ERV / HRV — Heat and energy recovery ventilator effectiveness and savings

━━━ HYDRONIC & EQUIPMENT ━━━
★ Pipe Sizing — Velocity and pressure drop for chilled/hot water piping
★ Pump Sizing — Head, flow, and power for hydronic pumps
★ Coil Select — Sensible and latent coil duty calculator
★ Room Load — Simplified room-level heat gain estimate
★ VRF — Variable refrigerant flow capacity and piping equivalent length
★ Equipment Check — COP, EER, and SEER verification tool
★ PMV / Comfort — Predicted Mean Vote thermal comfort index (ISO 7730)

━━━ WHY HVAC SUITE ━━━
• All calculations offline — no internet required
• SI units throughout
• Standard psychrometric equations at sea-level pressure
• Designed for engineers, usable by students

Perfect for system design, load calculations, equipment selection, field checks, and engineering coursework.