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The program allows performing various calculations for HVAC systems engineering.

The program is a complex with unique dimension and content comprizing 70 calculations critical both for professional and entry-level HVAC engineer.

Browser support: Chrome, Opera, Firefox, Edge, Safari, Internet Explorer 10+.

  • Get the most up-to-date version of the program.
  • Use the program at any PC at any time.
  • Carry out single and complex calculations thanks to vast range of calculations.
  • Do the quick calculation selection by means of navigation at calculations sections.
  • Use the memorizing tools for quick save and calculation results applying.
  • Browse the formulas used in calculations.
  • Use suitable system of units: imperial or metric.
  • Use the math calculator for additional calculations.
Program functional capability table
Function
Aerodynamics
Air velocity in terms of diameter
Air velocity in terms of dimensions
Air velocity in terms of area
Air flow in terms of diameter
Air flow in terms of dimensions
Air flow in terms of area
Mass air flow rate
Volume air flow rate
Selection of the duct diameter
Selection of the rectangular duct dimensions
Friction pressure drop in the circular duct
Friction pressure drop in the rectangular duct
Pressure drop in terms of local losses
Circular orifice diameter
Circular orifice dimensions
Hydraulics
Fluid velocity
Fluid flow in terms of diameter
Fluid flow in terms of capacity
Capacity in terms of diameter
Capacity in terms of fluid flow
Selection of the pipeline diameter in terms of flow
Selection of the pipeline diameter in terms of capacity
Pipeline frictional pressure drop
Pressure drop in terms of local losses
Throttling orifice diameter
Valve Kv
Valve pressure drop
System volume change
Pipeline thermal extension
Heating
Internal face temperature of the guarding
Single material guarding heat transmission resistance
Two materials guarding heat transmission resistance
Ventilation
Capacity for air heating
Air cooling capacity by coil temperature
Air cooling capacity by relative humidity
Air cooling capacity by enthalpy
Fan electric motor capacity
Available pressure for natural ventilation
Air flow in terms of heat emission
Air flow in terms of humidity exudation
Water flow for air steam humidification
Capacity for air steam humidification
Air properties
Moisture content in the air in terms of enthalpy
Moisture content in the air in terms of relative humidity
Air enthalpy in terms of moisture content
Air enthalpy in terms of relative humidity
Air relative humidity in terms of moisture content
Air relative humidity in terms of enthalpy
Air mixture temperature
Air mixture moisture content
Air mixture enthalpy
Air mixture relative humidity
Air density
Air specific heat
Steam saturation pressure in terms of temperature
Steam saturation pressure in terms of moisture content
Barometric pressure
Partial pressure
Dewpoint temperature
Wet bulb temperature by relative humidity
Wet bulb temperature by enthalpy
Water properties
Water density
Water specific heat
Water kinematic viscosity
Engineering geometry
Steel pipeline weight
Surface area of the circular section insulation
Surface area of the rectangular section insulation
Surface area of the circular duct
Surface area of the rectangular duct
Equivalent diameter
News
Kitchen Ventilation is updated, the number of possible suction hoods there was increased from 5 to 10.
30.11.2017
HVAC Calculator for Android has been created. Favorites section added - calculations can be marked as Favorite
21.06.2017
New program - Ductwork Surface - has been created. The program allows performing the calculation of surfaces of ducts and their components
22.04.2017